HAYMAKER ACQUISITION CORP. 4 - Class A ordinary shares, par value $0.0001 per share (HYAC)

Q: What does CUSIP G4375F108 represent in this 13F holders report?

CUSIP G4375F108 is the security identifier for HYAC - HAYMAKER ACQUISITION CORP. 4 - Class A ordinary shares, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held HYAC - HAYMAKER ACQUISITION CORP. 4 - Class A ordinary shares, par value $0.0001 per share in Q4 2025?

47 institutional investors reported HYAC - HAYMAKER ACQUISITION CORP. 4 - Class A ordinary shares, par value $0.0001 per share for Q4 2025. Use the holders table for investor-level position and value details.

CUSIP: G4375F108

Q4 2025 13F Holders as of 31 Dec 2025

Security type / class: Equity / Class A ordinary shares, par value $0.0001 per share
Total 13F shares: 21,845,807
Total 13F value: $248,471,131
Share change: +1,043
SEC-reported price per share: $11.38
Number of holders: 47
Value change: -$16,138
Number of buys: 9
Number of sells: 16
Shares outstanding: 23,425,652

Security key

G4375F108

Report period

Q4 2025

Institutions

Top holders

HYAC full security history Ownership snapshot Full 13F holder table Newer quarter: Q1 2026 Previous quarter: Q3 2025 Haymaker Acquisition Corp. 4 SEC filings Haymaker Acquisition Corp. 4 company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP G4375F108

Newer quarter: Q1 2026 Previous quarter: Q3 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025

Ownership snapshot

Top reported holders of HYAC - HAYMAKER ACQUISITION CORP. 4 - Class A ordinary shares, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Fort Baker Capital Manage...

Disclosed value leader

Fort Baker Capital Manage...

Comparable rows

15/15

Latest evidence

31 Dec 2025

13F 13D/G Lead comparable stake: 9% 13D/G row: Fort Baker Capital Management LP Showing 1-6 of 15 holder rows.

Quick read

Fort Baker Capital Management LP leads the comparable SEC ownership view at 9%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Fort Baker Capital Management LP's linked filing trail.

Comparable ownership Top 5

Fort Baker Capital Management LP 9%

Westchester Capital Management, LLC 8.2%

First Trust Capital Management L.P. 6.3%

MIZUHO FINANCIAL GROUP INC 5.3%

BERKLEY W R CORP 7.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Fort Baker Capital Management LP	13F 13D/G Company 13F 13D/G	9% from 13D/G	$26,504,075 2,337,220 shares	—	30 Sep 2025
Westchester Capital Management, LLC	13F 13D/G Company 13F 13D/G	8.2% from 13D/G	$21,988,577 1,939,028 shares	—	30 Sep 2025
First Trust Capital Management L.P.	13D/G 13F Company 13D/G 13F	6.3%	$16,752,673 1,477,308 shares	$0	30 Sep 2025
MIZUHO FINANCIAL GROUP INC	13D/G 13D/G	5.3%	$14,215,054 1,249,126 shares	$0	31 Dec 2025
BERKLEY W R CORP	13F Company 13F	7.2%	$19,051,336 1,680,012 shares	—	30 Sep 2025
Wealthspring Capital LLC	13F Company 13F	7.2%	$19,032,999 1,678,395 shares	—	30 Sep 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

21,845,807

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2025 vs Q3 2025 Across Filers

Q3 2025 holders

Q4 2025 holders

Holder diff

-1

Investor	Q3 2025 Shares	Q4 2025 Shares	Share Diff	Share Chg %	Q3 2025 value	Q4 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend