Haymaker Acquisition Corp.-28HYAC.WSPreferred / convertible

13F holders, Q1 2026 (March 31)
26holders −5
6new positions
10sold out
$2.95avg. 13F price*

At the end of Q1 2026, 26 institutions reported holding Haymaker Acquisition Corp.-28 (HYAC.WS) in their 13F filings, down 5 from Q4 2025. 6 opened new positions and 10 sold out. The largest holders were Polar Asset Management Partners Inc. ($11.1M), Hudson Bay Capital Management LP ($3.6M) and Aristeia Capital, L.L.C. ($3.4M).

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 2025 → Q1 2026

InstitutionsTotal Value
New Positions6$1.6M
Exits10$2.5M

All 13F filers, Q4 2025 → Q1 2026: 6,436,006 shares bought and 5,851,474 shares sold, net +584,532 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 26 holders
Polar Asset Management Partners Inc. — Add +737.0% 3,766,581 $11.1M
Hudson Bay Capital Management LP — Add +197.9% 1,236,234 $3.6M
Aristeia Capital, L.L.C. — Add +686.3% 1,150,000 $3.4M
LMR Partners LLP — Add +879.6% 734,699 $2.2M
Linden Advisors LP — No change 450,001 $1.3M
Fort Baker Capital Management LP — New 316,127 $933K
Harraden Circle Investments, LLC — Reduce -93.2% 264,100 $779K
K2 Principal Fund, L.P. — Add +66.1% 231,072 $682K
Healthcare of Ontario Pension Plan Trust Fund — No change 175,000 $516K
Toronto Dominion Bank — Reduce -76.0% 150,000 $443K
Moore Capital Management, LP — No change 150,000 $443K
Alberta Investment Management Corp — No change 100,000 $295K
Rivernorth Capital Management, LLC — No change 85,043 $251K
CastleKnight Management LP — New 79,600 $235K
Mint Tower Capital Management B.V. — No change 75,000 $221K
Cantor Fitzgerald, L. P. — New 74,619 $220K
Shaolin Capital Management LLC — Reduce -62.5% 74,018 $218K
Calamos Advisors LLC — No change 50,000 $148K
Clear Street Group Inc. — Add +41.0% 40,912 $121K
Prelude Capital Management, LLC — New 25,000 $74K
TPG GP A, LLC — New 25,000 $74K
GABELLI & Co INVESTMENT ADVISERS, INC. — No change 19,400 $57K
Gabelli Funds LLC — No change 18,100 $53K
Readystate Asset Management LP — No change 17,667 $52K
Yakira Capital Management, Inc. — No change 15,000 $44K
Virtu Financial LLC — New 10,439 $31K

"% 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.