Oyster Enterprises II Acquisition Corp
Oyster Enterprises II Acquisition Corp (OYSE) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · OYSE · as of Sep 30, 2025
Ownership Breakdown
53
Institutional Holders
▲ 53 vs Q2
$220.22M
Total Inst. Value
▲ $220.22M vs Q2
33.91M
Shares Outstanding
freeFloat 14.08%
21.96M
13F Shares Held
▲ 21.96M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
OYSE largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
GLAZER CAPITAL, LLC blank checks | 1.50M | 5.77% | 5.77% | $15.03B | Nov 13, 2025 | NEW |
METEORA CAPITAL, LLC blank checks | 1.34M | 5.16% | 5.16% | $13.45B | Nov 17, 2025 | NEW |
MAGNETAR FINANCIAL LLC blank checks | 1.30M | 5.00% | 5.00% | $13.04B | Nov 13, 2025 | NEW |
D. E. SHAW & CO., INC. blank checks | 1.25M | 4.82% | 4.82% | $12.57B | Nov 14, 2025 | NEW |
LINDEN ADVISORS LP blank checks | 1.15M | 4.42% | 4.42% | $11.55B | Nov 14, 2025 | NEW |
AQR ARBITRAGE LLC blank checks | 1.14M | 4.38% | 4.38% | $11.41B | Nov 14, 2025 | NEW |
LMR PARTNERS LLP blank checks | 1.10M | 4.23% | 4.23% | $11.02B | Nov 14, 2025 | NEW |
PICTON MAHONEY ASSET MANAGEMENT blank checks | 1.00M | 3.85% | 3.85% | $10.03B | Nov 12, 2025 | NEW |
TENOR CAPITAL MANAGEMENT CO., L.P. blank checks | 900.0K | 3.46% | 3.46% | $9.02B | Nov 14, 2025 | NEW |
TWO SIGMA INVESTMENTS, LP blank checks | 797.5K | 3.07% | 3.07% | $7.99B | Nov 14, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
0
Increased
+0 shares50
New Positions
first time holders0
Decreased
−0 shares0
Sold Out
fully exitedNet shares change (top 50)
+0
+0 / −0
Net new holders
+50
50 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
OYSE insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
LightWave Founders LLC 10 percent owner | Jun 26, 2025 | Purchase | 606,250 | $11.50 | $6.97M | 606.3K | Form 4 ↗ |
LightWave Founders LLC 10 percent owner | Jun 26, 2025 | Purchase | 606,250 | — | — | 606.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Oyster Enterprises II Acquisition Corp (OYSE) is primarily owned by institutional investors, who hold approximately 64.8% of total shares outstanding. Company insiders own approximately 85.92%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Oyster Enterprises II Acquisition Corp is GLAZER CAPITAL, LLC, holding approximately 1.50 million shares — equal to 5.77% of outstanding shares — as of September 30, 2025.
A total of 53 institutional investors currently hold OYSE stock, with a combined institutional value of approximately $220,220,313 as of the most recent 13F filing period.
Frequently asked questions
OYSE ownershipOyster Enterprises II Acquisition Corp (OYSE) is primarily owned by institutional investors, who hold approximately 64.8% of shares. The largest shareholder is GLAZER CAPITAL, LLC with a 5.77% stake. Company insiders hold 85.92%. Data sourced from SEC Form 13F as of September 30, 2025.