ACGC SEC filings, in plain English
Everything ACP Holdings Acquisition has filed with the SEC that we hold — 31 filings, newest first, 29 with a plain-English summary of what changed and why it matters. Every row links to the primary document on EDGAR, so you can check the source rather than trust us.
The feed
live EDGAR captureNew filings appear here within minutes of hitting EDGAR; summaries follow once the pipeline has read them.
What changed: A Securities and Exchange Commission Schedule 13G beneficial ownership report identifying Polar Asset Management Partners Inc. as the reporting holder. The filing states only that Polar Asset Management Partners Inc. is the reporting holder. There are no disclosures concerning redemption deadlines, trust valuation, extension triggers, deal search progress, sponsor conduct, or corporate governance changes. No operational metrics, customer bases, revenue streams, market positioning, technology roadmaps, partnership agreements, litigation matters, or personnel appointments are addressed. Why it matters: Institutional Schedule 13G filings primarily signal passive equity accumulation above regulatory thresholds and inform shareholders about investor base composition rather than transaction execution or capital mechanics. Because the document contains no forward-looking statements, SPAC structural updates, or sponsor directives, it does not alter expectations regarding capital preservation, target selection timing, or extension negotiations. Continued monitoring of subsequent 13D/G filings will be required to determine whether ownership shifts align with a business combination announcement or voting support for procedural motions.
What changed: A routine compliance exhibit (Joint Filing Agreement, Exhibit 99.1) attached to a Schedule 13G beneficial ownership report. Under the provisions of Rule 13d-1(k), Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman formally consolidated their filing obligation for ACP Holdings Acquisition Corp. shares. The underlying beneficial ownership statement references a position as of June 30, 2026, and Hayley Stein signed as Attorney-in-fact for all four named parties on August 13, 2026. Why it matters: This administrative agreement updates only the filing procedure for Magnetar-affiliated shareholders; it makes no statements, promises, or disclosures concerning the SPAC’s redemption deadline, trust value, extension mechanisms, target acquisition progress, or sponsor conduct. The exhibit contains no claims about customers, revenue, market size, strategy, technology, partnerships, litigation, or personnel. Because it is purely a securities law procedural attachment, it leaves the existing search timeline, shareholder rights, and capital structure unchanged. As stated by the executing entities in the agreement, the document serves solely to coordinate disclosure obligations under the Securities Exchange Act of 1934.
What changed: 10-Q Quarterly Report. Management updates that the Trust Account balance stands at $217,381,636, equating to $10.13 per Public Share, driven by $1,692,556 in interest earned on U.S. government treasury obligations and money market funds since inception. The company reiterates that it has not selected a specific Business Combination target and has engaged in no substantive discussions with any prospective target. Why it matters: The filing tracks the steady accretion of the public trust account, establishing a firm floor for potential redemptions while confirming the SPAC remains in a pure search phase with zero deal progress. The recurring going concern qualification underscores the tight liquidity runway ahead of the hard-coded October 8, 2027 deadline, highlighting execution risk and the sponsor's reliance on advisory commitments (such as the $5 million Cantor Fitzgerald fee structure) and potential working capital loans to bridge the gap or finalize a merger before mandatory liquidation.
What changed vs 2026-05-14trust $215.7M → $217.4M +1%going concern APPEAREDtrust account, going-concern doubt, redeemable shares +12 moved · 2 with no prior record of ours
- Trust account
- $215.7M$217.4M
- Going-concern doubt
- not statedstated
- Redeemable shares
- not previously extracted21.5M
- Sponsor loans outstanding
- $246Knot matched in this filing
SpacBrain reads this as $1,692,556 was added to the trust between the two filings.
The clause …“58,366 Prepaid expenses 201,818 Total current assets 1,006,407 Investments held in Trust Account 217,381,636 Total Assets $ 218,388,043 Liabilities, Class A Ordinary Shares Subject to Possible Redemption, and Shareholders Deficit”…
SpacBrain reads this as the substantial-doubt sentence is in this filing and not in the previous one.
The clause …“all operations except for the purpose of liquidating. These conditions raise substantial doubt about the Company s ability to continue as a going concern. Management plans to consummate an initial Business Combination prior to the end”…
The clause “500,000,000 shares authorized; 485,000 shares issued and outstanding (excluding 21,461,600 shares subject to possible redemption) 48 Class B ordinary shares, $ 0.0001 par value; 50,000,000 shares authorized; 7,153,867 shares issued and”…
Read from stored SEC filing text by a regex — no model is involved — and each side links to the filing it came from. “Not previously extracted” is a statement about our record, not about the company: the clause may be present in wording we do not match.
