Pioneer Acquisition I Corp Class A Ordinary Shares

PACH • NASDAQ

Pioneer Acquisition I Corp Class A Ordinary Shares is a blank checks company on NASDAQ, with a market cap of $319.3M. As of Q3 2025, 75% of shares are held by 65 institutional investors, with GLAZER CAPITAL, LLC as the largest holder at 3.32%.

Market Cap$319.3M

BLANK CHECKS

Overview

Overview of institutional ownership in PACH as of Q3 2025 with a market cap of $315.0M

All Institutions

Institutions: 65
Value Held: $236.1M
Shares Held: 23.7M
Avg Position: $3.6M
Median Position: $2.6M

Hedge Funds

Hedge Funds: 33
Value Held: $139.0M
Shares Held: 13.9M
Avg Position: $4.2M
Median Position: $3.0M

Ownership Breakdown

Institutional (non-HF)

30.86%

$97.2M

Hedge Funds

44.11%

$139.0M

Retail & Other

25.03%

$78.8M

Based on market cap of $315.0M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in PACH as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
GLAZER CAPITAL, LLC Hedge Fund•Multi-Strategy	Paul Jay Glazer CEO	$10.5M 0.47% of portfolio	3.32% 1.1M shares	Q3 2025 Held for 2 months	$2.2B
Magnetar Financial LLC Hedge Fund•Multi-Strategy	David Jay Snyderman CEO	$10.0M 0.06% of portfolio	3.16% 1.0M shares	Q3 2025 Held for 2 months	$15.4B
LINDEN ADVISORS LP Hedge Fund•Multi-Strategy	Siu Min (Joe) Wong CEO	$10.0M 1.03% of portfolio	3.16% 1.0M shares	Q2 2025 Held for 5 months	$971.4M
CNH PARTNERS LLC Hedge Fund•Multi-Strategy	Herbert James Willcox CCO	$9.8M 0.36% of portfolio	3.11% 984.6K shares	Q2 2025 Held for 5 months	$2.7B
Westchester Capital Management, LLC Hedge Fund•Merger Arb	George Robert Aylward CEO	$9.2M 0.50% of portfolio	2.89% 914.6K shares	Q2 2025 Held for 5 months	$1.8B
Wealthspring Capital LLC Hedge Fund•Event Driven	Matthew Simpson Managing Partner	$8.8M 2.47% of portfolio	2.79% 883.3K shares	Q2 2025 Held for 5 months	$355.5M
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	Scott David Hoffman CEO	$7.9M 0.01% of portfolio	2.52% 797.5K shares	Q2 2025 Held for 5 months	$62.0B
M MMCAP International Inc. SPC Institution	-	$7.5M 1.00% of portfolio	2.37% 750.0K shares	Q2 2025 Held for 5 months	$752.3M
L LMR Partners LLP Institution	-	$7.5M 0.15% of portfolio	2.37% 750.0K shares	Q2 2025 Held for 5 months	$5.1B
HGC Investment Management Inc. Private Equity	Jason Frederick Young CFO	$7.5M 3.38% of portfolio	2.35% 743.1K shares	Q2 2025 Held for 5 months	$221.0M

Net Capital Flow

Institutional buying and selling activity for PACH in Q3 2025

Traded: +$69.9M
Buyers: 32
Sellers: 19
Total Bought: +$95.7M
Total Sold: −$25.8M
Avg Position: $3.2M

Biggest Buyers

Institution	Net Bought	Current Position
GLAZER CAPITAL, LLC Hedge Fund•Multi-Strategy	+$10.5M +-10.4K shares	$10.5M 1.1M shares
Magnetar Financial LLC Hedge Fund•Multi-Strategy	+$10.0M +- shares	$10.0M 1.0M shares
D D. E. Shaw & Co., Inc. Institution	+$6.9M +691.7K shares	$6.9M 691.7K shares
Westchester Capital Management, LLC Hedge Fund•Merger Arb	+$6.7M +664.6K shares	$9.2M 914.6K shares
T TENOR CAPITAL MANAGEMENT Co., L.P. Hedge Fund•Multi-Strategy	+$6.0M +- shares	$6.0M 600.0K shares
Verition Fund Management LLC Hedge Fund•Multi-Strategy	+$5.5M +50.0K shares	$5.5M 550.0K shares
P PICTON MAHONEY ASSET MANAGEMENT Institution	+$5.0M +- shares	$5.0M 500.0K shares
H Her Majesty the Queen in Right of the Province of Alberta as represented by Alberta Investment Management Corp Institution	+$5.0M +- shares	$5.0M 500.0K shares
MANGROVE PARTNERS Hedge Fund•Multi-Strategy	+$4.5M +450.0K shares	$4.5M 450.0K shares
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$4.0M +401.2K shares	$6.7M 677.2K shares

