Pioneer Acquisition Ownership | Who Owns Pioneer Acquisition?

Pioneer Acquisition Ownership Summary

Pioneer Acquisition is owned by 164.67% institutional investors. Westchester capital management is the largest institutional shareholder, holding 9.31% of PACH shares. The Merger Fund A is the top mutual fund, with 3.49% of its assets in Pioneer Acquisition shares.

PACH Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Pioneer Acquisition	164.67%	-	-64.67%
Industry	Financial Conglomerates Stocks	5538.39%	8.80%	-5447.19%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Westchester capital management	1.26M	9.31%	$12.79M
D. e. shaw	1.25M	9.27%	$12.72M
Glazer capital	1.21M	8.96%	$12.26M
Magnetar financial	1.00M	7.40%	$10.19M
Linden advisors lp	1.00M	7.40%	$10.16M
Aqr arbitrage	948.38K	7.02%	$9.64M
Wealthspring capital	841.51K	6.23%	$8.52B
Two sigma investments, lp	797.50K	5.90%	$8.08M
Mmcap inc. spc	750.00K	5.55%	$7.60M
Wolverine asset management	702.78K	5.20%	$7.14M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Wealthspring capital	841.51K	2.02%	$8.52B
Kepos capital lp	47.10K	0.78%	$478.00K
Gritstone asset management	69.32K	0.75%	$702.25K
Mmcap inc. spc	750.00K	0.66%	$7.60M
Westchester capital management	1.26M	0.58%	$12.79M
Timelo investment management	60.00K	0.48%	$607.80K
Radcliffe capital management	629.25K	0.48%	$6.38M
Mangrove partners	450.00K	0.37%	$4.56M
Mint tower capital management b.v.	400.00K	0.36%	$4.05M
Periscope capital	300.00K	0.34%	$3.04M

Top Buyers

Holder	Shares	% Assets	Change
Westchester capital management	1.26M	0.58%	850.00K
Wolverine asset management	702.78K	0.07%	190.27K
Glazer capital	1.21M	0.26%	159.99K
Sona asset management (us)	111.06K	0.02%	111.06K
Parallax volatility advisers	94.40K	0.00%	94.40K

Top Sellers

Holder	Shares	% Assets	Change
Meteora capital	-	-	-549.97K
Clear street group	149.46K	0.01%	-168.99K
Stonex group	-	-	-155.00K
Periscope capital	300.00K	0.34%	-100.00K
Polar asset management partners	400.00K	0.08%	-100.00K

New Positions

Holder	Shares	% Assets	Change	Value
Sona asset management (us)	111.06K	0.02%	111.06K	$1.13M
Parallax volatility advisers	94.40K	0.00%	94.40K	$960.53K
Timelo investment management	60.00K	0.48%	60.00K	$607.80K
Kepos capital lp	47.10K	0.78%	47.10K	$478.00K
Ubs group	9.06K	-	9.06K	$91.78K

Sold Out

Holder	Change
Virtu financial	-34.20K
Mizuho securities usa	-50.92K
Stonex group	-155.00K
Meteora capital	-549.97K

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	60	1.69%	22,257,184	2.37%	164	2.23%	14	-36.36%	10	-
Dec 31, 2025	14	-68.18%	4,386,504	-74.97%	17	0.36%	4	-90.91%	4	-
Sep 30, 2025	43	-	17,274,866	-	68	-	43	-	-	-

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
The Merger Fund A	993.53K	3.49%	709.80K
Westchester Merger Arbitrage Composite	993.53K	3.49%	709.80K
First Trust Merger Arbitrage Cl I	497.10K	1.57%	497.10K
PICTON Arbitrage Plus Alternative Fund F	411.50K	1.30%	-
Westchester Credit Event Composite	99.05K	0.35%	23.46K
Virtus Westchester Credit Event Fd I	99.05K	0.35%	23.46K
Karpus Taxable Fixed Income	89.00K	0.31%	38.35K
First Trust Multi-Strategy Cl I	84.60K	0.27%	84.60K
RiverNorth Opportunities	66.67K	0.23%	-
Amundi Tiedemann Arbitrage Strat I USD	66.50K	0.21%	66.50K

PACH Ownership FAQ

Who Owns Pioneer Acquisition?

Pioneer Acquisition shareholders are primarily institutional investors at 164.67%, followed by 0% insiders and 0% retail investors. The average institutional ownership in Pioneer Acquisition's industry, Financial Conglomerates Stocks, is 5538.39%, which Pioneer Acquisition falls below.

Who owns the most shares of Pioneer Acquisition?

Pioneer Acquisition’s largest shareholders are Westchester capital management (1.26M shares, 9.31%), D. e. shaw (1.25M shares, 9.27%), and Glazer capital (1.21M shares, 8.96%). Together, they hold 27.53% of Pioneer Acquisition’s total shares outstanding.

Does Blackrock own Pioneer Acquisition?

BlackRock is not among the top 10 institutional shareholders of Pioneer Acquisition.

Who is Pioneer Acquisition’s biggest shareholder by percentage of total assets invested?

Wealthspring capital is Pioneer Acquisition’s biggest shareholder by percentage of total assets invested, with 2.02% of its assets in 841.51K Pioneer Acquisition shares, valued at 8.52B$.

Who is the top mutual fund holder of Pioneer Acquisition shares?

The Merger Fund A is the top mutual fund holder of Pioneer Acquisition shares, with 3.49% of its total shares outstanding invested in 993.53K Pioneer Acquisition shares.

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