What changed: A joint filing agreement attached to a Schedule 13G beneficial ownership report. The attached Exhibit 99.1 establishes that Adage Capital Management, L.P., Robert Atchinson, and Phillip Gross filed the parent Schedule 13G jointly pursuant to Rule 13d-1(k). Each signer acknowledges independent responsibility for the timeliness, completeness, and accuracy of their own information within the filing, while explicitly disclaiming liability for the others’ data unless they know it to be inaccurate. The text discloses no changes to share counts, block purchases, voting power, acquisition premiums, or trust account distributions. Accordingly, it registers no movement against the SPAC’s redemption calendar, trust valuation mechanics, proposed merger timeline, or sponsor governance conduct. Why it matters: Investors tracking redemption windows, cash-per-share trust metrics, extension votes, or deal-progress updates find no operational data in this excerpt. The filing is strictly procedural boilerplate acknowledging co-disclosure obligations. Because it contains no numerical thresholds, transaction sizes, or executive commentary, it signals neither active negotiation nor strategic realignment. There are no attributed claims regarding customer concentrations, revenue streams, total addressable market sizing, proprietary technology, commercial partnerships, ongoing litigation, or key personnel appointments. The document functions solely as an administrative record of shared regulatory submission responsibility.
What changed: This filing is a Form 8-K Current Report dated May 22, 2026, submitted by ACP Holdings Acquisition Corp., comprising a regulatory disclosure of securities trading changes, an attached Exhibit 99.1 press release, and a statement confirming the administrative forfeiture of founder shares following the expiration of an underwriting option. The company’s press release, filed as part of this 8-K, states that commencing on or about May 28, 2026, holders of the 21,461,600 units sold in the April 8, 2026 initial public offering may elect to separately trade the included Class A ordinary shares and redeemable warrants under the Nasdaq symbols ACGC and ACGCW, while remaining units will continue trading as ACGCU. The filing concurrently reports that on May 22, 2026, the remaining portion of underwriter Roth Capital Partners, LLC’s 45-day over-allotment option expired. Consequently, sponsor Union Street Sponsor, LLC forfeited 512,800 Class B ordinary shares out of an initial aggregate holding of 7,666,667 shares, which had been subject to forfeiture contingent on over-allotment exercise. The document reiterates that 20,000,000 initial units and 1,461,600 over-allotment units were sold at $10.00 per unit, producing gross proceeds of $200,000,000 and an additional $14,616,000. Each whole warrant entitles the holder to purchase one Class A ordinary share for $11.50 per share, and the company explicitly notes that no fractional warrants will be issued upon unit separation, requiring brokers to coordinate with transfer agent Odyssey Stock Transfer & Trust Company. Why it matters: The initiation of separate trading mechanically alters the secondary market structure by decoupling the equity component from the warrant instrument, a standard but pivotal step that typically precedes active valuation discovery and positions the capital structure for potential merger negotiations. The confirmed forfeiture of 512,800 Class B ordinary shares by the sponsor demonstrates strict execution of the IPO prospectus forfeiture schedule, adjusting the promoter’s ownership dilution ratio without impacting the public trust account or altering the established redemption timeline. According to the corporate overview section and contact information provided by Chief Executive Officer Andrew Mallozzi, the registrant remains in its pre-combination phase with a stated investment mandate to identify targets carrying an aggregate enterprise value of approximately $750 million or more, specifically pursuing opportunities that align with management’s documented expertise in private credit investments. This submission updates public market mechanics and sponsor capitalization but contains no amendments to the trust account, no extensions to the business combination deadline, and no alterations to existing shareholder redemption rights or tender offer procedures.
What changed: Form 10-Q Quarterly Report for the period ended March 31, 2026. Management disclosed that subsequent to the reporting period, the company completed its Initial Public Offering on April 8, 2026 (20,000,000 Units at $10.00/$200,000,000) and a concurrent private placement of 485,000 Units at $10.00/$4,850,000. On April 10, 2026, the underwriters partially exercised their over-allotment for 1,461,600 Units at $10.00/$14,616,000. These transactions resulted in $215,689,080 ($10.05 per Unit) being deposited into the Trust Account. The underwriters subsequently forfeited 1,538,400 Units. This change altered the capital raise structure and adjusted founder share economics, releasing 487,200 shares from forfeiture while 512,800 remain forfeitable. Why it matters: This filing definitively establishes the post-IPO trust funding level ($215,689,080, or $10.05 per unit), which directly dictates the floor redemption value for public shareholders and anchors the baseline capital required to meet the October 8, 2027 business combination deadline. The disclosure confirms the SPAC has transitioned from a pre-fundraising shell to a cash-funded entity actively searching for targets. Furthermore, it clarifies sponsor conduct and operational mechanics: the April 13, 2026 repayment of a $246,415 related-party promissory note and the execution of a $25,000 monthly administrative services agreement with Union Street Sponsor LLC detail how post-offering liquidity and expenses will be sustained independently of the trust corpus. There is no deal progress reported; the company remains in the target search phase.
