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Acropolis Infrastructure Acquisition Corp.

ACRO · NYSE

Trust settledFinished

NO ACTION REQUIRED

Nothing left to do

The cash went back to shareholders and the company wound up. There is no deadline left to miss.

No price history on file yet — daily closes accumulate from the market data feed.

Trust settled · There is no line to draw here. This vehicle has finished: the cash was paid back or spent closing the deal, so the last filed figure describes an account that no longer exists and would be a floor under nothing.

SpacBrain’s read

Trust settled

The trust was liquidated and paid back to holders pro rata — the floor was honoured and the SPAC has wound up, so there is nothing left to claim.


In plain terms

What it is
A SPAC from Acropolis Infrastructure Acquisition Sponsor, L.P., listed on NYSE in July 2021.
What it's doing now
It never completed a purchase. The company wound up and the cash in the account went back to shareholders — the ordinary ending when a SPAC runs out of time. No agreed deal for it is on file with us, so we cannot say whether one was ever announced and later fell through.
What you should know
About 77% of the shares sold at listing have already been cashed in, leaving 8.0M. This SPAC has finished. The cash was paid back to shareholders and the company wound up, so there is nothing left to claim — the money went where the charter said it would.

At a glance

Where it stands
Liquidated
Deal
none — it wound up and returned the cash instead
Industry
no filing we hold states a sector this SPAC restricted its search to
Deal value
no deal to value — it wound up instead
Price vs cash at settlement
no live price on file
Cash in trust when it settled
not yet extracted into a snapshot — the filings below may state it
the last trust total filed while this was still a SPAC — the account has since been paid out or used to close the deal
IPO
9 July 2021
size not on file · 100.0% of each $10 unit into trust
Headquarters
9 WEST 57TH STREET, 43RD FLOOR, NEW YORK, NY, 10019
registered in Delaware
Lead underwriter
not extracted from the prospectus yet
Key officers
PATEL SANJAY H (Chief Executive Officer) · Deason Ian (Director) · Foo Dylan (Director)
Listed securities
ACRO common
Cash held per sharenot filed for this window

This vehicle has finished, so there is no window to file a cash-per-share figure for and none will follow. No estimate is shown in its place.

Shares already handed back76.81%

At the 23 June 2023 event.

0000950142-23-001815opens on sec.gov in a new tab

Next date that mattersno dated event on file

Nothing dated is on file. That is an absence in the record, not a statement that nothing is coming.

Yield to redemption

Nothing left to redeem — no yield to compute.

This SPAC has finished — its trust was paid back or used to close the deal, so there is nothing left to redeem and no yield to compute. A yield to redemption is a claim that you can hand these shares back for the trust cash. That account is closed, so this page will not print a number here.


What happened to the cash

The reasoning behind the verdict above, in the order the filings establish it.

  1. The trust was liquidated and paid back to holders pro rata — the floor was honoured and the SPAC has wound up, so there is nothing left to claim.
  2. 76.81% of the public shares were handed back at the 23 June vote — the holders who wanted cash rather than shares in the new company took it then.

What has happened, and what is coming

2 dated milestones

Every dated step from the day it listed to the next date you may have to act on. Where you have to do something, the day your broker needs the instruction is marked too.

  1. 9 July 2021IPOpassed

    IPO size not on file

  2. 23 June 2023Shares handed backpassed0000950142-23-001815opens on sec.gov in a new tab

    76.8% of the public float took the cash


Who has already taken their money back

1 filed event

Each time shareholders were offered their cash back, some took it. Heavy cash-outs drain the account and shrink the number of shares left — whatever remains has to carry the deal.

Worst single event

76.81%

of the public float walked at a single vote

Shares redeemed, all events

26.50M

≈77% of the earliest known float

Every figure below is stated in the linked filing; nothing here is estimated.


The score

deterministic, from filed fields

ACRO is not in the scored universe, so no score is shown. A withheld score is a fact about the record, not a verdict about the company.

