Who Owns PIONEER ACQUISITION I CORP (PACH)? -- Institutional Holders (2026-06-30)

68 institutions reported holding $230.1M of PIONEER ACQUISITION I CORP (PACH) in SEC 13F filings for 2026-06-30. Largest institutional holders: Westchester Capital Management, LLC ($12.9M), D. E. Shaw & Co., Inc. ($12.8M), GLAZER CAPITAL, LLC ($12.4M), Linden Advisors LP ($10.2M), Magnetar Financial LLC ($10.2M). Source: SEC Form 13F.

Rank	Institution	Value	Shares	Change
1	Westchester Capital Management, LLC	$12.9M	1.3M	Hold
2	D. E. Shaw & Co., Inc.	$12.8M	1.3M	Hold
3	GLAZER CAPITAL, LLC	$12.4M	1.2M	Hold
4	Linden Advisors LP	$10.2M	1.0M	Hold
5	Magnetar Financial LLC	$10.2M	1.0M	Hold
6	AQR Arbitrage LLC	$9.8M	956,895	Added
7	TWO SIGMA INVESTMENTS, LP	$8.2M	797,500	Hold
8	WOLVERINE ASSET MANAGEMENT LLC	$8.1M	788,462	Added
9	Wealthspring Capital LLC	$7.9M	776,258	Trimmed
10	MMCAP International Inc. SPC	$7.7M	750,000	Hold
11	Radcliffe Capital Management, L.P.	$6.4M	629,549	Added
12	TENOR CAPITAL MANAGEMENT Co., L.P.	$6.1M	600,000	Hold
13	Karpus Management, Inc.	$5.6M	551,988	Added
14	Verition Fund Management LLC	$5.4M	525,558	Hold
15	PICTON MAHONEY ASSET MANAGEMENT	$5.1M	500,000	Hold
16	First Trust Capital Management L.P.	$5.1M	500,000	Hold
17	Alberta Investment Management Corp	$5.1M	500,000	Hold
18	MANGROVE PARTNERS IM, LLC	$4.6M	450,000	Hold
19	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	$4.6M	450,000	Trimmed
20	OMERS ADMINISTRATION Corp	$4.5M	440,000	Hold
21	ARISTEIA CAPITAL, L.L.C.	$4.1M	400,000	Hold
22	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	$4.1M	400,000	Hold
23	Polar Asset Management Partners Inc.	$4.1M	400,000	Hold
24	Mint Tower Capital Management B.V.	$4.1M	400,000	Hold
25	Jain Global LLC	$3.9M	386,736	Trimmed

来源：SEC 13F 申报文件 · 截至 2026-06-30