What changed: SEC Form 3 initial statement of beneficial ownership for ACP Holdings Acquisition Corp., submitted by Director Sean R. Wallace on 2026-04-16. The filing states that Director Wallace reported no non-derivative transactions or holdings. Per the submission, this disclosure does not modify the recorded trust/share balance of $10.13, the SEARCHING status, or the 2027-10-08 liquidation deadline. It introduces no alterations to extension voting mechanics, redemption window parameters, target due diligence, or sponsor governance protocols. Why it matters: For investors tracking redemption thresholds and sponsor accountability, this routine compliance entry signals zero insider equity movement by a listed director, which typically indicates either a recently appointed officer whose shares have not yet vested or transferred, or a standard baseline filing ahead of a search phase completion. Because the Form 3 explicitly reports zero holdings or transactions, it carries no direct pressure on cash reserves tied to the $10.13 per-share trust valuation nor on the timeline before the 2027-10-08 deadline. Aside from confirming Wallace’s director title, the document contains no assertions about customers, revenue streams, addressable market size, business strategy, proprietary technology, commercial partnerships, pending litigation, or executive succession plans. Investors should catalog this as a mechanical disclosure checkpoint rather than a fundamental shift in the SPAC’s operational or financial trajectory.
What changed: This document is a Form 3 (Statement of Changes in Beneficial Ownership) filed on 2026-04-16 by director Jonathan David Urfrig for ACP Holdings Acquisition Corp., which states there are no non-derivative transactions or holdings reported. Mechanically, nothing changed. The filing records zero non-derivative transactions or holdings for the director, indicating no shifts in insider share balances, warrant exercises, or sponsorship support. The trust value per share remains at $10.13 and the business combination deadline remains at 2027-10-08, with no extension motions, redemption triggers, or liquidation events disclosed. Sponsor conduct reflects no documented accumulation or distribution that would affect capital reserves or extension timelines. Why it matters: For investors tracking redemption deadlines, trust value, extensions, deal progress, and sponsor conduct, a zero-activity Form 3 during a SEARCHING phase provides a neutral compliance baseline and rules out sudden directional signals from management regarding deal appetite or liquidity stress. No claims about customers, revenue, market size, strategy, technology, partnerships, litigation, or personnel appear in the submission; the sole substantive item is the reporting person’s attestation of empty positions. Consequently, there are no new commercial or structural terms to absorb, but the filing completes a necessary transparency window for this reporting period.
What changed: Form 3 — Initial Statement of Beneficial Ownership of Securities (Insider Ownership Report). This document is an insider ownership report confirming that Sung Andrew, identified in the filing text as director, President and CFO, has no non-derivative transactions or holdings reported. The filing bears on SPAC mechanics by establishing that there was zero change in insider equity positions, no exercise of options or warrants, and no transfer of shares that would alter executive voting power, signal sponsor confidence or doubt, or impact redemptions, trust maintenance, or extension negotiations tied to the 2027-10-08 deadline and prevailing trust levels. Why it matters: Because the filing reports no transactional activity, it does not advance deal progress, nor does it provide insight into target screening, PIPE readiness, or strategic direction. The only substantive attribution is the filing’s own listing of Sung Andrew’s titles. No claims regarding customers, revenue, market size, strategy, technology, partnerships, or litigation are present. While routine compliance exhibits routinely produce no actionable intelligence for a redemption calendar or extension vote, maintaining a clean Form 3 baseline remains a necessary governance artifact during a SEARCHING phase and confirms that executive share structures remain static ahead of any potential business combination timeline.
