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Oneim Acquisition (OIM): which funds own it

SPAC / vehículos(by SIC code, unreviewed)Data as of Jun 30, 2026 (Q2 2026) · updated on Nov 5, 2026

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.

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2 concentrated managers hold it with a median weight of 0.4%.

Who owns Oneim Acquisition?

Holders that filed a Schedule 13D or 13G with the SEC for owning more than 5% of the shares: OneIM Sponsor (13G filed Apr 15, 2026), Adage Capital Management (13G filed May 13, 2026) and RP Investment Advisors (13G filed Jun 18, 2026). As of Jun 30, 2026, the largest holders reported on Form 13F were Adage Capital Partners Gp, L.l.c (2.3 million shares), Sculptor Capital (1.5 million shares) and Empyrean Capital Partners (1.4 million shares).

Which institutions hold the most Oneim Acquisition shares?

Per Form 13F filings as of Jun 30, 2026:

  1. 1. Adage Capital Partners Gp, L.l.c: 2.3 million shares
  2. 2. Sculptor Capital: 1.5 million shares
  3. 3. Empyrean Capital Partners: 1.4 million shares
  4. 4. Moore Capital Management: 1.1 million shares
  5. 5. Saba Capital Management: 1.0 million shares
  6. 6. Linden Advisors: 1.0 million shares
  7. 7. Alberta Investment Management: 1.0 million shares
  8. 8. Millennium Management: 952,000 shares
  9. 9. Verition Fund Management: 773,887 shares
  10. 10. D. E. Shaw: 750,000 shares

Sources:13G by OneIM Sponsor (Apr 15, 2026) ↗13G by Adage Capital Management (May 13, 2026) ↗13G by RP Investment Advisors (Jun 18, 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.

Concentrated managers
2
All 13F: 48
Consensus
—
No score: it needs 5 or more concentrated managers
Price at Jun 30, 2026 (per 13F)
$10.07
+1.1% in the quarter · reported value ÷ shares, not the quote · See current quote ↗

Quarter flow (concentrated managers)

Change in managers (2 → 2): 0 opened · 0 exited = 0

Net flow in the quarter: $0K (0 shares) · bought $0 and sold $0Shares concentrated managers added minus those they cut, valued at the 13F quarter-end implied price, not each trade's price. It is a different measure from the change in managers: the two can have opposite signs.

The set of concentrated managers changed between quarters: with the set as it was then, 1 held it last quarter (the chart point); with today's set, 2 (the base for the change).

Concentrated managers holding it

Up to 15, sorted by position value. The percentage is the weight in each manager's portfolio.

Largest holders of OIM (all 13F filers)

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

Balance sheet only, for now. OIM has not yet filed its first annual report (10-K) with the SEC, so there are no 12-month figures (revenue, margins, earnings and cash flow). We show the balance sheet from its latest filing; once the 12-month figures are available, this section fills in automatically.

Balance sheet as of Jun 30, 2026
Cash and equivalents
$699K
Investments
$292M
Shareholders' equity
$-15.1M

Balance sheet figures the company filed with the SEC (10-Q or 10-K), in dollars. Net debt = total debt − cash − investments; when negative, the company has more cash than debt (net cash). How each figure is calculated

Insiders (Form 4)

Officers and directors who bought (6 m)
no data
Amount (6 m)
no data
CEO/CFO bought (12 m)
No

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.

  • RP Investment Advisors6.3%13Gfiling ↗Event: Jun 11, 2026 · filed: Jun 18, 2026
  • Adage Capital Management7.83%13Gfiling ↗Event: Mar 31, 2026 · filed: May 13, 2026
  • OneIM Sponsor20.3%13Gfiling ↗Event: Jan 13, 2026 · filed: Apr 15, 2026

Above 5% over time (13D/13G)

Each holder with its filings in order. History since December 2024.

Flagged material events (8-K)

  • Jan 16, 2026Routinefiling ↗

    Unregistered sale of equity securities (Item 3.02)

    «OneIM Acquisition Corp. Successfully Prices $250 Million Initial Public Offering»

  • Jan 16, 2026Routinefiling ↗

    Change in directors or officers (Item 5.02)

    «OneIM Acquisition Corp. Successfully Prices $250 Million Initial Public Offering»

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.

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