Comparable stake leader
Oaktree Acquisition Holdings III LS, LLC
SEC ownership of Oaktree Acquisition Corp. III Life Sciences
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002029769.
Disclosed value leader
Oaktree Acquisition Holdings III LS, LLC
Comparable rows
8/50
Latest evidence
23 Oct 2026
- Public ticker
- OACC, OACCU, OACCW on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Oaktree Acquisition Holdings III LS, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
8 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Oaktree Acquisition Holdings III LS, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
23 Oct 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002029769
- Issuer location
- Los Angeles, CA
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 Oaktree Acquisition Corp. III Life Sciences (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
Oaktree Acquisition Holdi...
Disclosed value leader
Oaktree Acquisition Holdi...
Comparable rows
8/50
Latest evidence
23 Oct 2026
3/4/5
13D/G
13F
Lead comparable stake: 22%
42 rows are not safely comparable across share classes.
13D/G row: Oaktree Acquisition Holdings III LS, LLC
Showing 1-8 of 50 holder rows.
Quick read
Oaktree Acquisition Holdings III LS, LLC leads the comparable SEC ownership view at 22%.
8 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 Oaktree Acquisition Holdings III LS, LLC's linked filing trail.
Comparable ownership
Top 5
Oaktree Acquisition Holdings III ...
22%
AQR CAPITAL MANAGEMENT LLC
7.3%
BARCLAYS PLC
7%
GOLDMAN SACHS GROUP INC
6.2%
Decagon Asset Management LLP
5.5%
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 |
|---|---|---|---|---|---|
| Oaktree Acquisition Holdings III LS, LLC |
3/4/5
13D/G
10%+ Owner
|
22%
Reported 13D/G
· 31 Dec 2024
|
$57,595,307
5,500,535 shares
mixed-class rows
|
— | 23 Oct 2026 |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
|
7.3%
Reported 13D/G
· 31 Mar 2025
|
$14,812,158
1,450,750 shares
|
$0 | 31 Mar 2025 |
| BARCLAYS PLC |
13D/G
|
7%
Reported 13D/G
· 30 Jun 2026
|
$14,817,467
1,384,810 shares
|
+$5,598,080 | 30 Jun 2026 |
| GOLDMAN SACHS GROUP INC |
13F
13D/G
Company · THE GOLDMAN SACHS GROUP, INC.
|
6.2%
Reported 13D/G
· 31 Mar 2026
|
$5,666,025
529,535 shares
|
— | 30 Jun 2026 |
| Decagon Asset Management LLP |
13F
13D/G
Company
|
5.5%
Reported 13D/G
· 30 Jun 2026
|
$11,830,367
1,254,029 shares
mixed-class rows
|
— | 30 Jun 2026 |
| Fort Baker Capital Management LP |
13F
13D/G
Company
|
5.1%
Reported 13D/G
· 31 Mar 2026
|
$11,827,716
1,105,394 shares
|
— | 30 Jun 2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND |
13D/G
13F
Company
|
3.5%
Reported 13D/G
· 31 Mar 2025
|
$7,147,000
700,000 shares
|
-$10,210,000 | 31 Mar 2025 |
| MILLENNIUM MANAGEMENT LLC |
13D/G
13F
Company
|
1.4%
Reported 13D/G
· 30 Jun 2025
|
$2,915,734
277,689 shares
|
$0 | 30 Jun 2025 |
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
No eligible buy or sell activity is available for this window. No eligible Buy or Sell transactions are available in this dataset since 10 Nov 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 1-15 of 15 reporting-owner rows connected to Oaktree Acquisition Corp. III Life Sciences. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
Oaktree Acquisition Holdings III LS, LLC
Net 12M change
$0
Latest report
23 Oct 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Oaktree Acquisition Holdings III LS, LLC | 10%+ Owner | $57,595,307 | Mixed | 23 Oct 2026 | ||
| Oaktree Acquisition Holdings III LS GP, Ltd. | 10%+ Owner | $57,595,307 | Mixed | 23 Oct 2026 | ||
| OAKTREE CAPITAL MANAGEMENT LP | 10%+ Owner | $57,595,307 | Mixed | 23 Oct 2026 | ||
| Oaktree Capital Management GP, LLC | 10%+ Owner | $57,595,307 | Mixed | 23 Oct 2026 | ||
| Oaktree Capital Holdings, LLC | 10%+ Owner | $57,595,307 | Mixed | 23 Oct 2026 | ||
| Mathew Pendo | Chief Operating Officer | Mixed | 23 Oct 2024 | |||
| Aman Kumar | Director | Mixed | 23 Oct 2024 | |||
| Alvin Shih | Director | Mixed | 23 Oct 2024 | |||
| John Frank | Director | Mixed | 23 Oct 2024 | |||
| David A. Berry | Director | Mixed | 17 Oct 2025 | |||
| George Arthur Martinez | Chief Financial Officer | Mixed | 29 Oct 2025 | |||
| Thomas Sweeney | Chief Financial Officer | Mixed | 03 Jun 2025 | |||
| Paul M. Meister | Director | Mixed | 23 Oct 2024 | |||
| Zaid Pardesi | Chief Executive Officer | Mixed | 23 Oct 2024 | |||
| Courtney Conigliaro | Chief Financial Officer | Mixed | 23 Oct 2024 |
Recent insider transactions for Oaktree Acquisition Corp. III Life Sciences
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class A Ordinary Shares | Conversion of derivative security | 821.7% | 4,798,758 | 5,382,739 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class A Ordinary Shares | Conversion of derivative security | 821.7% | 4,798,758 | 5,382,739 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class A Ordinary Shares | Conversion of derivative security | 821.7% | 4,798,758 | 5,382,739 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class A Ordinary Shares | Conversion of derivative security | 821.7% | 4,798,758 | 5,382,739 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class A Ordinary Shares | Conversion of derivative security | 821.7% | 4,798,758 | 5,382,739 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class B Ordinary Shares | Conversion of derivative security | -100% | -4,798,758 | 1,000 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class B Ordinary Shares | Conversion of derivative security | -100% | -4,798,758 | 1,000 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class B Ordinary Shares | Conversion of derivative security | -100% | -4,798,758 | 1,000 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class B Ordinary Shares | Conversion of derivative security | -100% | -4,798,758 | 1,000 | 23 Oct 2026 | Direct | ||
| Oaktree Acquisition Holdings III LS, LLC | OACC | Class B Ordinary Shares | Conversion of derivative security | -100% | -4,798,758 | 1,000 | 23 Oct 2026 | Direct |
* marks a reported price that did not pass the local price check.