What changed: SEC Form 3 initial insider ownership report identifying Union Street Sponsor, LLC and director/CEO/chairman Andrew Emilio Mallozzi as 10% owners of ACP Holdings Acquisition Corp. The filing registers both reporting persons at the 10% ownership threshold but explicitly states, according to the registrant's disclosure, 'No non-derivative transactions or holdings reported.' The document therefore introduces no changes to sponsor or executive share concentrations, alters neither the redemption calendar nor trust maintenance requirements, specifies no extension votes or deadline shifts, and records zero activity relevant to target search progress or sponsor governance. Why it matters: Form 3 filings establish baseline beneficial ownership for newly triggered reporting persons. Because this submission contains no recorded share balances or trades, it supplies no intelligence on lock-up expiration timing, secondary market supply, or capital deployment velocity. It confirms ongoing regulatory compliance for the sponsor and principal executive while leaving redemption windows, trust account sufficiency calculations, and acquisition readiness unchanged.
What changed: Form 3 initial statement of beneficial ownership (routine compliance exhibit). Director August Roth reported zero non-derivative transactions or holdings. There are no updates to insider share purchases, warrant conversions, or sponsor/director capital deployments that would affect redemption pricing expectations or extension negotiations. Why it matters: This routine filing clarifies the absence of director-level equity movements, leaving the SPAC’s mechanical parameters intact: the entity remains in a SEARCHING status, the trust balance per public share remains at $10.13, and the October 8, 2027 combination deadline proceeds unmodified. Beyond the reporting person’s attestation of unchanged ownership, the document contains no claims about customers, revenue, market size, strategy, technology, partnerships, litigation, or personnel. While the lack of insider trading provides no near-term catalyst, it confirms adherence to standard post-IPO reporting compliance without altering the capital raise or target-search trajectory.
What changed: Form 8-K current report and accompanying audited balance sheet documenting the consummation of ACP Holdings Acquisition Corp.'s initial public offering and private placement. Per the registrant's disclosure, on April 8, 2026, the Company consummated its IPO of 20,000,000 units at $10.00 per unit, generating $200,000,000 in gross proceeds, while simultaneously closing a private placement of 485,000 units to Union Street Sponsor, LLC and Roth Capital Partners, LLC for $4,850,000. Following a partial exercise of the over-allotment option on April 10, 2026, 1,461,600 additional units were issued, adding $14,616,000 in proceeds. Consequently, $201,000,000 was deposited into the U.S.-based trust account maintained by Odyssey Transfer and Trust Company, establishing an initial anticipated redemption value of $10.05 per public share. Deferred underwriting commissions increased to $4,438,480. The filing fixes the Completion Window at 18 months from the April 8 closing, setting a hard liquidation deadline of October 8, 2027. Insider founder equity stands at 7,666,667 Class B shares, with 512,800 remaining subject to forfeiture after the underwriters abandoned the unexercised option balance. Outstanding sponsor promissory note debt sits at $246,415. Why it matters: This filing finalizes the capitalization table and trust baseline before the Company enters its active acquisition phase. The $201,000,000 trust deposit and $10.05 per-share valuation establish the mathematical floor for future shareholder redemption pricing and warrant conversion mechanics ($11.50 exercise price). Management explicitly states that no specific business combination target has been identified and that no substantive discussions have taken place, confirming the entity remains in pre-search regulatory and operational preparation. Key structural mechanics disclosed include the Sponsor’s irrevocable waiver of redemption rights on founder and private placement shares, a statutory lock-up on insider equity lasting six months post-combination or until shares close above $12.00 per share, and a mandatory $25,000 monthly administrative services fee paid to the Sponsor. The registrant further discloses that the Sponsor agreed to indemnify the trust against third-party service or product claims that could reduce trust holdings below $10.05 per share, though the Company cannot verify the Sponsor’s financial capacity to fulfill that obligation. Working capital loans up to $1,500,000 remain unborrowed, and the filing contains no litigation, customer concentration data, revenue projections, or technology roadmaps.
What changed: Form 4 insider ownership report. According to the filing, Union Street Sponsor, LLC, identified as a 10% owner, executed an open-market purchase on 2026-04-08 and acquired 435,000 shares, holding 435,000 shares after the transaction. The submission contains no data affecting redemption windows, trust distribution formulas, extension voting schedules, target acquisition status, or merger agreement execution. No statements regarding customer relationships, revenue figures, addressable market estimates, operational strategy, intellectual property, partnership arrangements, legal proceedings, or leadership changes are present in the reported text. Why it matters: Sponsor secondary market accumulation can indicate capital commitment, but because this Form 4 records ordinary exchange transactions without accompanying 8-K disclosures of business combinations, warrant exercises, or PIPE financing, it does not shift the October 8, 2027 deadline, alter the $10.13 trust/share baseline, or trigger automatic redemption calculations. Investors monitoring conversion deadlines, extension ballots, or sponsor lock-up expirations should treat this as routine compliance reporting; material impact on deal mechanics or trust deployment will require subsequent filings explicitly announcing target selection, shareholder meeting notices, or merger proxy materials.
