Haymaker Acquisition Corp.-28HYAC.WSPreferred / convertible

13F holders, Q1 2025 (March 31)
41holders −3
2new positions
4sold out
2famous investors
$0.21avg. 13F price*

At the end of Q1 2025, 41 institutions reported holding Haymaker Acquisition Corp.-28 (HYAC.WS) in their 13F filings, down 3 from Q4 2024. 2 opened new positions and 4 sold out. The largest holders were Harraden Circle Investments, LLC ($256K), Periscope Capital Inc. ($142K) and MMCAP International Inc. SPC ($94K). 2 famous investors held it, including David E. Shaw ( of D. E. Shaw & Co.'s portfolio) and Ken Griffin ( of Citadel Advisors's portfolio).

Company
Haymaker Acquisition Corp.-28
CUSIP
G4375F116
Latest filing quarter
Q1 2026

History

Number of 13F holders

01020304050 Q1 2024: 50Q1 2024Q2 2024: 49Q2 2024Q3 2024: 46Q3 2024Q4 2024: 44Q4 2024Q1 2025: 41Q1 2025Q2 2025: 39Q2 2025Q3 2025: 37Q3 2025Q4 2025: 31Q4 2025Q1 2026: 26Q1 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions2$6K
Exits4$42K

All 13F filers, Q4 2024 → Q1 2025: 496,226 shares bought and 594,256 shares sold, net −98,030 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 41 holders

Harraden Circle Investments, LLC — Add +44.2% 1,224,000 $256K
Periscope Capital Inc. — No change 687,600 $142K
MMCAP International Inc. SPC — No change 450,000 $94K
Polar Asset Management Partners Inc. — No change 450,000 $90K
Linden Advisors LP — No change 450,001 $86K
Fort Baker Capital Management LP — Reduce -33.2% 404,605 $85K
Shaolin Capital Management LLC — Add +8.3% 400,700 $84K
Schechter Investment Advisors, LLC — Reduce -4.2% 192,500 $40K
Healthcare of Ontario Pension Plan Trust Fund — No change 175,000 $37K
Quarry LP — No change 184,700 $35K
Sandia Investment Management LP — Add +62.5% 162,499 $34K
Moore Capital Management, LP — No change 150,000 $31K
AQR Arbitrage LLC — No change 148,621 $31K
Cantor Fitzgerald, L. P. — No change 138,250 $29K
Sculptor Capital LP — No change 150,000 $29K
Aristeia Capital, L.L.C. — Reduce -2.5% 146,252 $28K
Verition Fund Management LLC — No change 107,662 $23K
Gritstone Asset Management LLC — Reduce -0.3% 104,913 $22K
Glazer Capital, LLC — Reduce -36.3% 99,860 $21K
Alberta Investment Management Corp — No change 100,000 $21K
Picton Mahoney Asset Management — No change 100,000 $20K
D. E. Shaw & Co. — No change 87,500 $18K
Rivernorth Capital Management, LLC — No change 85,043 $18K
Mint Tower Capital Management B.V. — No change 75,000 $16K
Calamos Advisors LLC — No change 50,000 $10K
Centiva Capital, LP — No change 50,000 $10K
Clear Street LLC — No change 29,022 $6K
TENOR CAPITAL MANAGEMENT Co., L.P. — No change 25,049 $5K
Angelo Gordon & Co., L.P. — New 25,000 $5K
Whitebox Advisors LLC — No change 25,000 $5K
LMR Partners LLP — No change 25,000 $5K
Bulldog Investors, LLP — Reduce -11.6% 21,039 $4K
Parallax Volatility Advisers, L.P. — No change 19,900 $4K
GABELLI & Co INVESTMENT ADVISERS, INC. — No change 19,400 $4K
Gabelli Funds LLC — No change 18,100 $4K
Decagon Asset Management LLP — Add +1.0% 16,349 $3K
Yakira Capital Management, Inc. — No change 15,000 $3K
Wealthspring Capital LLC — Reduce -5.0% 13,200 $3K
K2 Principal Fund, L.P. — No change 12,500 $3K
Citadel Advisors — Reduce -59.1% 10,801 $2K
UBS Group AG — New 2,867 $599

"% of holder's portfolio" is HYAC.WS's weight in each manager's 13F, not the share of Haymaker Acquisition Corp.-28 the manager owns.