Oyster Enterprises II Acquisition OYSE Institutional Ownership

NASDAQ OYSE

$10.40 +0.00 (+0.02%)

At close: Sep 29, 2026 · 4:00 PM EDT

Institutions by Trading Activity

61 Institutions

Increased 11 18.0%

Unchanged 40 65.6%

Reduced 10 16.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

72.13%

▼-0.25 pp QoQ

Shares Held by Institutions

24.46Mn

of 33.91Mn outstanding

▲+0.16% QoQ

Shares Outstanding

33.91Mn

9.45Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+1 vs prior quarter

Net Shares Added (QoQ)

+38.93K

accumulated since last quarter

Value of Holdings

$254.42Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Oyster Enterprises II Acquisition Corp (NASDAQ:OYSE) showed up in the 13F filings of 61 institutional investors as of June 2026.

Their combined ownership stood at 72.1% of outstanding shares in June 2026, down from 72.4% in March 2026.
They increased total shares held in OYSE by 0.16% quarter over quarter, and investors in Oyster Enterprises II Acquisition stayed flat from a year ago.
Activity in OYSE broke down as 11 buyers, 10 sellers, and 40 unchanged among 61 total holders.
In total, institutional investors held 24.46Mn shares in Oyster Enterprises II Acquisition as of June 2026, up by 38.93K shares quarter on quarter, and with no net change year over year.
GLAZER CAPITAL, LLC is the top holder of Oyster Enterprises II Acquisition as of June 30, 2026, with 1.56Mn shares representing 4.61% of outstanding stock.
The most significant purchases of OYSE for the quarter ending June 2026 came from Karpus Management, Inc. (145.94K), Calamos Advisors LLC (123.09K), Limestone Investment Advisors LP (50.09K), HIGHBRIDGE CAPITAL MANAGEMENT LLC (47.91K), Schonfeld Strategic Advisors LLC (27.79K).
Top sellers of OYSE stock for the quarter ending June 2026 included METEORA CAPITAL, LLC (306.99K), Shaolin Capital Management LLC (40.0K), GABELLI FUNDS LLC (25.0K), Clear Street Group Inc. (20.59K), Verition Fund Management LLC (9.61K).
Business Quant data shows the 10 biggest positions in Oyster Enterprises II Acquisition as of June 2026 are held by GLAZER CAPITAL, LLC (1.56Mn), Magnetar Financial LLC (1.3Mn), Westchester Capital Management, LLC (1.3Mn), D. E. Shaw & Co., Inc. (1.25Mn), LINDEN ADVISORS LP (1.15Mn), AQR Arbitrage LLC (1.1Mn), LMR Partners LLP (1.1Mn), PICTON MAHONEY ASSET MANAGEMENT (1.01Mn), TENOR CAPITAL MANAGEMENT Co., L.P. (900.0K), METEORA CAPITAL, LLC (881.79K).

Form 13F Holdings

61 Institutional Holders

Report period 30 Jun, 2026

Total shares held 24.46Mn

Of outstanding 72.13%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	GLAZER CAPITAL, LLC	0001076809	1,562,348	4.61%	▲12,348	+0.80%	$16.08K
2	Magnetar Financial LLC	0001352851	1,300,000	3.83%	0	0.00%	$13.40Mn
3	Westchester Capital Management, LLC	0001512805	1,295,112	3.82%	0	0.00%	$13.35Mn
4	D. E. Shaw & Co., Inc.	0001009207	1,252,350	3.69%	0	0.00%	$12.91Mn
5	LINDEN ADVISORS LP	0001279396	1,150,000	3.39%	0	0.00%	$11.86Mn
6	AQR Arbitrage LLC	0001167456	1,100,584	3.25%	▲4,900	+0.45%	$11.35Mn
7	LMR Partners LLP	0001578621	1,100,000	3.24%	0	0.00%	$11.32Mn
8	PICTON MAHONEY ASSET MANAGEMENT	0001539041	1,015,000	2.99%	▲15,000	+1.50%	$10.44Mn
9	TENOR CAPITAL MANAGEMENT Co., L.P.	0001346554	900,000	2.65%	0	0.00%	$9.26Mn
10	METEORA CAPITAL, LLC	0001905106	881,794	2.60%	▼306,993	-25.82%	$9.07Mn
11	Karpus Management, Inc.	0001048703	803,996	2.37%	▲145,935	+22.18%	$8.27Mn
12	TWO SIGMA INVESTMENTS, LP	0001179392	797,500	2.35%	0	0.00%	$8.21Mn
13	Hudson Bay Capital Management LP	0001393825	696,530	2.05%	0	0.00%	$7.18Mn
14	MILLENNIUM MANAGEMENT LLC	0001273087	669,000	1.97%	▲11	+0.00%	$6.88Mn
15	Radcliffe Capital Management, L.P.	0001218275	623,742	1.84%	▲1	+0.00%	$6.42Mn
16	MOORE CAPITAL MANAGEMENT, LP	0001448574	500,000	1.47%	0	0.00%	$5.15Mn
17	Berkley W R Corp	0000011544	475,872	1.40%	0	0.00%	$4.91Mn
18	RIVERNORTH CAPITAL MANAGEMENT, LLC	0001447578	475,000	1.40%	0	0.00%	$4.91Mn
19	ARISTEIA CAPITAL, L.L.C.	0001080171	454,000	1.34%	0	0.00%	$4.67Mn
20	MANGROVE PARTNERS IM, LLC	0001535392	450,000	1.33%	0	0.00%	$4.63Mn

Showing 1 to 20 of 61 holders