Conversion4

Oaktree Acquisition Corp. III Life Sciences

Total Value

Filing Date

Oct 23, 2026

1 transactions

Trade Summary

On Oct 23, 2026, Oaktree Acquisition Holdings III LS, LLC, Insider, reported $0 of Oaktree Acquisition Corp. III Life Sciences (OACC) across 1 transactions. The filing covers Class A Ordinary Shares and reflects balanced net activity of $0. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Oaktree Acquisition Holdings III LS, LLC
Role: Insider
Location: LOS ANGELES, CA

Filing Details

Filing Date: Oct 23, 2026
Transaction Date: Oct 23, 2026
Accession Number: 0001193125-26-430503
Form Type: 4

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Oct 23, 2026	Class A Ordinary Shares	4,798,758	—	C	—

Derivative Transactions

Date	Security	Shares	Exercise Price	Type	Value
Oct 23, 2026	OACC derivative	4,798,758	—	C	—

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Footnotes

(F1)Class B ordinary shares are automatically convertible into Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis or earlier at the option of the holder.
(F2)The reported securities are directly held by Oaktree Acquisition Holdings III LS, LLC ("Holdings"). The managing member of Holdings is Oaktree Acquisition Holdings III LS GP, Ltd. ("Holdings GP"). The director of Holdings GP is Oaktree Capital Management, L.P. ("OCM"). The general partner of OCM is Oaktree Capital Management GP, LLC ("OCM GP"). The sole managing member of OCM GP is Oaktree Capital Holdings, LLC. Each of the Reporting Persons disclaims beneficial ownership of the reported securities except to the extent of their respective pecuniary interest therein and the filing of this Statement shall not be construed as an admission that any such Reporting Person is the beneficial owner of the reported securities covered by this Statement.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Oaktree Acquisition Holdings III LS, LLC

(Last)

(First)

(Middle)

333 SOUTH GRAND AVENUE, 28TH FLOOR

(Street)

LOS ANGELES

90071

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Oaktree Acquisition Corp. III Life Sciences [ OACC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

Director	X	10% Owner
Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/23/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Ordinary Shares	10/23/2026		C		4,798,758	A	⁽¹⁾	5,382,739	D⁽²⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Class B Ordinary Shares	⁽¹⁾	10/23/2026		C			4,798,758	⁽¹⁾	⁽¹⁾	Class A Ordinary Shares	4,798,758	$0	1,000	D⁽²⁾

1. Name and Address of Reporting Person^*

Oaktree Acquisition Holdings III LS, LLC

(Last)

(First)

(Middle)

333 SOUTH GRAND AVENUE, 28TH FLOOR

(Street)

LOS ANGELES

90071

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Oaktree Acquisition Holdings III LS GP, Ltd.

(Last)

(First)

(Middle)

333 SOUTH GRAND AVENUE, 28TH FLOOR

(Street)

LOS ANGELES

90071

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

OAKTREE CAPITAL MANAGEMENT LP

(Last)

(First)

(Middle)

C/O OAKTREE CAPITAL MANAGEMENT, L.P.

333 SOUTH GRAND AVENUE, 28TH FLOOR

(Street)

LOS ANGELES

90071

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Oaktree Capital Management GP, LLC

(Last)

(First)

(Middle)

C/O OAKTREE CAPITAL MANAGEMENT, L.P.

333 SOUTH GRAND AVENUE, 28TH FLOOR

(Street)

LOS ANGELES

90071

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Oaktree Capital Holdings, LLC

(Last)

(First)

(Middle)

C/O OAKTREE CAPITAL MANAGEMENT, L.P.

333 SOUTH GRAND AVENUE, 28TH FLOOR

(Street)

LOS ANGELES

90071

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

Explanation of Responses:

1. Class B ordinary shares are automatically convertible into Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis or earlier at the option of the holder.

2. The reported securities are directly held by Oaktree Acquisition Holdings III LS, LLC ("Holdings"). The managing member of Holdings is Oaktree Acquisition Holdings III LS GP, Ltd. ("Holdings GP"). The director of Holdings GP is Oaktree Capital Management, L.P. ("OCM"). The general partner of OCM is Oaktree Capital Management GP, LLC ("OCM GP"). The sole managing member of OCM GP is Oaktree Capital Holdings, LLC. Each of the Reporting Persons disclaims beneficial ownership of the reported securities except to the extent of their respective pecuniary interest therein and the filing of this Statement shall not be construed as an admission that any such Reporting Person is the beneficial owner of the reported securities covered by this Statement.

	Oaktree Acquisition Holdings III LS, LLC, By: Oaktree Acquisition Holdings III LS GP, Ltd., its Managing Member, By: Oaktree Capital Management, L.P., its Director, By: /s/ Henry Orren, Managing Director	10/23/2026
	Oaktree Acquisition Holdings III LS GP, Ltd., By: Oaktree Capital Management, L.P., its Director, By: /s/ Henry Orren, Managing Director	10/23/2026
	Oaktree Capital Management, L.P., By: /s/ Henry Orren, Managing Director	10/23/2026
	Oaktree Capital Management GP, LLC, By: /s/ Henry Orren, Managing Director	10/23/2026
	Oaktree Capital Holdings, LLC, By: /s/ Henry Orren, Managing Director	10/23/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 4 as rendered by the SEC from accession 0001193125-26-430503.

Oaktree Acquisition Corp. III Life Sciences

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4