Asymmetric return scoreNeither a price nor a cash-per-share figure is on file for this vehicle, and the score is a ratio between the two. Nothing is estimated to fill the gap.

The score is only published for names that carry both a price and a filed cash-per-share figure — 292 of the tracked fleet today. The rest keep an empty dial rather than a modelled one, and fill in by themselves as the fields land.

See the names that are scored, and how


The company

from SEC filings
Read the full profile

Acropolis Infrastructure Acquisition Corp. (NYSE: ACRO) was a blank-check company that priced its initial public offering on July 9, 2021, per 424B prospectus 0001104659-21-090557. The company was registered with SEC CIK 0001847891 under SIC industry code 6770. On December 5, 2023, it filed an 8-K (accession 0000950142-23-002895) announcing that it would redeem all of its outstanding shares of Class A common stock, effective as of December 19, 2023. The company thereby liquidated and returned the trust cash to its shareholders.


Material findings

from the full read of every filing

Every document this company files gets read whole — body and exhibits. These are the ones the read flagged as material, newest first, each citing its filing.

  • A board decision to wind up rather than pursue a combination, with a redemption effective date fifteen days out. The 8-K itself states no per-share redemption price, no trust balance and no treatment of the warrants — those terms, if given, are in the attached press release and not in this report.

  • The redemption figures are the story: holders of 26,499,201 public shares redeemed, leaving 8,000,799 outstanding, and the filing expects approximately $82,262,411 to remain of the approximately $355,377,322 in the trust on the record date — roughly 77% of the trust withdrawn at a single meeting. The board also retains the right to ABANDON any or all of the amendments and not implement the extension, without any further stockholder action.


Filings

live EDGAR feed

Everything this company has filed with the SEC recently, newest first, each with a plain summary of what changed and why it matters.

Show the other 10 filings
  • What changed: Item 8.01 — liquidation. On December 4, 2023 the board of Acropolis Infrastructure Acquisition Corp. determined to liquidate and dissolve the company in accordance with its Amended and Restated Certificate of Incorporation, as amended. The same day it issued a press release announcing it will redeem all outstanding shares of Class A common stock, par value $0.0001, effective as of December 19, 2023. The press release is attached as Exhibit 99.1. Why it matters: A board decision to wind up rather than pursue a combination, with a redemption effective date fifteen days out. The 8-K itself states no per-share redemption price, no trust balance and no treatment of the warrants — those terms, if given, are in the attached press release and not in this report.

  • What changed vs 2023-08-14trust $82.6M → $83.3M +1%
    trust account, combination deadline, going-concern doubt +11 moved · 3 with no prior record of ours
    Trust account
    $82.6M$83.3M

    SpacBrain reads this as $676,260 was added to the trust between the two filings.

    The clause “424,370 Total current assets ​ ​ 661,904 ​ ​ 530,763 ​ ​ ​ ​ ​ ​ ​ Investments held in Trust Account ​ ​ 83,271,718 ​ ​ 348,005,679 Total assets ​ $ 83,933,622 ​ $ 348,536,442 ​ ​ ​ ​ ​ ​ ​ LIABILITIES, TEMPORARY EQUITY AND STOCKHOLDERS’”…

    Combination deadline
    2024-07-13 · unchanged

    The clause …“to redeem 100 % of such Public Shares if it has not consummated an Initial Business Combination by July 13, 2024 (the “Completion Window”); or (iii) the redemption of 100 % of the Public Shares if the Company is unable to complete an”…

    Going-concern doubt
    stated · unchanged

    The clause “14-15, “Disclosures of Uncertainties about an Entity’s Ability to Continue as a Going Concern,” management has determined that if the Company is unsuccessful in consummating an Initial Business Combination, the mandatory liquidation and”…

    Redeemable shares
    8.00M · unchanged

    The clause “1 par value; 800,000,000 shares authorized, none issued and outstanding (net of 8,000,799 and 34,500,000 shares of Class A common stock subject to possible redemption) as of September 30, 2023 and December 31, 2022 ​ — ​ — Class B common”…

    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 vs 2023-05-12trust $352.8M → $82.6M -77%shares 34.5M → 8.00M -77%
    trust account, redeemable shares, combination deadline +12 moved · 2 with no prior record of ours
    Trust account
    $352.8M$82.6M

    SpacBrain reads this as $270,167,799 left the trust between the two filings.

