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Oyster Enterprises II Acquisition Corp

OYSE
Exchange
Nasdaq
Industry
Blank Checks
SEC CIK
0002042182

No open-market purchases or sales by Oyster Enterprises II Acquisition Corp insiders were filed in the last 90 days; 62 institutions reported holding it in 13F filings for Q2 2026, worth $253.8M in total; no superinvestor holds it.

Other share classesOYSEROYSEU

13F holders, Q2 2026

Institutional positions in Oyster Enterprises II Acquisition Corp as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
62
+2 vs. Q1 2026
Shares held
24.6M
+93.7K (+0.4%) vs. Q1 2026
Total value
$253.8M
+$3.74M (+1.5%) vs. Q1 2026
New holders
3
9 more added
Sold out
1
10 more reduced

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OYSE on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 62 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 52 institutionsQ4 2025: 60 institutionsQ1 2026: 60 institutionsQ2 2026: 62 institutions
Value heldQ2 2026: $253.8M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $220.2MQ4 2025: $248.1MQ1 2026: $250.0MQ2 2026: $253.8M
Institutions holding OYSE and their total value by quarter
QuarterHoldersValue
Q2 202662$253.8M
Q1 202660$250.0M
Q4 202560$248.1M
Q3 202552$220.2M
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Oyster Enterprises II Acquisition Corp; share changes are against Q1 2026.

Institutions holding OYSE in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Morgan Stanley43$4420.00%−24−35.8%Reduced
Warberg Asset Management LLC10,000$102.9K0.03%00.0%Unchanged
Geode Capital Management, LLC14,458$149.1K0.00%00.0%Unchanged
Susquehanna International Group, LLP20,834$214.8K0.00%−1,012−4.6%Reduced
Abc Arbitrage SA25,000$257.3K0.03%00.0%Unchanged
BNP Paribas Arbitrage, SA39,898$411.3K0.00%00.0%Unchanged
Dakota Wealth Management40,900$420.9K0.01%00.0%Unchanged
Highbridge Capital Management LLC47,911$492.0K0.02%+47,911New
Gritstone Asset Management LLC49,429$508.6K0.49%00.0%Unchanged
Deltec Asset Management LLC50,000$514.5K0.08%00.0%Unchanged
Limestone Investment Advisors LP50,094$515.5K0.26%+50,094New
Heights Capital Management, Inc50,000$515.5K0.12%00.0%Unchanged
683 Capital Management, LLC75,000$771.8K0.07%00.0%Unchanged
Parallax Volatility Advisers, L.P.90,616$934.3K0.03%+21,576+31.3%Added
L1 Global Manager Pty Ltd100,000$1.03M0.83%00.0%Unchanged
DLD Asset Management, LP100,038$1.03M0.08%00.0%Unchanged
O'Connor Alternative Investments LLC100,000$1.03M0.08%00.0%Unchanged
Calamos Advisors LLC123,093$1.27M0.00%+123,093New
Mizuho Securities USA LLC146,483$1.50M0.02%+129,793+777.7%Added
Vivaldi Asset Management, LLC150,000$1.54M0.09%00.0%Unchanged
Mint Tower Capital Management B.V.150,000$1.54M0.18%00.0%Unchanged
Sona Asset Management (US) LLC173,344$1.78M0.07%00.0%Unchanged
Gabelli Funds LLC174,300$1.79M0.01%−25,000−12.5%Reduced
Clear Street Group Inc.178,908$1.84M0.01%−20,587−10.3%Reduced
MYDA Advisors LLC199,000$2.05M0.50%00.0%Unchanged
MMCAP International Inc. SPC200,000$2.06M0.17%00.0%Unchanged
Shaolin Capital Management LLC210,002$2.16M0.12%−39,998−16.0%Reduced
Wolverine Asset Management LLC214,698$2.21M0.03%−2,410−1.1%Reduced
Schonfeld Strategic Advisors LLC235,091$2.42M0.01%+27,788+13.4%Added
Periscope Capital Inc.244,345$2.51M0.40%00.0%Unchanged
Whitebox Advisors LLC250,000$2.57M0.04%00.0%Unchanged
Gabelli & Co Investment Advisers, Inc.250,700$2.58M0.38%00.0%Unchanged
Context Capital Management, LLC250,782$2.58M0.05%00.0%Unchanged
Toronto Dominion Bank277,000$2.85M0.00%00.0%Unchanged
Verition Fund Management LLC292,103$3.01M0.02%−9,608−3.2%Reduced
Bulldog Investors, LLP320,436$3.30M0.73%−4,000−1.2%Reduced
Healthcare of Ontario Pension Plan Trust Fund340,000$3.51M0.01%00.0%Unchanged
Goldman Sachs Group Inc346,312$3.56M0.00%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys350,000$3.60M0.02%00.0%Unchanged
Polar Asset Management Partners Inc.399,800$4.11M0.08%−1000.0%Reduced
Davidson Kempner Capital Management LP400,000$4.12M0.07%00.0%Unchanged
Alberta Investment Management Corp400,000$4.12M0.02%00.0%Unchanged
Mangrove Partners450,000$4.63M0.30%00.0%Unchanged
Aristeia Capital LLC454,000$4.67M0.07%00.0%Unchanged
Berkley W R Corp475,872$4.91M0.24%00.0%Unchanged
Rivernorth Capital Management, LLC475,000$4.91M0.23%00.0%Unchanged
Moore Capital Management, LP500,000$5.14M0.12%00.0%Unchanged
Radcliffe Capital Management, L.P.623,742$6.42M0.49%+10.0%Added
Millennium Management LLC669,000$6.88M0.00%+110.0%Added
Hudson Bay Capital Management LP696,530$7.18M0.03%00.0%Unchanged
Two Sigma Investments, LP797,500$8.21M0.01%00.0%Unchanged
Karpus Management, Inc.803,996$8.27M0.24%+145,935+22.2%Added
Meteora Capital, LLC881,794$9.07M0.75%−306,993−25.8%Reduced
Tenor Capital Management Co., L.P.900,000$9.26M0.13%00.0%Unchanged
Picton Mahoney Asset Management1,015,000$10.4M0.10%+15,000+1.5%Added
LMR Partners LLP1,100,000$11.3M0.08%00.0%Unchanged
CNH Partners LLC1,100,584$11.3M0.16%+4,900+0.4%Added
Linden Advisors LP1,150,000$11.9M0.06%00.0%Unchanged
D. E. Shaw & Co., Inc.1,252,350$12.9M0.01%00.0%Unchanged
Westchester Capital Management, LLC1,295,112$13.4M0.67%00.0%Unchanged
Magnetar Financial LLC1,300,000$13.4M0.12%00.0%Unchanged
Glazer Capital, LLC1,562,348$16.1M0.40%+12,348+0.8%Added
Walleye Capital LLC0$00.00%−75,000−100.0%Sold out