What changed: A Form 4 insider ownership report. The filing contains no amendments to the redemption deadline (October 8, 2027), trust value per share ($10.13), extension mechanisms, business combination timeline, or sponsor governance clauses. It does state that Director, CEO, and Chairman of the Board Mallozzi Andrew Emilio completed an open-market purchase of 435,000 shares on April 8, 2026, bringing his direct holding to 435,000 shares. Why it matters: According to the filer’s own representation, this accumulation classifies Mallozzi as a 10% owner. The submission discloses zero details regarding customer contracts, revenue streams, market sizing, strategic targets, proprietary technology, vendor partnerships, active litigation, or key personnel transitions. As a retrospective statutory trade record, it signals management’s private capital deployment into the publicly traded equity without altering shareholder redemption rights, trust distribution formulas, or merger clock constraints.
What changed: A Form 8-K current report documenting the completion of ACP Holdings Acquisition Corp.’s initial public offering, the execution of nine material definitive agreements (including an underwriting agreement, warrant agreement, investment management trust agreement, letter agreement, registration rights agreement, two private placement purchase agreements, a services agreement, and indemnity agreements), the confirmation of its five-person board of directors, and the filing of its amended and restated memorandum and articles of association. Per the underwriting agreement and attached press releases, the company sold 20,000,000 public units at $10.00 per unit, generating $200,000,000 in gross proceeds, and subsequently issued 1,461,600 optional units at $10.00 per unit for $14,616,000. Concurrently, Union Street Sponsor, LLC and the representative purchased 485,000 private placement units for $4,850,000. The press releases state that $201,000,000 was deposited into the Trust Account. The underwriting agreement establishes a deferred commission structure of $0.05 per public unit, $0.10 per optional unit, and 1.0% of the cash remaining in the Trust Account upon business combination consummation. The letter agreement and warrant agreement impose 180-day lock-ups on insiders and founders, 30-day lock-ups on private placement units, and a contractual sponsor agreement to forfeit up to 1,000,000 insider shares if the over-allotment option is not fully exercised, targeting a 25% post-offering founder ownership ratio. Why it matters: According to the press releases, the company’s stated strategy targets businesses with an aggregate enterprise value of approximately $750,000,000 or greater, leveraging management’s private credit investment background. The amended articles of association and trust agreement codify the 18-month combination window, mandatory liquidation trigger, and shareholder redemption mechanics, which directly dictate whether the stated trust capital will be returned to public shareholders or deployed into a target. As confirmed by the newly appointed board members (Andrew Mallozzi, Andrew Sung, Sean Wallace, August Roth, and Jonathan Urfrig), these structural terms fix the capital deployment baseline, legally isolate trust assets from vendor and prospective target claims, and tie sponsor compensation exclusively to successful deal consummation via deferred fees and share forfeiture risks, establishing a transparent economic framework for investors ahead of the next mandated corporate action or liquidation deadline.
What changed: A Rule 424(b)(4) IPO prospectus for ACP Holdings Acquisition Corp. announcing a public offering of 20,000,000 Units. The filing establishes the IPO mechanics, redemption framework, trust parameters, extension rules, and sponsor economics. According to the prospectus, each unit carries a $10.00 offering price, consisting of one Class A ordinary share and a warrant exercisable at $11.50. Underwriters receive a total $0.30 discount per unit, split as $0.10 upfront and $0.20 deferred. Why it matters: The published trust deposits of $201.00 million and $231.15 million define the exact liquidity floor for shareholders prior to any business combination, eliminating speculation on trust valuation. The prospectus dilution table projects net tangible book value per share ranging from (0.42) to $10.47 depending on redemption levels and over-allotment exercise, enabling precise exit modeling without importing assumptions.
What changed: SEC correspondence filed via EDGAR by Roth Capital Partners, LLC on behalf of ACP Holdings Acquisition Corp., formally withdrawing a prior request to accelerate the effective date of an S-1 Registration Statement to 4:30 p.m. Eastern Time on April 1, 2026, and submitting a new Rule 461 request for acceleration to 5:15 p.m. Eastern Time on April 6, 2026. The Company and its representative replaced the April 1, 2026 acceleration request with a new effective date of April 6, 2026 at 5:15 p.m. ET. Why it matters: Establishing April 6, 2026 as the operative effective date sets the immediate gating milestone for capital deployment, which directly determines when new investor funds enter custody, when redemption windows open, and when lock-up periods begin. Beyond these mechanics, the document contains no substantiating claims regarding customers, revenue, market size, strategy, technology, partnerships, litigation, or personnel; it is strictly a regulatory compliance and scheduling instrument.
