Comparable stake leader
OneIM Sponsor LLC
SEC ownership of OneIM Acquisition Corp.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002088325.
Disclosed value leader
OneIM Sponsor LLC
Comparable rows
29/50
Latest evidence
11 Jun 2026
- Public ticker
- OIM, OIMAU, OIMAW on Nasdaq
- Parsed ownership sources
-
13D/G and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
OneIM Sponsor LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
29 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
OneIM Sponsor LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
11 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002088325
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of OneIM Acquisition Corp. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
OneIM Sponsor LLC
Disclosed value leader
OneIM Sponsor LLC
Comparable rows
29/50
Latest evidence
11 Jun 2026
13D/G
13F
Lead comparable stake: 20%
21 rows are not safely comparable across share classes.
13D/G row: OneIM Sponsor LLC
Showing 1-8 of 50 holder rows.
Quick read
OneIM Sponsor LLC leads the comparable SEC ownership view at 20%.
29 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens OneIM Sponsor LLC's linked filing trail.
Comparable ownership
Top 5
OneIM Sponsor LLC
20%
Adage Capital Management, L.P.
7.8%
Saba Capital Management, L.P.
6.4%
RP Investment Advisors LP
6.3%
Sculptor Capital LP
5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| OneIM Sponsor LLC |
13D/G
|
20%
|
$74,182,125
7,337,500 shares
|
$0 | 13 Jan 2026 |
| Adage Capital Management, L.P. |
13D/G
|
7.8%
|
$22,770,000
2,250,000 shares
|
$0 | 31 Mar 2026 |
| Saba Capital Management, L.P. |
13F
13D/G
Company
|
6.4%
from 13D/G
|
$15,317,198
1,871,928 shares
mixed-class rows
|
— | 31 Mar 2026 |
| RP Investment Advisors LP |
13D/G
|
6.3%
|
$18,184,330
1,812,994 shares
|
$0 | 11 Jun 2026 |
| Sculptor Capital LP |
13D/G
13F
Company
|
5%
|
$14,783,378
1,462,253 shares
|
$0 | 03 Mar 2026 |
| Empyrean Capital Partners, LP |
13F
Company
|
4.7%
|
$13,730,795
1,358,140 shares
|
— | 31 Mar 2026 |
| BlueCrest Capital Management Ltd |
13F
Company
|
2.8%
|
$8,088,000
800,000 shares
|
— | 31 Mar 2026 |
| Polar Asset Management Partners Inc. |
13F
Company
|
2.8%
|
$8,088,000
800,000 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 08 Jul 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-5 of 5 reporting-owner rows connected to OneIM Acquisition Corp.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
5
Largest Forms 3/4/5 holder
OneIM Sponsor LLC
Net 12M change
$0
Latest report
13 Jan 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| OneIM Sponsor LLC | 10%+ Owner | Mixed | 13 Jan 2026 | |||
| Grigorios Kapenis | CFO and Secretary, Director | Mixed | 13 Jan 2026 | |||
| Mark DiPaolo | Director | Mixed | 13 Jan 2026 | |||
| Antony Sheriff | Director | Mixed | 13 Jan 2026 | |||
| Ioannis Pipilis | Chief Executive Officer, Director, 10%+ Owner | Mixed | 13 Jan 2026 |
Recent insider transactions for OneIM Acquisition Corp.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.