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Pioneer Acquisition I Corp

PACHU
Exchange
Nasdaq
Industry
Blank Checks
SEC CIK
0002040381

No open-market purchases or sales by Pioneer Acquisition I Corp insiders were filed in the last 90 days; 11 institutions reported holding it in 13F filings for Q2 2026, worth $22.8M in total; no superinvestor holds it.

Other share classesPACHPACHW

13F holders, Q1 2026

Institutional positions in Pioneer Acquisition I Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
12
−3 vs. Q4 2025
Shares held
2.24M
−908.1K (−28.9%) vs. Q4 2025
Total value
$23.0M
−$9.07M (−28.3%) vs. Q4 2025
New holders
0
2 more added
Sold out
3
1 more reduced

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting PACHU on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 12 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 69 institutionsQ3 2025: 29 institutionsQ4 2025: 15 institutionsQ1 2026: 12 institutionsQ2 2026: 11 institutions
Value heldQ1 2026: $23.0M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $241.8MQ3 2025: $74.7MQ4 2025: $32.1MQ1 2026: $23.0MQ2 2026: $22.8M
Institutions holding PACHU and their total value by quarter
QuarterHoldersValue
Q2 202611$22.8M
Q1 202612$23.0M
Q4 202515$32.1M
Q3 202529$74.7M
Q2 202569$241.8M
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Pioneer Acquisition I Corp; share changes are against Q4 2025.

Institutions holding PACHU in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
LMR Partners LLP750,000$7.72M0.07%00.0%Unchanged
HGC Investment Management Inc.743,077$7.65M1.70%00.0%Unchanged
Toronto Dominion Bank362,800$3.74M0.01%+1000.0%Added
Syquant Capital SAS110,000$1.12M0.18%00.0%Unchanged
JPMorgan Chase & Co100,000$1.02M0.00%00.0%Unchanged
Lineage Point Capital LP50,867$521.1K0.13%00.0%Unchanged
Readystate Asset Management LP31,492$321.5K0.02%00.0%Unchanged
HRT Financial LP25,000$255.0K0.00%00.0%Unchanged
Yakira Capital Management, Inc.24,485$252.2K0.07%−515−2.1%Reduced
Rangeley Capital, LLC22,145$228.1K0.25%00.0%Unchanged
Clear Street Group Inc.16,455$169.5K0.00%+2,295+16.2%Added
Longfellow Investment Management Co LLC500$5.15K0.00%00.0%Unchanged
Westchester Capital Management, LLC0$00.00%−850,000−100.0%Sold out
Timelo Investment Management Inc.0$00.00%−60,000−100.0%Sold out
UBS Group AG0$00.00%−10−100.0%Sold out