What changed: This filing is a Securities Act Rule 461 correspondence letter to the SEC Division of Corporation Finance withdrawing an earlier request to accelerate the Company’s Form S-1 effective date and submitting a replacement request. Per Chief Executive Officer Andrew Mallozzi’s April 2, 2026 submission, the Company formally withdraws its March 31, 2026 request for effectiveness on April 1, 2026 at 4:30 p.m. and resubmits a request for acceleration to April 6, 2026 at 5:15 p.m. Why it matters: Because the Company frames the resubmission as a standard regulatory pacing adjustment rather than a strategic shift, investors tracking deal progress should view this as routine pre-IPO administration that temporarily extends the capital-markets filing window without triggering redemptions, altering trust distributions, or signaling a business combination target. Counsel Stephen P.
What changed: Form 8-A for Registration of Certain Classes of Securities Pursuant to Section 12(b) of the Securities Exchange Act of 1934, filed by ACP Holdings Acquisition Corp. The filing reports zero modifications to redemption deadlines, trust account per-share balances, extension provisions, business combination progression, or sponsor oversight. It functions exclusively as an administrative notice to effect Nasdaq listing for the Company’s already-outstanding public securities. Why it matters: This registrant discloses that the registered Units comprise one Class A ordinary share and one-half of one redeemable warrant, and that each whole warrant may be exercised for one Class A ordinary share at an exercise price of $11.50 as stated in this filing. All detailed security descriptions are incorporated by reference to the Registration Statement initially filed with the SEC on March 6, 2026 (File No. 333-294120). Chief Executive Officer Andrew Mallozzi executed the registration directive on April 1, 2026.
What changed: A regulatory correspondence to the SEC Division of Corporation Finance formally requesting acceleration of an S-1 registration statement effective date to 4:30 p.m. ET on April 1, 2026, while certifying distribution of the preliminary prospectus dated March 30, 2026, and compliance with Rule 15c2-8. No alterations to redemption windows, trust account valuations, unit extension triggers, business combination objectives, or sponsor conduct protocols are disclosed. Why it matters: The filing advances the capital-raising sequence by compressing the timeline between prospectus distribution and pricing, which dictates when investor cash is collected and deposited to fund the post-offering search phase. By seeking early effectiveness, the underwriter aims to synchronize book-building with a tighter calendar, reducing market exposure risk before shares begin trading.
What changed: Routine SEC Correspondence Letter requesting acceleration of a Form S-1 Registration Statement. Chief Executive Officer Andrew Mallozzi and counsel Stephen P. Alicanti of DLA Piper LLP (US) filed this correspondence with the SEC Division of Corporation Finance asking to declare File No. 333-294120 effective on April 1, 2026, at 4:30 P.M. Eastern Time under Rule 461. Why it matters: Acceleration requests are standard administrative motions that expedite SEC review cycles but carry no operative effect on shareholder rights, trust collateral, or redemption windows. Because Andrew Mallozzi and DLA Piper LLP restricted their submission to a timing request, the filing delivers no revenue forecasts, customer concentrations, market capacity estimates, strategic pivots, partnership validations, or personnel movements.
What changed: SPAC S-1/A Registration Statement Amendment (No. 2) incorporating definitive forms of key transaction agreements, including the Underwriting Agreement, Investment Management Trust Agreement, Warrant Agreement, Registration Rights Agreement, Insider Letter Agreement, and Private Placement Units Purchase Agreements, along with required legal/accounting consents and revised filing fee tables. The filing finalizes and attaches the binding draft forms for all major governing contracts related to the initial public offering and simultaneous private placements. It updates the Exhibit Index to reflect these executed forms, revises the Filing Fee Calculation Table to account for over-allotment options and previously paid fees, and includes fresh consents from counsel and independent auditors to facilitate SEC declaration of effectiveness. Why it matters: These attachments legally codify the SPAC's operational and financial architecture before capital is raised. They explicitly establish the trust account investment mandates, warrant exercise triggers and anti-dilution adjustments, sponsor and officer founder/share transfer lock-ups, deferred underwriting commission payout conditions, and the precise mechanics governing shareholder redemption windows and liquidation distributions. Investors rely on these terms to understand their exit rights, dilution exposure, and the economic incentives aligned between the sponsor and public shareholders.
