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OYSE

Oyster Enterprises II Acquisition Corp

Company with tickers: OYSE, OYSER, OYSEU

CIK
2042182
CUSIP
G6861F104
Shares Outstanding
26,008,000
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 59
Total Value: $239,686,928
Total Shares: 23,707,907

Institutional Ownership Trend

2 quarters

Holder Concentration

Across 59 13F filers · Δ vs Sep 30, 2025
Top Holder
6.3%
−1.0 pts
Top 5
27.6%
−4.4 pts
Top 10
49.9%
−6.2 pts
HHI
341
Broadly held −63

Quarterly Activity

vs Sep 30, 2025
New
12
Increased
11
Decreased
8
Sold Out
1
Unchanged
28
Holder count: +11
Institutional value: +16.8%
Shares held: +15.8%

Top Buyers

vs Sep 30, 2025
Institution Added Now Holds
Mid Westchester Capital Management, LLC +850,000 1,295,112
Large TORONTO DOMINION BANK +177,000 202,000
Mega MILLENNIUM MANAGEMENT LLC +154,998 630,000
Small Bulldog Investors, LLC +112,349 327,096
Mid RiverNorth Capital Management, LLC +100,000 497,500

Top Sellers

vs Sep 30, 2025
Institution Sold Now Holds
Small Meteora Capital, LLC −142,293 1,199,983
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND −110,000 340,000
Small DLD Asset Management, LP −99,962 100,038
Mid MIZUHO SECURITIES USA LLC −95,347 16,690
Small Shaolin Capital Management LLC −49,654 200,000

Top New Positions

vs Sep 30, 2025
Institution Acquired Value (USD)
Large Hudson Bay Capital Management LP 696,530 $7,041,918
Mid Davidson Kempner Capital Management LP 400,000 $4,044,000
Mid Polar Asset Management Partners Inc. 400,000 $4,044,000
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 400,000 $4,044,000
Mega GOLDMAN SACHS GROUP INC 346,312 $3,501,214

Top Sold-Out Positions

vs Sep 30, 2025
Institution Previously Held Last Value (USD)
Mid Karpus Management, Inc. 619,717 $6,210,803
59 of 59 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mid GLAZER CAPITAL, LLC $15,179,113 6.33% 1,501,396 View
Mid Magnetar Financial LLC $13,143,000 5.48% 1,300,000 View
Mid Westchester Capital Management, LLC $13,093,581 5.46% 1,295,112 View
Mega D. E. Shaw & Co., Inc. $12,661,258 5.28% 1,252,350 View
Small Meteora Capital, LLC $12,131,828 5.06% 1,199,983 View
Small Linden Advisors LP $11,626,500 4.85% 1,150,000 View
Mid CNH PARTNERS LLC $11,512,135 4.80% 1,138,688 View
Large LMR Partners LLP $11,121,000 4.64% 1,100,000 View
Mid PICTON MAHONEY ASSET MANAGEMENT $10,110,000 4.22% 1,000,000 View
Small TENOR CAPITAL MANAGEMENT Co., L.P. $9,099,000 3.80% 900,000 View
Large TWO SIGMA INVESTMENTS, LP $8,062,725 3.36% 797,500 View
Large Hudson Bay Capital Management LP $7,041,918 2.94% 696,530 View
Mega MILLENNIUM MANAGEMENT LLC $6,369,300 2.66% 630,000 View
Small Radcliffe Capital Management, L.P. $6,306,021 2.63% 623,741 View
Mid MOORE CAPITAL MANAGEMENT, LP $5,055,000 2.11% 500,000 View
Mid RiverNorth Capital Management, LLC $5,029,725 2.10% 497,500 View
Mid BERKLEY W R CORP $4,811,065 2.01% 475,872 View
Mid ARISTEIA CAPITAL LLC $4,589,940 1.91% 454,000 View
Small MANGROVE PARTNERS $4,549,500 1.90% 450,000 View
Large Verition Fund Management LLC $4,272,637 1.78% 422,615 View
Mid Polar Asset Management Partners Inc. $4,044,000 1.69% 400,000 View
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $4,044,000 1.69% 400,000 View
Mid Davidson Kempner Capital Management LP $4,044,000 1.69% 400,000 View
Mega GOLDMAN SACHS GROUP INC $3,501,214 1.46% 346,312 View
Mega GOLDMAN SACHS GROUP INC $3,501,214 1.46% 346,312 View
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $3,437,400 1.43% 340,000 View
Small Bulldog Investors, LLC $3,306,940 1.38% 327,096 View
Small Periscope Capital Inc. $3,012,780 1.26% 298,000 View
Micro Context Capital Management, LLC $2,535,406 1.06% 250,782 View
Small GABELLI & Co INVESTMENT ADVISERS, INC. $2,534,577 1.06% 250,700 View
Mid Whitebox Advisors LLC $2,527,500 1.05% 250,000 View
Mid WOLVERINE ASSET MANAGEMENT LLC $2,376,557 0.99% 235,070 View
Large Schonfeld Strategic Advisors LLC $2,087,624 0.87% 206,491 View
Large TORONTO DOMINION BANK $2,042,220 0.85% 202,000 View
Large Clear Street Group Inc. $2,022,080 0.84% 200,008 View
Small MMCAP International Inc. SPC $2,022,000 0.84% 200,000 View
Small Shaolin Capital Management LLC $2,022,000 0.84% 200,000 View
Large GABELLI FUNDS LLC $2,014,923 0.84% 199,300 View
Small MYDA Advisors LLC $2,011,890 0.84% 199,000 View
Small Mint Tower Capital Management B.V. $1,516,500 0.63% 150,000 View
Small Vivaldi Asset Management, LLC $1,516,500 0.63% 150,000 View
Small DLD Asset Management, LP $1,011,384 0.42% 100,038 View
Small UBS OCONNOR LLC $1,011,000 0.42% 100,000 View
Small L1 Global Manager Pty Ltd $1,011,000 0.42% 100,000 View
Large Walleye Capital LLC $758,250 0.32% 75,000 View
Mid 683 Capital Management, LLC $758,250 0.32% 75,000 View
Small DELTEC ASSET MANAGEMENT LLC $505,500 0.21% 50,000 View
Small HEIGHTS CAPITAL MANAGEMENT, INC $505,500 0.21% 50,000 View
Micro GRITSTONE ASSET MANAGEMENT LLC $499,727 0.21% 49,429 View
Mid Dakota Wealth Management $429,675 0.18% 42,500 View
Small ABC ARBITRAGE SA $252,750 0.11% 25,000 View
Large Alyeska Investment Group, L.P. $252,750 0.11% 25,000 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $237,261 0.10% 23,468 View
Mid MIZUHO SECURITIES USA LLC $168,735 0.07% 16,690 View
Mega GEODE CAPITAL MANAGEMENT, LLC $146,170 0.06% 14,458 View
Mid Virtu Financial LLC $110,997 0.05% 10,979 View
Micro Warberg Asset Management LLC $101,100 0.04% 10,000 View
Mega CITIGROUP INC $39,429 0.02% 3,900 View
Mega MORGAN STANLEY $879 0.00% 87 View

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