Biggest Sellers

Institution	Net Sold	Current Position
OZ MANAGEMENT LP Hedge Fund•Multi-Strategy	−$5.0M −500.0K shares	Sold Off 0 shares
H HIGHBRIDGE CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$5.0M −499.2K shares	Sold Off 0 shares
C CANTOR FITZGERALD, L. P. Institution	−$3.5M −350.0K shares	$370.8K 36.9K shares
CNH PARTNERS LLC Hedge Fund•Multi-Strategy	−$3.1M −308.4K shares	$9.8M 984.6K shares
S Saba Capital Management, L.P. Hedge Fund•Multi-Strategy	−$3.0M −298.5K shares	Sold Off 0 shares
PERISCOPE CAPITAL INC. Institution	−$905.5K −91.0K shares	$4.7M 475.0K shares
A Alpine Partners VI, LLC Institution	−$753.8K −75.0K shares	$2.3M 225.0K shares
A ATW SPAC MANAGEMENT LLC Institution	−$663.4K −66.6K shares	$830.6K 83.4K shares
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds	−$662.8K −66.6K shares	$829.7K 83.4K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$647.4K −65.0K shares	$2.8M 285.0K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited PACH in Q3 2025

New Positions: 22
New Value: $77.1M
Exited Positions: 9
Exited Value: $15.2M

New Positions

Institution	Position Value
GLAZER CAPITAL, LLC Hedge Fund•Multi-Strategy	$10.5M 1.1M shares
Magnetar Financial LLC Hedge Fund•Multi-Strategy	$10.0M 1.0M shares
D D. E. Shaw & Co., Inc. Institution	$6.9M 691.7K shares
T TENOR CAPITAL MANAGEMENT Co., L.P. Hedge Fund•Multi-Strategy	$6.0M 600.0K shares
Verition Fund Management LLC Hedge Fund•Multi-Strategy	$5.5M 550.0K shares
H Her Majesty the Queen in Right of the Province of Alberta as represented by Alberta Investment Management Corp Institution	$5.0M 500.0K shares
P PICTON MAHONEY ASSET MANAGEMENT Institution	$5.0M 500.0K shares
MANGROVE PARTNERS Hedge Fund•Multi-Strategy	$4.5M 450.0K shares
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS Private Equity	$4.0M 400.0K shares
ARISTEIA CAPITAL LLC Hedge Fund•Multi-Strategy	$4.0M 400.0K shares

Exited Positions

Institution	Previous Position
OZ MANAGEMENT LP Hedge Fund•Multi-Strategy	$5.0M 500.0K shares
H HIGHBRIDGE CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	$5.0M 499.2K shares
S Saba Capital Management, L.P. Hedge Fund•Multi-Strategy	$3.0M 298.5K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$561.8K 56.1K shares
Bulldog Investors, LLC Hedge Fund•Activist	$550.3K 55.0K shares
C Crossingbridge Advisors, LLC Long Only Manager	$488.2K 48.8K shares
Decagon Asset Management LLP Hedge Fund•Event Driven	$346.3K 34.6K shares
Meteora Capital, LLC Hedge Fund•Event Driven	$300.0K 30.0K shares
Weiss Asset Management LP Hedge Fund•Multi-Strategy	- 500.0K shares

Options Activity

Institutions with the largest Call and Put options positions in PACH as of Q3 2025

Call Positions: 0
Call Value: -
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
No call positions found

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

Institutions with PACH as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
HGC Investment Management Inc. Private Equity	Jason Frederick Young CFO	3.38% $7.5M	2.35% 743.1K shares	Q2 2025 Held for 5 months	$221.0M
Wealthspring Capital LLC Hedge Fund•Event Driven	Matthew Simpson Managing Partner	2.47% $8.8M	2.79% 883.3K shares	Q2 2025 Held for 5 months	$355.5M
Shaolin Capital Management LLC Hedge Fund•Multi-Strategy	David Barry Puritz CIO	1.55% $7.0M	2.21% 700.0K shares	Q2 2025 Held for 5 months	$449.9M
A ATW SPAC MANAGEMENT LLC Institution	-	1.35% $830.6K	0.26% 83.4K shares	Q2 2025 Held for 5 months	$61.6M
Radcliffe Capital Management, L.P. Hedge Fund•Multi-Strategy	Steve Brett Katznelson CIO	1.30% $5.9M	1.87% 592.5K shares	Q2 2025 Held for 5 months	$452.3M
PERISCOPE CAPITAL INC. Institution	Scott Allen Hayes President	1.30% $4.7M	1.50% 475.0K shares	Q2 2025 Held for 5 months	$363.3M
M Mint Tower Capital Management B.V. Institution	-	1.19% $4.0M	1.26% 400.0K shares	Q3 2025 Held for 2 months	$333.7M
LINDEN ADVISORS LP Hedge Fund•Multi-Strategy	Siu Min (Joe) Wong CEO	1.03% $10.0M	3.16% 1.0M shares	Q2 2025 Held for 5 months	$971.4M
T Timelo Investment Management Inc. Institution	-	1.01% $597.6K	0.19% 60.0K shares	Q2 2025 Held for 5 months	$59.3M
M MMCAP International Inc. SPC Institution	-	1.00% $7.5M	2.37% 750.0K shares	Q2 2025 Held for 5 months	$752.3M