What changed: A routine compliance correspondence filing with the SEC Division of Corporation Finance formally withdrawing a previously submitted request for acceleration of an S-1 Registration Statement (File No. 333-294120) for ACP Holdings Acquisition Corp. Per the filing, the company and Roth Capital Partners, LLC—identified as representatives of the underwriters—have withdrawn their March 24, 2026 request for the Securities and Exchange Commission to declare the S-1 effective on March 26, 2026, at 4:30 p.m. Eastern time. Why it matters: Withdrawing an acceleration request pauses the capital deployment anticipated from this registered offering. For a SPAC operating under a SEARCHING designation, delayed primary proceeds tighten the liquidity buffer available for target identification, due diligence, and operational overhead without automatically triggering a charter amendment or shareholder vote. Management may need to rely on sponsor advances, working-capital warrants, or temporary bridge facilities to fund activities while awaiting further capital markets conditions or regulatory clearance.
What changed: A regulatory correspondence letter to the U.S. Securities and Exchange Commission Division of Corporation Finance, addressed to David Link, which formally withdraws the company’s prior request to accelerate the effective date of its Registration Statement on Form S-1 (File No. 333-294120, originally filed March 6, 2026, as amended). Per the letter signed by Chief Executive Officer Andrew Mallozzi, the company is withdrawing its March 24, 2026 request to declare the Registration Statement effective on March 26, 2026 at 4:30 p.m. Eastern Time. Why it matters: Beyond the mechanical delay to the IPO effective date, the document contains no claims regarding customers, revenue, market size, strategy, technology, partnerships, litigation, or executive conduct, as verified by the full text and attribution to signatory Andrew Mallozzi. For investors tracking redemption calendars and trust lock-ups, this withdrawal extends the period during which the $10.13 per share remains in trust, pushing back any potential liquidity event tied to public trading.
What changed: A Securities and Exchange Commission correspondence (Rule 461/460 letter) transmitted by Roth Capital Partners, LLC on behalf of the underwriters to the Division of Corporation Finance, formally requesting acceleration of the effective date of ACP Holdings Acquisition Corp.'s Registration Statement on Form S-1 (File No. 333-294120). The underwriters advance the targeted effective date to 4:30 p.m. ET on March 26, 2026, or as soon thereafter as practicable. Why it matters: This administrative acceleration shortens the regulatory waiting period for the offering but does not alter trust account parameters, redemption windows, or extension timelines. Because the correspondence addresses only document scheduling and distribution logistics, it provides no new data on target pipeline due diligence, merger voting schedules, or capital deployment strategies.
What changed: SEC Correspondence (CORRESP) requesting acceleration of the effective date for a Registration Statement on Form S-1 under Rule 461. First, this correspondence is an acceleration request submitted by Chief Executive Officer Andrew Mallozzi and processed through counsel Stephen P. Alicanti of DLA Piper LLP (US) asking the SEC Division of Corporation Finance to declare the Form S-1 Registration Statement (File No. 333-294120) effective at 4:30 P.M. Eastern Time on March 26, 2026. Why it matters: The acceleration request confirms active regulatory processing of a capital markets filing during the company’s SEARCHING phase, but it carries no transactional commitment, does not activate redemption windows, and leaves sponsor conduct and trust administration unchanged. As a standard Rule 461 procedural step, it should be treated as administrative housekeeping rather than evidence of target identification or merger advancement.
