YSAC SEC filings, in plain English
Everything Yellowstone Acquisition Co has filed with the SEC that we hold — 40 filings, newest first, 9 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.
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What changed: Sky Harbour Group Corp filed an 8-K on August 26, 2026, reporting the closing of a registered direct offering. The Company sold 1,000,000 shares of Class A common stock to M-COR Capital LLC at $10.00 per share, receiving aggregate gross proceeds of $10.0 million before expenses. The transaction was conducted under a shelf registration statement (File No. 333-278275) declared effective on April 10, 2024. Proceeds are intended for general corporate purposes. Tal Keinan, CEO, signed the filing. Why it matters: This filing confirms the completion of a capital raise that increases Sky Harbour's cash position by $10.0 million, which management intends to use for general corporate purposes. It also identifies M-COR Capital LLC as a new investor in this specific tranche and validates the legal opinion regarding the shares' validity via Exhibit 5.1.
What changed: Sky Harbour Group Corp filed an 8-K on August 21, 2026, announcing a Stock Purchase Agreement with M-COR Capital LLC to sell 1,000,000 shares of Class A common stock at $10.00 per share in a registered direct offering. The company expects to close the transaction on or before August 26, 2026, and receive aggregate gross proceeds of approximately $10.0 million. Why it matters: As Yellowstone Acquisition Co (YSAC) is closed, this filing does not contain redemption deadlines, trust value updates, or extension notices relevant to YSAC shareholders; it reports corporate activity by the post-merger entity Sky Harbour Group.
What changed: Sky Harbour Group Corporation filed an 8-K on August 20, 2026, to furnish an Investor Presentation dated August 21, 2026, under Item 7.01 Regulation FD Disclosure. Why it matters: The filing contains no redemption deadlines, trust value updates, or extension notices for the closed SPAC YSAC; it solely provides a non-binding summary of company information via an attached presentation.
What changed: Item 1.01 8-K of Sky Harbour Group Corporation (NYSE: SKYH). On August 10, 2026 the company entered into a Stock Purchase Agreement with certain investors to sell 4,000,000 shares of Class A common stock in a registered direct offering at $10.00 per share; the offering closed on August 12, 2026 and generated aggregate gross proceeds of $40.0 million before expenses, which the company intends to use for general corporate purposes. Why it matters: $40.0 million of new primary equity was issued at a fixed $10.00 per share, and an existing large holder sold a further 360,000 shares at the same price in a separate secondary transaction from which the company receives nothing.
What changed: Exhibit 99.1 to an 8-K of Sky Harbour Group Corporation (NYSE: SKYH): the Q2 2026 results and business update. Constructed assets and construction in progress exceeded $393 million at quarter end, up $65 million year to date. Consolidated revenues rose approximately 50% year over year and 13% sequentially, and net cash provided by operating activities was approximately $0.5 million against $3.9 million used in Q1 2026 — which the company states is the first quarter of recurrent positive operating cash flow in its history. Why it matters: Guidance is expressed as an annualized run rate at a point in time rather than a full-year figure, and the reaffirmed range implies growth from the $39.4 million Q2 run rate. Positive operating cash flow of $0.5 million is a first for the company on its own statement, against $658.9 million of liabilities on the balance sheet.
What changed: Q2 2026 10-Q of Sky Harbour Group Corporation (NYSE: SKYH). Total revenue was $9,855 thousand for the quarter versus $6,588 thousand a year earlier — rental $7,030 thousand and fuel $2,825 thousand — and $18,580 thousand for the six months versus $12,180 thousand. Total expenses were $16,623 thousand versus $14,116 thousand, giving an operating loss of $(6,768) thousand versus $(7,528) thousand. Why it matters: Debt roughly doubled over the half-year to fund construction, and the swing from prior-year net income is the smaller warrant gain rather than operations, where the loss narrowed. Most of the new cash is restricted to construction use.
sponsor loans outstandingnothing moved · 1 with no prior record of ours
- Sponsor loans outstanding
- $833K · unchanged
The clause …“of the twelve successive months thereafter, Sky shall repay a portion of the outstanding balance of the January 2026 Yorkville Promissory Note in an amount equal to $ 833,333.33 . The obligations of Sky under the January 2026 Yorkville”…
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: Sky Harbour Group Corporation, the Yellowstone Acquisition successor, disclosed a Second Amendment dated June 29, 2026 to the Draw Down Note Purchase and Continuing Covenant Agreement among Sky Harbour Capital II LLC, other borrowers, the lenders and JPMorgan Chase as agent. It permits borrowing up to $20 million for the second phase of the Opa Locka project at Miami-Opa Locka Executive Airport, without adding that project to the borrowing base. Sky Harbour Capital II drew the full $20 million the same day, and the company must contribute at least $20 million back. Why it matters: The structure is telling: the lenders allowed $20 million to be drawn for a project that is not in the borrowing base and whose owner is not a borrower, but required a matching $20 million replenishment from the company. In substance this is a bridge against the Series 2026 bond proceeds rather than new credit capacity. For former YSAC holders it funds construction without issuing equity, but it also shows the term loan facility is being stretched around its own collateral rules.
What changed: At Sky Harbour Group Corporation's 2026 Annual Meeting on June 18, 2026, stockholders approved an amendment to the 2022 Incentive Award Plan increasing the Class A common stock reserved for issuance by 1,500,000 shares, with no other terms modified. Five proposals were voted on. One passed 47,649,011 for, 2,122,060 against, 2,343 abstentions and 7,883,942 broker non-votes; ratification of EisnerAmper LLP as auditor for the fiscal year ending December 31, 2026 passed 57,642,943 for, 13,514 against and 899 abstentions. Why it matters: The substantive item is the 1,500,000-share increase in the equity plan reserve, which is direct dilution of Class A holders and was approved with a notably larger against vote and broker non-vote block than the auditor ratification. The contrast between those two tallies shows compensation, not audit, is where shareholder resistance sits. Nothing here concerns a trust account, since the company is post-combination.
sponsor loans outstandingnothing moved · 1 with no prior record of ours
- Sponsor loans outstanding
- not previously extracted$833K
The clause …“of the twelve successive months thereafter, Sky shall repay a portion of the outstanding balance of the January 2026 Yorkville Promissory Note in an amount equal to $ 833,333.33 . The obligations of Sky under the January 2026 Yorkville”…
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: Sky Harbour Group Corporation, the successor to Yellowstone Acquisition Co, called its annual meeting for Thursday, June 18, 2026 at 10:30 a.m. Eastern Time in person at its offices at Westchester County Airport, White Plains, New York, record date April 21, 2026, with Class A and Class B common stock voting. The Board met four times during the fiscal year ended December 31, 2025. Mr. Jackson served as Audit Committee chair until his resignation effective December 31, 2025, with Mr. Moelis now chair. Why it matters: Class B holders control 42.0 million shares, and 15.8 million further Class A shares sit behind warrants - a dilution block larger than most of the operating share base, exercisable at the holders' option. The audit committee chair resigning at year end, with the board meeting only four times, is thin oversight for a capital-intensive hangar developer. An in-person-only meeting at an airport terminal also limits practical participation.
sponsor loans outstandingnothing moved · 1 with no prior record of ours
- Sponsor loans outstanding
- not previously extracted$833K
The clause …“of the twelve successive months thereafter, Sky shall repay a portion of the outstanding balance of the January 2026 Yorkville Promissory Note in an amount equal to $ 833,333.33 . The obligations of Sky under the January 2026 Yorkville”…
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.
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.