    The clause …“424,370 Total current assets ​ ​ 34,575 ​ ​ 530,763 ​ ​ ​ ​ ​ ​ ​ Investments held in Trust Account ​ ​ 82,595,458 ​ ​ 348,005,679 Total assets ​ $ 82,630,033 ​ $ 348,536,442 ​ ​ ​ ​ ​ ​ ​ LIABILITIES, TEMPORARY EQUITY AND STOCKHOLDERS’”…

    Redeemable shares
    34.5M8.00M

    SpacBrain reads this as 26,499,201 shares are no longer redeemable.

    The clause “1 par value; 800,000,000 shares authorized, none issued and outstanding (net of 8,000,799 and 34,500,000 shares of Class A common stock subject to possible redemption) as of June 30, 2023 and December 31, 2022 ​ — ​ — Class B common”…

    Combination deadline
    not previously extracted2024-07-13

    The clause …“to redeem 100 % of such Public Shares if it has not consummated an Initial Business Combination by July 13, 2024 (the “Completion Window”); or (iii) the redemption of 100 % of the Public Shares if the Company is unable to complete an”…

    Going-concern doubt
    stated · unchanged

    The clause “14-15, “Disclosures of Uncertainties about an Entity’s Ability to Continue as a Going Concern,” management has determined that if the Company is unsuccessful in consummating an Initial Business Combination, the mandatory liquidation 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: Items 5.03 and 5.07: At Acropolis Infrastructure Acquisition Corp.'s special meeting on June 23, 2023 — 36,830,508 shares, about 85.40% of those outstanding on the May 30 record date, present — stockholders approved charter amendments extending the business-combination date from July 13, 2023 (or October 13, 2023 if an agreement had been signed by then) to July 13, 2024; permitting the board in its sole discretion to wind up and redeem all public shares before that date; and eliminating the $5,000,001 net-tangible-assets Redemption Limitation. They were filed in Delaware the same day. Why it matters: The redemption figures are the story: holders of 26,499,201 public shares redeemed, leaving 8,000,799 outstanding, and the filing expects approximately $82,262,411 to remain of the approximately $355,377,322 in the trust on the record date — roughly 77% of the trust withdrawn at a single meeting. The board also retains the right to ABANDON any or all of the amendments and not implement the extension, without any further stockholder action.


The record

The reference detail — how the shares were structured at listing, how thinly they trade, and where the company is registered.

Show the reference detail

Unit structure

Cash in trust at IPO$10.00

Unit: U = S + W/3 · 100.0% of the $10 unit

from 424B4 0001104659-21-090557

Trading & liquidity

Average daily volume (20d)no volume reported on the bars we hold
Average daily $ volumeneeds both volume and a live price
Range over the bars heldnot enough price history
Total cash in trustthe trust total is not in the last XBRL stamp

Company profile

Industry (SIC)Blank Checks (6770)
Registered inDelaware
Exchange · CIKNYSE · 0001847891

All filings on EDGARopens on sec.gov in a new tab

Directors & officers


Institutional holders

from SC 13G/13D

Funds that have declared a stake above 5%. Heavy ownership by arbitrage funds usually means heavy cash-outs at the next vote.

Show the declared stakes

7 filers with a stake on file · 0 re-affirmed in the last 12 months. A stake with no amendment since is the filer’s last word on it, not proof it is still held — and percentages filed in different years are percentages of different floats, because this vehicle’s share count collapses at every redemption.

