Oyster Enterprises II Acquisition Corp (OYSE) — Institutional Holders, Q2 2026
71 institutional investment managers reported a OYSE position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $257.6M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
OYSE in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- SONA ASSET MANAGEMENT (US)Added · +450,000 sh+$2.4M
- COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYSAdded · +400,000 sh+$2.1M
- MIZUHO SECURITIES USAAdded · +146,483 sh+$765.0K
- Karpus ManagementAdded · +145,935 sh+$762.1K
- Calamos AdvisorsAdded · +123,093 sh+$642.9K
Biggest sellers
- METEORA CAPITALTrimmed · -485,461 sh-$2.5M
- BERKLEY W RTrimmed · -228,022 sh-$1.2M
- Verition Fund ManagementTrimmed · -218,924 sh-$1.1M
- Parallax Volatility Advisers, L.P.Trimmed · -77,924 sh-$407.0K
- DELTEC ASSET MANAGEMENTSold out · -50,000 sh-$261.1K
OYSE 13F holders ranked 1–71 of 71
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | GLAZER CAPITAL#1 · 2,333,021 sh | 2,333,021 | $16.2M | 0.40% | +0.5% |
| 2 | Magnetar Financial#2 · 2,600,000 sh | 2,600,000 | $13.6M | 0.12% | 0.0% |
| 3 | Westchester Capital Management#3 · 2,145,112 sh | 2,145,112 | $13.4M | 0.66% | 0.0% |
| 4 | D. E. Shaw#4 · 1,252,350 sh | 1,252,350 | $12.9M | <0.01% | 0.0% |
| 5 | LINDEN ADVISORS#5 · 2,150,000 sh | 2,150,000 | $12.0M | 0.06% | 0.0% |
| 6 | AQR Arbitrage#6 · 2,241,349 sh | 2,241,349 | $11.5M | 0.16% | +0.3% |
| 7 | LMR Partners LLP#7 · 2,200,000 sh | 2,200,000 | $11.4M | 0.04% | 0.0% |
| 8 | PICTON MAHONEY ASSET MANAGEMENT#8 · 1,815,000 sh | 1,815,000 | $10.5M | 0.08% | +0.8% |
| 9 | TENOR CAPITAL MANAGEMENT , L.P.#9 · 1,800,000 sh | 1,800,000 | $9.4M | 0.13% | 0.0% |
| 10 | METEORA CAPITAL#10 · 3,015,116 sh | 3,015,116 | $9.3M | 0.77% | -13.9% |
| 11 | Karpus Management#11 · 803,996 sh | 803,996 | $8.3M | 0.24% | +22.2% |
| 12 | TWO SIGMA INVESTMENTS#12 · 797,500 sh | 797,500 | $8.2M | <0.01% | 0.0% |
| 13 | MILLENNIUM MANAGEMENT#13 · 1,439,986 sh | 1,439,986 | $8.1M | <0.01% | 0.0% |
| 14 | Hudson Bay Capital Management#14 · 1,198,060 sh | 1,198,060 | $7.2M | 0.02% | 0.0% |
| 15 | Radcliffe Capital Management, L.P.#15 · 1,174,821 sh | 1,174,821 | $6.5M | 0.49% | 0.0% |
| 16 | MOORE CAPITAL MANAGEMENT#16 · 1,000,000 sh | 1,000,000 | $5.2M | 0.08% | 0.0% |
| 17 | RIVERNORTH CAPITAL MANAGEMENT#17 · 974,872 sh | 974,872 | $5.0M | 0.24% | 0.0% |
| 18 | BERKLEY W R#18 · 475,872 sh | 475,872 | $4.9M | 0.23% | -32.4% |
| 19 | ARISTEIA CAPITAL, L.L.C.#19 · 908,000 sh | 908,000 | $4.7M | 0.06% | 0.0% |
| 20 | MANGROVE PARTNERS IM#20 · 450,000 sh | 450,000 | $4.6M | 0.30% | 0.0% |
| 21 | Polar Asset Management Partners#21 · 826,400 sh | 826,400 | $4.2M | 0.07% | +3.3% |
| 22 | Alberta Investment Management#22 · 800,000 sh | 800,000 | $4.2M | 0.02% | 0.0% |
| 23 | DAVIDSON KEMPNER CAPITAL MANAGEMENT#23 · 800,000 sh | 800,000 | $4.2M | 0.05% | 0.0% |
| 24 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS#24 · 750,000 sh | 750,000 | $3.7M | 0.02% | +114.3% |
| 25 | GOLDMAN SACHS GROUP#25 · 346,312 sh | 346,312 | $3.6M | <0.01% | 0.0% |
| 26 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#26 · 790,000 sh | 790,000 | $3.6M | <0.01% | 0.0% |
| 27 | Bulldog Investors, LLP#27 · 628,625 sh | 628,625 | $3.3M | 0.73% | -0.9% |
| 28 | Verition Fund Management#28 · 872,877 sh | 872,877 | $3.1M | <0.01% | -20.1% |
| 29 | TORONTO DOMINION BANK#29 · 793,549 sh | 793,549 | $2.9M | <0.01% | +17.2% |
| 30 | GABELLI & INVESTMENT ADVISERS#30 · 501,400 sh | 501,400 | $2.6M | 0.38% | 0.0% |
