Pioneer Acquisition I Corp

PACH

Exchange: Nasdaq
Industry: Blank Checks
SEC CIK: 0002040381

SEC filings (opens in a new tab)

No open-market purchases or sales by Pioneer Acquisition I Corp insiders were filed in the last 90 days; 67 institutions reported holding it in 13F filings for Q2 2026, worth $230.1M in total; no superinvestor holds it.

Other share classesPACHU PACHW

Q3 2025 vs. Q2 2025

How the institutions holding Pioneer Acquisition I Corp changed between Q2 2025 and Q3 2025.

All holders in Q3 2025 All holders in Q2 2025

13F holders of PACH: Q2 2025 compared with Q3 2025
Measure	Q2 2025	Q3 2025	Change
Holders	0	44	+44
Shares	0	17.5M	+17.5M
Value	$0	$174.3M	+$174.3M

New holders (44)

Institutions that held Pioneer Acquisition I Corp at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to PACH in Q3 2025
Institution	Shares	Value	% of portfolio
Glazer Capital, LLC	1,050,650	$10.4M	0.35%
Linden Advisors LP	1,000,000	$9.94M	0.07%
CNH Partners LLC	984,608	$9.79M	0.25%
Wealthspring Capital LLC	883,286	$8.78M	2.09%
Two Sigma Investments, LP	797,500	$7.93M	0.01%
Clear Street Group Inc.	723,060	$7.20M	0.04%
Shaolin Capital Management LLC	700,000	$6.97M	0.33%
D. E. Shaw & Co., Inc.	691,682	$6.88M	0.01%
Wolverine Asset Management LLC	677,208	$6.73M	0.10%
Healthcare of Ontario Pension Plan Trust Fund	650,000	$6.46M	0.01%
Tenor Capital Management Co., L.P.	600,000	$5.98M	0.08%
Radcliffe Capital Management, L.P.	592,475	$5.90M	0.37%
Verition Fund Management LLC	550,000	$5.47M	0.03%
Polar Asset Management Partners Inc.	500,000	$4.98M	0.10%
Vivaldi Asset Management, LLC	500,000	$4.98M	0.32%
Picton Mahoney Asset Management	500,000	$4.97M	0.06%
Periscope Capital Inc.	475,000	$4.73M	1.15%
Mangrove Partners	450,000	$4.48M	0.37%
Aristeia Capital LLC	400,000	$3.98M	0.12%
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	400,000	$3.98M	0.02%
Toronto Dominion Bank	368,629	$3.67M	0.01%
BNP Paribas Arbitrage, SA	308,414	$3.07M	0.00%
Whitebox Advisors LLC	300,000	$2.99M	0.06%
Mizuho Securities USA LLC	301,302	$2.99M	0.06%
Millennium Management LLC	285,001	$2.84M	0.00%
Virtu Financial LLC	261,126	$2.60M	0.14%
Moore Capital Management, LP	250,000	$2.49M	0.05%
UBS Oconnor LLC	250,000	$2.48M	0.07%
Ghisallo Capital Management LLC	250,000	$2.48M	0.08%
Hudson Bay Capital Management LP	246,000	$2.45M	0.01%
CSS LLC	212,388	$2.12M	0.13%
Rivernorth Capital Management, LLC	183,093	$1.82M	0.10%
Karpus Management, Inc.	160,000	$1.59M	0.05%
StoneX Group Inc.	155,000	$1.54M	0.07%
Context Capital Management, LLC	150,000	$1.49M	0.05%
Berkley W R Corp	148,726	$1.48M	0.10%
Dakota Wealth Management	109,000	$1.08M	0.02%
Governors Lane LP	100,000	$995.0K	0.14%
Atw Spac Management LLC	83,391	$830.6K	1.05%
Boothbay Fund Management, LLC	83,391	$829.7K	0.02%
Gritstone Asset Management LLC	69,324	$690.5K	0.71%
Westchester Capital Management, LLC	64,612	$642.2K	0.03%
Centiva Capital, LP	50,000	$497.0K	0.05%
Deltec Asset Management LLC	10,000	$99.4K	0.02%

Sold out (0)

Institutions that held Pioneer Acquisition I Corp at the end of Q2 2025 and filed for Q3 2025 without it.

None.