Oyster Enterprises II AcquisOYSEU
13F holders, Q3 2025 (September 30)At the end of Q3 2025, 15 institutions reported holding Oyster Enterprises II Acquis (OYSEU) in their 13F filings, down 46 from Q2 2025. 2 opened new positions and 9 sold out. The largest holders were Westchester Capital Management, LLC ($8.5M), Alberta Investment Management Corp ($4.1M) and MYDA Advisors LLC ($3.6M). 2 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Oyster Enterprises II Acquis
- CUSIP
- G6861F120
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $749K |
| Exits | 9 | $12.0M |
All 13F filers, Q2 2025 → Q3 2025: 73,046 shares bought and 2,259,324 shares sold, net −2,186,278 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 15 holders
| Westchester Capital Management, LLC | 0.44% | No change | 850,000 | $8.5M |
| Alberta Investment Management Corp | 0.03% | No change | 400,000 | $4.1M |
| MYDA Advisors LLC | 1.09% | Reduce -6.7% | 350,000 | $3.6M |
| Millennium Management | 0.00% | Reduce -63.5% | 300,986 | $3.1M |
| Calamos Advisors LLC | 0.01% | No change | 123,093 | $1.3M |
| Bulldog Investors, LLP | 0.28% | Reduce -50.3% | 120,199 | $1.2M |
| JPMorgan Chase & Co. | 0.00% | No change | 100,000 | $1.0M |
| Rivernorth Capital Management, LLC | 0.06% | Reduce -79.5% | 102,372 | $1.0M |
| Walleye Capital LLC | 0.01% | No change | 75,000 | $769K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 59,827 | $613K |
| Readystate Asset Management LP | 0.05% | Reduce -1.1% | 49,470 | $507K |
| Clear Street Group Inc. | 0.00% | — | 39,610 | $404K |
| Citadel Advisors | 0.00% | New | 13,219 | $135K |
| Tuttle Capital Management, LLC | 0.39% | No change | 10,000 | $102K |
| UBS Group AG | 0.00% | Reduce -22.6% | 2,431 | $24K |
"% of holder's portfolio" is OYSEU's weight in each manager's 13F, not the share of Oyster Enterprises II Acquis the manager owns.