Pioneer Acquisition I (PACH): which funds own it
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Sections with a free account
No concentrated manager holds it.
Who owns Pioneer Acquisition I?
Holders that filed a Schedule 13D or 13G with the SEC for owning more than 5% of the shares: Barclays (13G filed Nov 12, 2025), D. E. Shaw (13G filed May 15, 2026), Westchester Capital Management (13G filed May 15, 2026) and Glazer Capital (13G filed May 14, 2026). As of Jun 30, 2026, the largest holders reported on Form 13F were Westchester Capital Management (1.3 million shares), D. E. Shaw (1.3 million shares) and Glazer Capital (1.2 million shares).
Which institutions hold the most Pioneer Acquisition I shares?
Per Form 13F filings as of Jun 30, 2026:
- 1. Westchester Capital Management: 1.3 million shares
- 2. D. E. Shaw: 1.3 million shares
- 3. Glazer Capital: 1.2 million shares
- 4. Linden Advisors: 1.0 million shares
- 5. Magnetar Financial: 1.0 million shares
- 6. AQR Arbitrage: 956,895 shares
- 7. Two Sigma Investments: 797,500 shares
- 8. Wolverine Asset Management: 788,462 shares
- 9. Wealthspring Capital: 776,258 shares
- 10. MMCAP International Inc. SPC: 750,000 shares
Sources:13G by Barclays (Nov 12, 2025) ↗13G by D. E. Shaw (May 15, 2026) ↗13G by Westchester Capital Management (May 15, 2026) ↗13G by Glazer Capital (May 14, 2026) ↗All of the company's proxy statements on EDGAR ↗
With more than one share class, a 13D or 13G counts shares convertible from another class as owned, so we do not show its percentage. We hold 13D and 13G filings made since Dec 23, 2024: a holder above 5% that has not filed since then does not appear here.
Quarter flow (concentrated managers)
Concentrated managers holding it
None in the latest quarter.
Largest holders of PACH (all 13F filers)
- Westchester Capital Management1.3 MInvestment firm0
- D. E. Shaw1.3 MQuant or multi-manager0
- Glazer Capital1.2 MType not verified0
- Linden Advisors1.0 MType not verified0
- Magnetar Financial1.0 MType not verified0
- AQR Arbitrage957 KType not verified+8,514
- Two Sigma Investments798 KQuant or multi-manager0
- Wolverine Asset Management788 KType not verified+86 K
- Wealthspring Capital776 KType not verified−65 K
- MMCAP International Inc. SPC750 KType not verified0
- Shares
- 1.3 M
- Change
- 0
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- Type
- Investment firm
- Value
- $12.9M
- Shares
- 1.3 M
- Change
- 0
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- Type
- Quant or multi-manager
- Value
- $12.8M
- Shares
- 1.2 M
- Change
- 0
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- Type
- Type not verified
- Value
- $12.4M
- Shares
- 1.0 M
- Change
- 0
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- Type
- Type not verified
- Value
- $10.2M
- Shares
- 1.0 M
- Change
- 0
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- Type
- Type not verified
- Value
- $10.2M
- Shares
- 957 K
- Change
- +8,514
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- Type
- Type not verified
- Value
- $9.8M
- Shares
- 798 K
- Change
- 0
See more
- Type
- Quant or multi-manager
- Value
- $8.2M
- Shares
- 788 K
- Change
- +86 K
See more
- Type
- Type not verified
- Value
- $8.1M
- Wealthspring Capital
- Shares
- 776 K
- Change
- −65 K
See more
- Type
- Type not verified
- Value
- $7.9M
- Shares
- 750 K
- Change
- 0
See more
- Type
- Type not verified
- Value
- $7.7M
The 10 13F filers with the most shares as of Jun 30, 2026, whatever their type (index firms usually come first). “Change”: shares added or cut versus the previous quarter, split-adjusted; “no data” = there is no comparable portfolio for the previous quarter (no filing, or a filing with its holdings under confidential treatment). “% of the company” only where shares outstanding are up to date. Entities of the same group file separately and some 13F filings include other managers: there may be double counting. With a free account: the top 25, the largest buyers and the largest sellers.
Fundamentals
12-month figures to Jun 30, 2026 · balance sheet as of Jun 30, 2026.
- Operating margin
- —
- Net margin
- —
- ROE
- —
- Revenue (TTM)
- —
- Revenue growth
- —
- Net income (TTM)
- $8.9M
- Net debt / EBITDA
- —
- Free cash flow (TTM)
- —
- Quality vs sector
- —
This company's sector comes from its SIC code, unreviewed, or has too few comparable companies: we do not compare it with its sector.
Figures from the statements the company filed with the SEC (10-K, 10-Q). Free cash flow = operating cash flow − capital expenditures; empty if the company does not report capex. “Quality vs sector”: 0 to 100, the average of its percentiles in ROE, operating margin, free-cash-flow margin, revenue and earnings growth and net debt / EBITDA (at least 3 needed) against companies in its sector above $300M. How each figure is calculated
Earnings quality and debt
110.0% of net income does not come from operations.
- Operating cash flow ÷ net income (12 months)
- -0.05
- Interest coverage (operating income ÷ interest)
- no data
- Debt due within 12 months
- no data
From the figures the company filed with the SEC. Cash flow over net income near or above 1 means earnings are collected in cash; far below, that part is accounting. Coverage says how many times operating income pays the latest fiscal year's interest. Maturities come from the debt note of the latest annual report, counted from its closing date. “No data” never means zero.
Insiders (Form 4)
Open-market purchases, excluding 10b5-1 plans. Officers and directors only; joint filers of the same purchase count as one. 10% owners with no role are shown separately. 0 = nobody bought; “no data” = we do not have its Form 4 filings.
Each of the company's Form 4 filings, on EDGAR ↗Latest trades, with date and filing →
Above 5% (13D/13G)
Disclosed stakes, with their amendments. A filing is not always a purchase: there are also reductions and changes of filing entity.
This list may be incomplete: we hold 13D and 13G filings made since Dec 23, 2024. A holder above 5% that has not filed anything since then is not shown here.
- Westchester Capital Management5.65%13Gfiling ↗Event: Mar 31, 2026 · filed: May 15, 2026
- D. E. Shaw5.7%13Gfiling ↗Event: Mar 31, 2026 · filed: May 15, 2026
- Glazer Capital5.47%13Gfiling ↗Event: Mar 31, 2026 · filed: May 14, 2026
Above 5% over time (13D/13G)
Each holder with its filings in order. History since December 2024.
Flagged material events (8-K)
Change in directors or officers (Item 5.02)
Alert items the company itself flagged in its 8-K filings with the SEC, most serious first. It is the form's label, with no interpretation from us: Item 5.02 covers routine appointments as well as a chief executive's departure; open the filing. The quoted headline is the original press release's.
All material events (8-K)
Earnings, agreements, financing, management changes and announcements from the last year, with a filter by type and a link to each filing.