Pioneer Acquisition I PACH Institutional Ownership

NASDAQ PACH

$10.37 +0.00 (+0.00%)

As of: Oct 22, 2026 · 3:43 PM EDT

Institutions by Trading Activity

65 Institutions

Increased 13 20.0%

Unchanged 43 66.2%

Reduced 9 13.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

88.23%

▲+0.12 pp QoQ

Shares Held by Institutions

22.32Mn

of 25.30Mn outstanding

▲+0.14% QoQ

Shares Outstanding

25.30Mn

2.98Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+4 vs prior quarter

Net Shares Added (QoQ)

+30.12K

accumulated since last quarter

Value of Holdings

$231.47Mn

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

Updated Oct 5, 2026

Pioneer Acquisition I Corp (NASDAQ:PACH) counted 65 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Collectively, these holders controlled 88.23% of Pioneer Acquisition I's outstanding shares in Q2 2026, up from 88.11% in Q1 2026.
Total shares held in Pioneer Acquisition I rose 0.14% versus Q1 2026.
Of the 65 holders of PACH in Q2 2026, 13 added to their positions, 9 reduced their stakes and 43 left their positions unchanged.
In total, institutional investors held 22.32Mn shares of Pioneer Acquisition I at the end of Q2 2026, up 30.12K from the prior quarter.
As of June 30, 2026, Westchester Capital Management, LLC held the largest stake in Pioneer Acquisition I with 1.26Mn shares, or 4.97% of shares outstanding.
Among existing holders, the largest additions to Pioneer Acquisition I in Q2 2026 came from Wolverine Asset Management LLC (+85.68K shares), Karpus Management, Inc. (+50K shares), Parallax Volatility Advisers, L.P. (+35.51K shares), PenderFund Capital Management Ltd. (+22.97K shares) and AQR Arbitrage LLC (+8.51K shares).
Among holders that kept a stake in Pioneer Acquisition I, the biggest sellers in Q2 2026 were Healthcare of Ontario Pension Plan Trust Fund (-200K shares), Shaolin Capital Management LLC (-122.78K shares), Jain Global LLC (-113.24K shares), Wealthspring Capital LLC (-65.25K shares) and Toronto Dominion Bank (-43.88K shares).
According to Business Quant data, the leading holders of PACH for Q2 2026 were Westchester Capital Management, LLC (1.26Mn shares), D. E. Shaw & Co., Inc. (1.25Mn shares), Glazer Capital, LLC (1.21Mn shares), Linden Advisors LP (1Mn shares), Magnetar Financial LLC (1Mn shares), AQR Arbitrage LLC (956.89K shares), Two Sigma Investments, LP (797.5K shares), Wolverine Asset Management LLC (788.46K shares), Wealthspring Capital LLC (776.26K shares) and MMCAP International Inc. SPC (750K shares).

Form 13F Holdings

65 Institutional Holders

Report period 30 Jun, 2026

Total shares held 22.32Mn

Of outstanding 88.23%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Westchester Capital Management, LLC	0001512805	1,258,612	4.97%	0	0.00%	$12.85Mn
2	D. E. Shaw & Co., Inc.	0001009207	1,252,350	4.95%	0	0.00%	$12.79Mn
3	GLAZER CAPITAL, LLC	0001076809	1,210,643	4.79%	0	0.00%	$12.39K
4	LINDEN ADVISORS LP	0001279396	1,000,000	3.95%	0	0.00%	$10.21Mn
4	Magnetar Financial LLC	0001352851	1,000,000	3.95%	0	0.00%	$10.21Mn
5	AQR Arbitrage LLC	0001167456	956,895	3.78%	▲8,514	+0.90%	$9.77Mn
6	TWO SIGMA INVESTMENTS, LP	0001179392	797,500	3.15%	0	0.00%	$8.16Mn
7	WOLVERINE ASSET MANAGEMENT LLC	0001279891	788,462	3.12%	▲85,684	+12.19%	$8.07Mn
8	Wealthspring Capital LLC	0001844495	776,258	3.07%	▼65,250	-7.75%	$7.94Mn
9	MMCAP International Inc. SPC	0001304857	750,000	2.96%	0	0.00%	$7.67Mn
10	Radcliffe Capital Management, L.P.	0001218275	629,549	2.49%	▲302	+0.05%	$6.44Mn
11	TENOR CAPITAL MANAGEMENT Co., L.P.	0001346554	600,000	2.37%	0	0.00%	$6.14Mn
12	Karpus Management, Inc.	0001048703	551,988	2.18%	▲50,000	+9.96%	$5.65Mn
13	Verition Fund Management LLC	0001454027	525,558	2.08%	0	0.00%	$5.37Mn
14	PICTON MAHONEY ASSET MANAGEMENT	0001539041	500,000	1.98%	0	0.00%	$5.12Mn
14	Alberta Investment Management Corp	0001463559	500,000	1.98%	0	0.00%	$5.11Mn
14	First Trust Capital Management L.P.	0001604488	500,000	1.98%	0	0.00%	$5.12Mn
15	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	0001535845	450,000	1.78%	▼200,000	-30.77%	$4.59Mn
15	MANGROVE PARTNERS IM, LLC	0001535392	450,000	1.78%	0	0.00%	$4.60Mn
16	OMERS ADMINISTRATION Corp	0001053321	440,000	1.74%	0	0.00%	$4.49Mn

Showing 1 to 20 of 65 holders