Who owns OYSEWhat OYSE owns — n/a

Who owns Oyster Enterprises II Acquisition Corp?

Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.

Institutional ownership of OYSE from SEC Form 13F filings across 62 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.

As of the 2026-06-30 reporting period, 62 institutions disclosed 24.5M shares of Oyster Enterprises II Acquisition Corp worth $252.4M — about 94.3% of shares outstanding; the largest disclosed holder is GLAZER CAPITAL, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.

13F holders

$252.4M

value, 2026 filers

94.3%

of shares outstanding (24.5M sh)

new positions (2026 filers)

Top institutional holders

ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of OYSE's shares outstanding

#	Manager	Shares	Value	% of fund	% of co.	Δ shares QoQ
1	GLAZER CAPITAL, LLC	1.6M	$16.1M	0.4%	6%	+0.8%
2	Magnetar Financial LLC	1.3M	$13.4M	0.1%	5%	0.0%
3	Westchester Capital Management, LLC	1.3M	$13.4M	0.7%	5%	0.0%
4	D. E. Shaw & Co., Inc.	1.3M	$12.9M	0.0%	4.8%	0.0%
5	Linden Advisors LP	1.1M	$11.9M	0.1%	4.4%	0.0%
6	AQR Arbitrage LLC	1.1M	$11.3M	0.2%	4.2%	+0.4%
7	LMR Partners LLP	1.1M	$11.3M	0.0%	4.2%	0.0%
8	PICTON MAHONEY ASSET MANAGEMENT	1.0M	$10.4M	0.1%	3.9%	+1.5%
9	TENOR CAPITAL MANAGEMENT Co., L.P.	900,000	$9.3M	0.1%	3.5%	0.0%
10	Meteora Capital, LLC	881,794	$9.1M	0.8%	3.4%	-25.8%
11	Karpus Management, Inc.	803,996	$8.3M	0.2%	3.1%	+22.2%
12	TWO SIGMA INVESTMENTS, LP	797,500	$8.2M	0.0%	3.1%	0.0%
13	Hudson Bay Capital Management LP	696,530	$7.2M	0.0%	2.7%	0.0%
14	MILLENNIUM MANAGEMENT LLC	669,000	$6.9M	0.0%	2.6%	0.0%
15	Radcliffe Capital Management, L.P.	623,742	$6.4M	0.5%	2.4%	0.0%
16	MOORE CAPITAL MANAGEMENT, LP	500,000	$5.1M	0.1%	1.9%	0.0%
17	BERKLEY W R CORP	475,872	$4.9M	0.2%	1.8%	0.0%
18	RIVERNORTH CAPITAL MANAGEMENT, LLC	475,000	$4.9M	0.2%	1.8%	0.0%
19	ARISTEIA CAPITAL, L.L.C.	454,000	$4.7M	0.1%	1.7%	0.0%
20	MANGROVE PARTNERS IM, LLC	450,000	$4.6M	0.3%	1.7%	0.0%
21	Davidson Kempner Capital Management LP	400,000	$4.1M	0.0%	1.5%	0.0%
22	Alberta Investment Management Corp	400,000	$4.1M	0.0%	1.5%	0.0%
23	Polar Asset Management Partners Inc.	399,800	$4.1M	0.1%	1.5%	0.0%
24	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	350,000	$3.6M	0.0%	1.3%	0.0%
25	GOLDMAN SACHS GROUP INC	346,312	$3.6M	0.0%	1.3%	0.0%

Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.