Oyster Enterprises II Acquisition Corp
OYSEU- 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; 8 institutions reported holding it in 13F filings for Q2 2026, worth $4.04M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Oyster Enterprises II Acquisition Corp as of Dec 31, 2025. 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
- 8
- −7 vs. Q3 2025
- Shares held
- 499.5K
- −2.10M (−80.8%) vs. Q3 2025
- Total value
- $5.21M
- −$21.1M (−80.2%) vs. Q3 2025
- New holders
- 0
- 2 more added
- Sold out
- 7
- 3 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OYSEU 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 8 | $4.04M |
| Q1 2026 | 8 | $5.16M |
| Q4 2025 | 8 | $5.21M |
| Q3 2025 | 15 | $26.3M |
| Q2 2025 | 61 | $244.1M |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Oyster Enterprises II Acquisition Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Calamos Advisors LLC | 123,093 | $1.28M | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 100,986 | $1.06M | 0.00% | −200,000−66.4% | Reduced |
| JPMorgan Chase & Co | 100,000 | $1.04M | 0.00% | 00.0% | Unchanged |
| Omers Administration Corp | 59,850 | $625.4K | 0.00% | +230.0% | Added |
| Clear Street Group Inc. | 50,708 | $529.9K | 0.00% | +11,098+28.0% | Added |
| Readystate Asset Management LP | 49,470 | $517.0K | 0.02% | 00.0% | Unchanged |
| Citadel Advisors LLC | 13,161 | $137.5K | 0.00% | −58−0.4% | Reduced |
| UBS Group AG | 2,231 | $22.9K | 0.00% | −200−8.2% | Reduced |
| Westchester Capital Management, LLC | 0 | $0 | 0.00% | −850,000−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| MYDA Advisors LLC | 0 | $0 | 0.00% | −350,000−100.0% | Sold out |
| Bulldog Investors, LLP | 0 | $0 | 0.00% | −120,199−100.0% | Sold out |
| Rivernorth Capital Management, LLC | 0 | $0 | 0.00% | −102,372−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −75,000−100.0% | Sold out |
| Tuttle Tactical Management | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |