Pioneer Acquisition I Corp(PACH)

$10.27—

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Pioneer Acquisition I Corp(PACH)

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$10.27—

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PACH(PACH)

PACH

Overview Notebook Intelligence Chart History Fundmntls TTM Earnings Analysts News Financials Segments Insiders Institl.DCF Peers

Institutional Ownership

Top 62 Institutional Holders

Holder	Shares	Date	Change	% Held
FNY Investment Advisers, LLC	--	Jun 30, 26	-1.00K	--
Westchester Capital Management, LLC	1.26M	Mar 31, 26	+850.00K	3.98%
D. E. Shaw & Co., Inc.	1.25M	Mar 31, 26	--	3.96%
GLAZER CAPITAL, LLC	1.21M	Mar 31, 26	+159.99K	3.83%
LINDEN ADVISORS LP	1.00M	Mar 31, 26	--	3.16%
Magnetar Financial LLC	1.00M	Mar 31, 26	--	3.16%
AQR Arbitrage LLC	948.38K	Mar 31, 26	-36.23K	3.00%
Wealthspring Capital LLC	841.51K	Mar 31, 26	-8.83K	2.66%
TWO SIGMA INVESTMENTS, LP	797.50K	Mar 31, 26	--	2.52%
MMCAP International Inc. SPC	750.00K	Mar 31, 26	--	2.37%
WOLVERINE ASSET MANAGEMENT LLC	702.78K	Mar 31, 26	+190.27K	2.22%
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	650.00K	Mar 31, 26	--	2.06%
Radcliffe Capital Management, L.P.	629.25K	Mar 31, 26	--	1.99%
TENOR CAPITAL MANAGEMENT Co., L.P.	600.00K	Mar 31, 26	--	1.90%
Verition Fund Management LLC	525.56K	Mar 31, 26	-18.64K	1.66%
Karpus Management, Inc.	501.99K	Mar 31, 26	+20.90K	1.59%
Alberta Investment Management Corp	500.00K	Mar 31, 26	--	1.58%
First Trust Capital Management L.P.	500.00K	Mar 31, 26	--	1.58%
Shaolin Capital Management LLC	500.00K	Mar 31, 26	--	1.58%
PICTON MAHONEY ASSET MANAGEMENT	500.00K	Mar 31, 26	--	1.58%
Jain Global LLC	499.98K	Mar 31, 26	-21	1.58%
MANGROVE PARTNERS	450.00K	Mar 31, 26	--	1.42%
OMERS ADMINISTRATION Corp	440.00K	Mar 31, 26	--	1.39%
Mint Tower Capital Management B.V.	400.00K	Mar 31, 26	--	1.26%
ARISTEIA CAPITAL LLC	400.00K	Mar 31, 26	--	1.26%
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	400.00K	Mar 31, 26	--	1.26%
Polar Asset Management Partners Inc.	400.00K	Mar 31, 26	-100.00K	1.26%
BNP PARIBAS ARBITRAGE, SNC	348.49K	Mar 31, 26	+40.08K	1.10%
WHITEBOX ADVISORS LLC	300.00K	Mar 31, 26	--	0.95%
PERISCOPE CAPITAL INC.	300.00K	Mar 31, 26	-100.00K	0.95%
MILLENNIUM MANAGEMENT LLC	287.70K	Mar 31, 26	+18.20K	0.91%
Ghisallo Capital Management LLC	250.00K	Mar 31, 26	--	0.79%
MOORE CAPITAL MANAGEMENT, LP	250.00K	Mar 31, 26	--	0.79%
RIVERNORTH CAPITAL MANAGEMENT, LLC	249.76K	Mar 31, 26	--	0.79%
Hudson Bay Capital Management LP	246.00K	Mar 31, 26	--	0.78%
CSS LLC/IL	210.99K	Mar 31, 26	-1.40K	0.67%
TORONTO DOMINION BANK	168.88K	Mar 31, 26	+23.88K	0.53%
TIG Advisors, LLC	150.00K	Mar 31, 26	--	0.47%
Context Capital Management, LLC	150.00K	Mar 31, 26	--	0.47%
Clear Street Group Inc.	149.46K	Mar 31, 26	-168.99K	0.47%
BERKLEY W R CORP	148.73K	Mar 31, 26	--	0.47%
DLD Asset Management, LP	127.74K	Mar 31, 26	--	0.40%
SONA ASSET MANAGEMENT (US) LLC	111.06K	Mar 31, 26	+111.06K	0.35%
Dakota Wealth Management	104.10K	Mar 31, 26	-4.90K	0.33%
HEIGHTS CAPITAL MANAGEMENT, INC	100.00K	Mar 31, 26	--	0.32%
Governors Lane LP	100.00K	Mar 31, 26	--	0.32%
Parallax Volatility Advisers, L.P.	94.40K	Mar 31, 26	+94.40K	0.30%
BOOTHBAY FUND MANAGEMENT, LLC	83.39K	Mar 31, 26	--	0.26%
GRITSTONE ASSET MANAGEMENT LLC	69.32K	Mar 31, 26	--	0.22%
Timelo Investment Management Inc.	60.00K	Mar 31, 26	+60.00K	0.19%
Centiva Capital, LP	50.00K	Mar 31, 26	--	0.16%
Kepos Capital LP	47.10K	Mar 31, 26	+47.10K	0.15%
ABC ARBITRAGE SA	25.00K	Mar 31, 26	--	0.08%
PenderFund Capital Management Ltd.	15.20K	Mar 31, 26	-2.20K	0.05%
DELTEC ASSET MANAGEMENT LLC	10.00K	Mar 31, 26	--	0.03%
UBS Group AG	9.06K	Mar 31, 26	+9.06K	0.03%
MORGAN STANLEY	68	Mar 31, 26	+1	0.00%
Virtu Financial LLC	--	Mar 31, 26	-34.20K	--
MIZUHO SECURITIES USA LLC	--	Mar 31, 26	-50.92K	--
METEORA CAPITAL, LLC	--	Mar 31, 26	-549.97K	--
UBS OCONNOR LLC	250.00K	Dec 31, 25	--	0.79%
ATW SPAC MANAGEMENT LLC	83.39K	Sep 30, 25	+83.39K	0.26%

