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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, Q1 2026

Institutional positions in Oyster Enterprises II Acquisition Corp as of Mar 31, 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
60
+1 vs. Q4 2025
Shares held
24.5M
+90.0K (+0.4%) vs. Q4 2025
Total value
$250.0M
+$2.96M (+1.2%) vs. Q4 2025
New holders
4
4 more added
Sold out
3
15 more reduced

1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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 holdersQ1 2026: 60 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 heldQ1 2026: $250.0M
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, Q1 2026

Shares, value and share of portfolio for each institution holding Oyster Enterprises II Acquisition Corp; share changes are against Q4 2025.

Institutions holding OYSE in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Glazer Capital, LLC1,550,000$15.8M0.33%+48,604+3.2%Added
Westchester Capital Management, LLC1,295,112$13.2M0.64%00.0%Unchanged
Magnetar Financial LLC1,300,000$13.2M0.13%00.0%Unchanged
D. E. Shaw & Co., Inc.1,252,350$12.8M0.01%00.0%Unchanged
Meteora Capital, LLC1,188,787$12.1M0.89%−11,196−0.9%Reduced
Linden Advisors LP1,150,000$11.8M0.07%00.0%Unchanged
CNH Partners LLC1,095,684$11.2M0.18%−43,004−3.8%Reduced
LMR Partners LLP1,100,000$11.2M0.10%00.0%Unchanged
Picton Mahoney Asset Management1,000,000$10.2M0.11%00.0%Unchanged
Tenor Capital Management Co., L.P.900,000$9.15M0.14%00.0%Unchanged
Two Sigma Investments, LP797,500$8.11M0.01%00.0%Unchanged
Hudson Bay Capital Management LP696,530$7.12M0.04%00.0%Unchanged
Millennium Management LLC668,989$6.80M0.01%+38,989+6.2%Added
Karpus Management, Inc.658,061$6.69M0.21%−15,050−2.2%Reduced
Radcliffe Capital Management, L.P.623,741$6.34M0.48%00.0%Unchanged
Moore Capital Management, LP500,000$5.09M0.19%00.0%Unchanged
Berkley W R Corp475,872$4.84M0.26%00.0%Unchanged
Rivernorth Capital Management, LLC475,000$4.83M0.24%−22,500−4.5%Reduced
Aristeia Capital LLC454,000$4.62M0.11%00.0%Unchanged
Mangrove Partners450,000$4.58M0.37%00.0%Unchanged
Alberta Investment Management Corp400,000$4.09M0.03%00.0%Unchanged
Davidson Kempner Capital Management LP400,000$4.09M0.07%00.0%Unchanged
Polar Asset Management Partners Inc.399,900$4.07M0.10%−1000.0%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys350,000$3.56M0.02%−50,000−12.5%Reduced
Goldman Sachs Group Inc346,312$3.52M0.00%00.0%Unchanged
Healthcare of Ontario Pension Plan Trust Fund340,000$3.47M0.01%00.0%Unchanged
Bulldog Investors, LLP324,436$3.30M0.74%−2,660−0.8%Reduced
Verition Fund Management LLC301,711$3.08M0.03%−120,904−28.6%Reduced
Toronto Dominion Bank277,000$2.83M0.01%−50,000−15.3%Reduced
Context Capital Management, LLC250,782$2.55M0.06%00.0%Unchanged
Gabelli & Co Investment Advisers, Inc.250,700$2.55M0.38%00.0%Unchanged
Whitebox Advisors LLC250,000$2.54M0.04%00.0%Unchanged
Shaolin Capital Management LLC250,000$2.54M0.11%+50,000+25.0%Added
Periscope Capital Inc.244,345$2.49M0.43%−53,655−18.0%Reduced
Wolverine Asset Management LLC217,108$2.21M0.03%−17,962−7.6%Reduced
Schonfeld Strategic Advisors LLC207,303$2.11M0.02%+812+0.4%Added
MMCAP International Inc. SPC200,000$2.03M0.18%00.0%Unchanged
Clear Street Group Inc.199,495$2.03M0.01%−513−0.3%Reduced
Gabelli Funds LLC199,300$2.03M0.01%00.0%Unchanged
MYDA Advisors LLC199,000$2.02M0.48%00.0%Unchanged
Sona Asset Management (US) LLC173,344$1.76M0.07%+173,344New
Mint Tower Capital Management B.V.150,000$1.53M0.15%00.0%Unchanged
Vivaldi Asset Management, LLC150,000$1.53M0.08%00.0%Unchanged
O'Connor Alternative Investments LLC100,000$1.02M0.05%+100,000New
DLD Asset Management, LP100,038$1.02M0.10%00.0%Unchanged
L1 Global Manager Pty Ltd100,000$1.02M0.82%00.0%Unchanged
Walleye Capital LLC75,000$766.5K0.00%00.0%Unchanged
683 Capital Management, LLC75,000$762.8K0.07%00.0%Unchanged
Parallax Volatility Advisers, L.P.69,040$706.3K0.03%+69,040New
Heights Capital Management, Inc50,000$511.0K0.14%00.0%Unchanged
Deltec Asset Management LLC50,000$508.5K0.09%00.0%Unchanged
Gritstone Asset Management LLC49,429$502.7K0.54%00.0%Unchanged
Dakota Wealth Management40,900$416.0K0.01%−1,600−3.8%Reduced
BNP Paribas Arbitrage, SA39,898$405.8K0.00%+39,898New
Abc Arbitrage SA25,000$254.3K0.03%00.0%Unchanged
Susquehanna International Group, LLP21,846$223.3K0.00%−1,622−6.9%Reduced
Mizuho Securities USA LLC16,690$169.4K0.00%00.0%Unchanged
Geode Capital Management, LLC14,458$147.8K0.00%00.0%Unchanged
Warberg Asset Management LLC10,000$101.7K0.03%00.0%Unchanged
Morgan Stanley67$6810.00%−20−23.0%Reduced
Alyeska Investment Group, L.P.0$00.00%−25,000−100.0%Sold out
Virtu Financial LLC0$00.00%−10,979−100.0%Sold out
Citigroup Inc0$00.00%−3,900−100.0%Sold out
UBS Oconnor LLC––––Not filed