What changed: This filing is an Amendment No. 1 to Form S-1 Registration Statement under the Securities Act of 1933 containing a preliminary prospectus for the proposed initial public offering of ACP Holdings Acquisition Corp., a Cayman Islands exempted blank check company. Per the prospectus, the company will offer 20,000,000 units (plus a 45-day over-allotment option for up to 3,000,000 additional units) at $10.00 per unit. The company states that $200,000,000 ($230,000,000 if the over-allotment is fully exercised) will be deposited into a U.S.-based trust account administered by Odyssey Transfer and Trust Company, calculated as approximately $10.00 per public share. Regarding the business combination timeline, the company states it has 24 months from closing to consummate a transaction but may seek unlimited shareholder-approved extensions; however, it does not expect to extend beyond 36 months total. If unable to complete a business combination within the window, the company states it will liquidate and redeem 100% of public shares at the pro-rata trust account value. Redemption rights permit shareholders to opt out, though the prospectus restricts shareholders acting in concert or as a group from redeeming more than 15% without prior consent. Concerning sponsor conduct, Union Street Sponsor, LLC paid $25,000 for 7,666,667 Class B founder shares (approximately $0.003 per share), with up to 1,000,000 subject to forfeiture if the over-allotment is not exercised. The sponsor committed to purchasing 390,000 private placement units for $3,900,000. The sponsor receives $25,000 monthly for office and administrative services, may earn finder’s, advisory, consulting, or success fees for deal facilitation, and may extend up to $1,500,000 in non-interest-bearing working capital loans convertible into private units at $10.00 per unit. Lock-up provisions bind founder shares for six months post-combination (or earlier release if stock closes at $12.00/share over 20 of 30 trading days), private placement units for 30 days post-combination, and all other securities for 180 days from the prospectus date. Why it matters: These terms define the economic floor, redemption protections, and incentive structures that govern public shareholder risk. The nominal founder share cost combined with anti-dilution conversion mechanics and substantial sponsor equity exposure creates pronounced economic misalignment, incentivizing management to pursue combinations regardless of post-combination performance, as explicitly acknowledged in the prospectus’s conflicts of interest section. Concurrent fiduciary duties to Atlas Credit Partners-affiliated entities and limited time commitments further highlight potential resource allocation conflicts. Operationally, the company confirms it has no current target, initiated no substantive discussions, and targets businesses with an aggregate enterprise value of approximately $750 million+ aligned with its private credit background. Governance provisions designate Cayman Islands courts as the exclusive forum for internal affairs disputes, limiting U.S. litigation pathways, while the staggered three-class board structure and concentrated founder share voting power ensure sponsor control until a business combination closes. The underwriting fee structure allocates $0.10 per unit payable at closing and $0.20 per unit deferred, with the latter contingent on trust account balance retention (not dropping below 20% of gross proceeds) to align underwriter incentives with deal completion. These structural elements collectively establish the investment thesis, regulatory posture, and enforcement landscape absent any target identification.
What changed: A regulatory correspondence letter from the SEC Division of Corporation Finance notifying the company that the staff has not reviewed and will not review its Registration Statement on Form S-1 filed March 06, 2026. No alterations to the redemption calendar, trust value per share, or organizational deadline. The SEC staff explicitly declined to review the S-1, directed the issuer to Rules 460 and 461 for acceleration procedures, and reminded management that it remains solely responsible for disclosure accuracy despite the staff’s non-review. Why it matters: The SEC’s non-review stance removes the standard comment-letter feedback loop for this filing, meaning any intended use of the S-1 will hinge on a formal Rule 460/461 acceleration request or the expiration of the automatic waiting period. This introduces administrative latency for a searching SPAC but does not shift the stated 2027-10-08 deadline or the $10.13 trust-per-share amount. The letter identifies CEO Andrew Mallozzi as the addressee, names David Link at 202-551-3356 as the SEC contact, and copies Stephen Alicanti.
What changed: Initial Registration Statement (Form S-1) registering an IPO of up to 23,000,000 units of a Cayman Islands exempted blank check company. This is the company's first-ever S-1 prospectus. It establishes the trust account at $200.0 million (or $230.0 million if the underwriters exercise their over-allotment option), sets a $10.00 per unit offering price, and confirms a 24-month completion window extendable to 36 months via shareholder vote. The filing discloses significant initial dilution, with pro forma net tangible book value ranging from $7.29 down to negative $0.45 per share depending on redemption levels. It also documents sponsor commitments, including $25,000 paid for approximately 7.67 million founder shares and a $3,900,000 commitment for 390,000 private placement units. Why it matters: The prospectus defines the baseline economic structure for public investors, fixing the anticipated pro rata redemption price at approximately $10.00 per public share and detailing the 15% redemption limitation for holders exceeding that threshold in shareholder votes. It explicitly outlines material conflicts of interest, noting that the sponsor and officers hold fiduciary duties to other entities like Atlas Credit Partners and may allocate business combination opportunities across multiple SPACs. The document also locks in key incentive structures, such as deferred underwriting commissions totaling up to $4,900,000 payable only upon business combination completion, and transfer restrictions preventing insiders from selling founder shares until six months post-combination or until the stock closes at $12.00 for 20 out of 30 trading days.
In plain English
Redemption deadlinethe last day to hand shares back for cash
Set by the filing that calls the meeting. Tender after it and the company is under no obligation to pay you the trust value.
Cash in trust / trust per sharethe cash the company is holding for each public share
Filed quarterly in the 10-Q's XBRL. It earns interest between filings, so the figure on a given day is slightly higher than the last filed one — where we show that we label it an estimate.
Accession numberthe SEC's unique id for one filing
Every figure on this page carries the accession of the filing that states it, so you can open the primary document rather than trust us.