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Holder

Date

Change

% Held

FNY Investment Advisers, LLC

Jun 30, 26

-1.00K

Westchester Capital Management, LLC

1.26M

Mar 31, 26

+850.00K

3.98%

D. E. Shaw & Co., Inc.

1.25M

Mar 31, 26

3.96%

GLAZER CAPITAL, LLC

1.21M

Mar 31, 26

+159.99K

3.83%

LINDEN ADVISORS LP

1.00M

Mar 31, 26

3.16%

Magnetar Financial LLC

1.00M

Mar 31, 26

3.16%

AQR Arbitrage LLC

948.38K

Mar 31, 26

-36.23K

3.00%

Wealthspring Capital LLC

841.51K

Mar 31, 26

-8.83K

2.66%

TWO SIGMA INVESTMENTS, LP

797.50K

Mar 31, 26

2.52%

MMCAP International Inc. SPC

750.00K

Mar 31, 26

2.37%

WOLVERINE ASSET MANAGEMENT LLC

702.78K

Mar 31, 26

+190.27K

2.22%

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

650.00K

Mar 31, 26

2.06%

Radcliffe Capital Management, L.P.

629.25K

Mar 31, 26

1.99%

TENOR CAPITAL MANAGEMENT Co., L.P.

600.00K

Mar 31, 26

1.90%

Verition Fund Management LLC

525.56K

Mar 31, 26

-18.64K

1.66%

Karpus Management, Inc.

501.99K

Mar 31, 26

+20.90K

1.59%

Alberta Investment Management Corp

500.00K

Mar 31, 26

1.58%

First Trust Capital Management L.P.