One line per filer, not per reporting person: a joint schedule names the management company, its funds and often the individual who controls them, and all of them report the same shares. Click a name for that filer’s whole footprint across every SPAC it has declared a stake in.


Sources on file

harvested pages, kept in full

Every public page we have read about this company, stored in full so a source can never go missing.

Show the sources

39 full SEC filing texts archived — searchable, never lost.


In plain English

tap a term to open it

Every piece of jargon this page could have used, and what it actually means.

Open the plain-English guide
No floor / floorlessthe cash guarantee is gone — the price is unprotected

A SPAC's downside protection is not the cash in trust; it is your right to demand that cash. Once the redemption window closes, the cash stays with the company and the share can trade anywhere.

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.

Broker action datethe day your broker needs the instruction — earlier than the official date

Brokers batch redemption instructions to the transfer agent, so the practical cutoff is roughly two business days before the published deadline. This is the date that actually costs people the floor.

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.

Trust discountbuying below the cash held for you

Only meaningful while a redemption right exists. On a floorless name the same arithmetic is not a discount, it is the market pricing distress, and this product will not call it a yield.

Dilutionhow much of the company new shares take from you

Sponsor promote, PIPE shares, warrants and rights all issue stock that did not pay $10 for it. The headline deal value is before that; the effective value is after.

Pro-forma equitywhat the company is valued at once the deal closes

The combined company's equity value assuming the announced terms and the redemptions that have actually happened.

ARShow much upside you get per unit of downside

SpacBrain's asymmetric-return score. It is deterministic — the same inputs always produce the same number — and it is capped, not zeroed, when the floor is gone.

De-SPACthe day the SPAC becomes the real company

The shares stop being a claim on a pot of cash and start being equity in an operating business. Roughly 80% of recent de-SPACs traded below $10 within a year.

Outside datethe contractual long-stop for closing the deal

A deadline between the SPAC and its target, not between the SPAC and you. It confers no right to cash, which is exactly why it must never be counted as a redemption window.

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.

Accreted NAV (estimate)the last filed cash figure, plus the interest it should have earned since

A model, not a filing: last filed value compounded at the 3-month T-bill for the days elapsed. Always shown in italic with the word estimate, and never printed beside a filed number without it.


Ask the brain

from its filings
Data provenance & audit trail2 internal entries

Written by SpacBrain’s data agents whenever a figure is captured, corrected or flagged, and kept verbatim so every number on this page can be traced back to the filing that states it. This is a running log, not the current record: an early entry may be superseded by a later correction — the panels above always hold the current values.

ACRO — company record
UNIVERSE-HISTORY2026-08-16

admitted from the HISTORICAL census (EDGAR's SIC 6770 registrant list, walked in full: 3,325 registrants, 1,167 of which ever priced an IPO). The live discovery job cannot reach this registrant — it reads the filing tape, and this one stopped filing. Admission rule: src/lib/universe-admit.ts. SIC 6770 (Blank Checks); 424B 0001104659-21-090557 priced 2021-07-09; common ticker ACRO off 8-K 0000950142-23-002895 (2023-12-05); lifecycle EXITED. Ending PROVEN, not inferred: LIQUIDATED per 8-K 0000950142-23-002895 (2023-12-05) — announced redemption of all public shares: “…will redeem all of its outstanding shares of Class A common stock, par value $0.0001, effective as of December 19, 2023. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description 99.1 Press R…”. ipoSizeM and deadline left NULL: gross-proceeds prose conflates the over-allotment with the offering, and a charter deadline belonging to a vehicle that has ended is a date nobody can act on. ipoDate is the 424B pricing date.

SPONSOR-ID2026-08-14

sponsor "Acropolis Infrastructure Acquisition Sponsor, L.P." sourced from prospectus definition (10-K/A) acc 0001104659-23-041790.