| 31 | WHITEBOX ADVISORS#31 · 500,000 sh | 500,000 | $2.6M | 0.03% | 0.0% |
| 32 | PERISCOPE CAPITAL#32 · 544,345 sh | 544,345 | $2.6M | 0.22% | 0.0% |
| 33 | Schonfeld Strategic Advisors#33 · 485,091 sh | 485,091 | $2.5M | <0.01% | +6.1% |
| 34 | Clear Street Group#34 · 491,554 sh | 491,554 | $2.4M | <0.01% | -4.4% |
| 35 | Shaolin Capital Management#35 · 650,393 sh | 650,393 | $2.2M | 0.11% | -7.1% |
| 36 | WOLVERINE ASSET MANAGEMENT#36 · 214,698 sh | 214,698 | $2.2M | 0.02% | -1.1% |
| 37 | MYDA Advisors#37 · 548,000 sh | 548,000 | $2.1M | 0.31% | 0.0% |
| 38 | MMCAP International SPC#38 · 400,000 sh | 400,000 | $2.1M | 0.18% | 0.0% |
| 39 | SONA ASSET MANAGEMENT (US)#39 · 623,344 sh | 623,344 | $1.8M | 0.04% | +259.6% |
| 40 | GABELLI FUNDS#40 · 373,600 sh | 373,600 | $1.8M | 0.01% | -6.3% |
| 41 | MIZUHO SECURITIES USA#41 · 163,173 sh | 163,173 | $1.7M | 0.02% | +877.7% |
| 42 | Mint Tower Capital Management B.V.#42 · 300,000 sh | 300,000 | $1.6M | 0.18% | 0.0% |
| 43 | First Capital Management L.P.#43 · 150,000 sh | 150,000 | $1.5M | 0.09% | 0.0% |
| 44 | Calamos Advisors#44 · 246,186 sh | 246,186 | $1.3M | <0.01% | +100.0% |
| 45 | DLD Asset Management#45 · 206,130 sh | 206,130 | $1.0M | 0.07% | 0.0% |
| 46 | O'Connor Alternative Investments#46 · 100,000 sh | 100,000 | $1.0M | 0.08% | 0.0% |
| 47 | JPMORGAN CHASE#47 · 100,000 sh | 100,000 | $1.0M | <0.01% | 0.0% |
| 48 | L1 Global Manager Pty Ltd#48 · 100,000 sh | 100,000 | $1.0M | 0.73% | 0.0% |
| 49 | Parallax Volatility Advisers, L.P.#49 · 234,143 sh | 234,143 | $953.6K | <0.01% | -25.0% |
| 50 | 683 Capital Management#50 · 150,000 sh | 150,000 | $780.0K | 0.04% | 0.0% |
| 51 | OMERS ADMINISTRATION#51 · 61,050 sh | 61,050 | $670.9K | <0.01% | 0.0% |
| 52 | HEIGHTS CAPITAL MANAGEMENT#52 · 50,000 sh | 50,000 | $515.5K | 0.12% | 0.0% |
| 53 | Limestone Investment Advisors#53 · 50,094 sh | 50,094 | $515.5K | 0.04% | New |
| 54 | GRITSTONE ASSET MANAGEMENT#54 · 98,859 sh | 98,859 | $514.1K | — | 0.0% |
| 55 | READYSTATE ASSET MANAGEMENT#55 · 49,470 sh | 49,470 | $509.5K | <0.01% | 0.0% |
| 56 | HIGHBRIDGE CAPITAL MANAGEMENT#56 · 47,911 sh | 47,911 | $492.0K | 0.01% | New |
| 57 | BNP PARIBAS FINANCIAL MARKETS#57 · 386,210 sh | 386,210 | $458.1K | <0.01% | 0.0% |
| 58 | Dakota Wealth Management#58 · 40,900 sh | 40,900 | $420.9K | <0.01% | 0.0% |
| 59 | ABC ARBITRAGE SA#59 · 25,000 sh | 25,000 | $257.3K | — | 0.0% |
| 60 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#60 · 20,834 sh | 20,834 | $214.8K | 0.00% | -4.6% |
| 61 | GEODE CAPITAL MANAGEMENT#61 · 14,458 sh | 14,458 | $149.1K | 0.00% | 0.0% |
| 62 | CITADEL ADVISORS#62 · 13,259 sh | 13,259 | $136.6K | 0.00% | 0.0% |
| 63 | Harraden Circle Investments#63 · 1,178,826 sh | 1,178,826 | $129.8K | 0.02% | 0.0% |
| 64 | Warberg Asset Management#64 · 10,000 sh | 10,000 | $102.9K | 0.02% | 0.0% |
| 65 | CSS#65 · 66,340 sh | 66,340 | $73.0K | <0.01% | 0.0% |
| 66 | Decagon Asset Management LLP#66 · 307,542 sh | 307,542 | $33.9K | <0.01% | +68.0% |
| 67 | Alpine Global Management#67 · 245,295 sh | 245,295 | $27.0K | <0.01% | 0.0% |
| 68 | UBS Group AG#68 · 2,241 sh | 2,241 | $23.1K | 0.00% | 0.0% |
| 69 | Walleye Capital#69 · 75,000 sh | 75,000 | $8.3K | 0.00% | -50.0% |
| 70 | MORGAN STANLEY#70 · 43 sh | 43 | $442.00 | 0.00% | -35.8% |
| 71 | Context Capital Management#71 · 501,564 sh | 501,564 | — | — | 0.0% |
Funds that sold out of OYSE in Q2 2026 (1)
Held OYSE at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| DELTEC ASSET MANAGEMENT50,000 sh | 50,000 | $508.5K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.