500.00K

Mar 31, 26

1.58%

Shaolin Capital Management LLC

500.00K

Mar 31, 26

1.58%

PICTON MAHONEY ASSET MANAGEMENT

500.00K

Mar 31, 26

1.58%

Jain Global LLC

499.98K

Mar 31, 26

-21

1.58%

MANGROVE PARTNERS

450.00K

Mar 31, 26

1.42%

OMERS ADMINISTRATION Corp

440.00K

Mar 31, 26

1.39%

Mint Tower Capital Management B.V.

400.00K

Mar 31, 26

1.26%

ARISTEIA CAPITAL LLC

400.00K

Mar 31, 26

1.26%

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

400.00K

Mar 31, 26

1.26%

Polar Asset Management Partners Inc.

400.00K

Mar 31, 26

-100.00K

1.26%

BNP PARIBAS ARBITRAGE, SNC

348.49K

Mar 31, 26

+40.08K

1.10%

WHITEBOX ADVISORS LLC

300.00K

Mar 31, 26

0.95%

PERISCOPE CAPITAL INC.

300.00K

Mar 31, 26

-100.00K

0.95%

MILLENNIUM MANAGEMENT LLC

287.70K

Mar 31, 26

+18.20K

0.91%

Ghisallo Capital Management LLC

250.00K

Mar 31, 26

0.79%

MOORE CAPITAL MANAGEMENT, LP

250.00K

Mar 31, 26

0.79%

RIVERNORTH CAPITAL MANAGEMENT, LLC

249.76K

Mar 31, 26

0.79%

Hudson Bay Capital Management LP

246.00K

Mar 31, 26

0.78%

CSS LLC/IL

210.99K

Mar 31, 26

-1.40K

0.67%

TORONTO DOMINION BANK

168.88K

Mar 31, 26

+23.88K

0.53%

TIG Advisors, LLC

150.00K

Mar 31, 26

0.47%

Context Capital Management, LLC

150.00K

Mar 31, 26

0.47%

Clear Street Group Inc.

149.46K

Mar 31, 26

-168.99K

0.47%

BERKLEY W R CORP

148.73K

Mar 31, 26

0.47%

DLD Asset Management, LP

127.74K

Mar 31, 26

0.40%

SONA ASSET MANAGEMENT (US) LLC

111.06K

Mar 31, 26

+111.06K

0.35%

Dakota Wealth Management

104.10K

Mar 31, 26

-4.90K

0.33%

HEIGHTS CAPITAL MANAGEMENT, INC

100.00K

Mar 31, 26

0.32%

Governors Lane LP

100.00K

Mar 31, 26

0.32%

Parallax Volatility Advisers, L.P.

94.40K

Mar 31, 26

+94.40K

0.30%

BOOTHBAY FUND MANAGEMENT, LLC

83.39K

Mar 31, 26

0.26%

GRITSTONE ASSET MANAGEMENT LLC

69.32K

Mar 31, 26

0.22%

Timelo Investment Management Inc.

60.00K

Mar 31, 26

+60.00K

0.19%

Centiva Capital, LP

50.00K

Mar 31, 26

0.16%

Kepos Capital LP

47.10K

Mar 31, 26

+47.10K

0.15%

ABC ARBITRAGE SA

25.00K

Mar 31, 26

0.08%

PenderFund Capital Management Ltd.

15.20K

Mar 31, 26

-2.20K

0.05%

DELTEC ASSET MANAGEMENT LLC

10.00K

Mar 31, 26

0.03%

UBS Group AG

9.06K

Mar 31, 26

+9.06K

0.03%

MORGAN STANLEY

Mar 31, 26

0.00%

Virtu Financial LLC

Mar 31, 26

-34.20K

MIZUHO SECURITIES USA LLC

Mar 31, 26

-50.92K

METEORA CAPITAL, LLC

Mar 31, 26

-549.97K

UBS OCONNOR LLC

250.00K

Dec 31, 25

0.79%

ATW SPAC MANAGEMENT LLC

83.39K

Sep 30, 25

+83.39K

0.26%