OACCW · Oaktree Acquisition Corp. III Life Sciences · Holdings

$0.91 At close · Oct 20

Market Cap

$262.05M

24.58M

Volume · Oct 20 570 Avg daily vol (3M) 9097

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of OACCW: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

Quarter:

Holders: 31

Total Value: $129,050

Total Shares: 2,872,891

Institutional Ownership Trend

7 quarters

Holder Concentration

Across 31 13F filers · Δ vs Mar 31, 2026

Top Holder

100.0%

0.0 pts

Top 5

100.0%

0.0 pts

Top 10

100.0%

0.0 pts

HHI

10,000

Highly concentrated0

Who Holds OACCW

Last 7 quarters through Jun 30, 2026

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026: 28 filers, like-for-like change +1.4%; actively managed books +1.4%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	48.6%	14	-4.7%	1	1
Exempt adviser	6.9%	2	0.0%	0	0
Bank	7.1%	2	+9.8%	0	0
Non-US	20.9%	4	0.0%	0	0
Broker-dealer	0.0%	0	—	0	0
Unknown	16.5%	6	+39.0%	2	0

Style	Share	Filers	Change	New	Exited
Systematic-like	15.3%	5	-18.9%	0	1
Concentrated	12.0%	3	+0.2%	0	0
Diversified active	72.7%	20	+7.2%	3	0
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Medium turnover	52.3%	13	+1.3%	1	0
High turnover	38.8%	12	-5.7%	1	1
Low turnover	0.0%	0	—	0	0
Unknown	8.9%	3	+893.7%	1	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	53.0%	14	+4.3%	2	1
Medium horizon	3.6%	2	+1.6%	1	0
Long horizon	24.6%	5	+2.5%	0	0
Unknown	18.8%	7	-6.5%	0	0
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	27.8%	9	+23.5%	3	0
$1B to $10B	33.8%	8	-6.2%	0	1
$10B to $100B	34.4%	9	-2.0%	0	0
$100B or more	4.0%	2	+0.3%	0	0
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Pooled investment vehicles	45.7%	13	-4.9%	1	1
Charitable organizations	2.9%	1	0.0%	0	0
Registered funds and BDCs	0.0%	0	—	0	0
Diversified	0.0%	0	—	0	0
Unknown	51.4%	14	+8.8%	2	0

Private funds	Share	Filers	Change	New	Exited
Hedge funds	52.0%	15	-4.4%	1	1
Private funds, type not stated	3.5%	1	0.0%	0	0
Private equity funds	0.0%	0	—	0	0
Unknown	44.5%	12	+10.5%	2	0

Location	Share	Filers	Change	New	Exited
United States	55.9%	18	+1.2%	3	1
Outside the US	44.1%	10	+1.8%	0	0

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

28 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

7.14% of filers hold it in their top 10

Mar 31, 2026: 3

Holders above 5%

median weight —

Mar 31, 2026: 0

Crowding

—

shares outstanding is an issuer-wide count, not one listing's

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

shares outstanding is an issuer-wide count, not one listing's

Top 10 holders

65.9%

of 13F shares, Herfindahl 0.060

Active holders

+1.4%

like-for-like share change of active filers

5% stakes on record

0 13D, 0 13G

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Shared Holders

Companies OACCW's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	GTEN Gores Holdings X, Inc.	5	0.505
2	NHIC NewHold Investment Corp. III	5	0.423
3	BEAG Bold Eagle Acquisition Corp.	5	0.423
4	ALDF Aldel Financial II Inc.	5	0.423
5	CCII Cohen Circle Acquisition Corp. II	9	0.401
6	OTGA OTG Acquisition Corp. I	9	0.401
7	SAC Safeguard Acquisition Corp.	7	0.367
8	SVCC Stellar V Capital Corp. (Cayman Islands)	4	0.356
9	NSTR NorthStar Earth & Space Enterprises, Inc.	7	0.354
10	FACT FACT II Acquisition Corp.	5	0.345

Shareholder Targets

13F filers that own its peers but not OACCW, quarter ended Jun 30, 2026

Found through its holder-overlap peers: GTEN, NHIC, BEAG, ALDF, CCII, OTGA, SAC, SVCC, NSTR, FACT, FCRS, BCSS, JENA, GSHR, BIXI, FVAV, ETSS, SVAQ, PLMK, DNMX. 97 filers in all.

#	Filer	In peers	Of book	Largest peers
1	Magnetar Financial LLC Registered adviser, Concentrated	$164,517,444 18 held	1.70%	ALDF, NHIC, SVCC
2	ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active	$134,120,671 7 held	0.190%	BCSS, FVAV, OTGA
3	Harraden Circle Investments, LLC Registered adviser, Diversified active	$113,060,621 7 held	19.3%	BEAG, ALDF, CCII
4	ARISTEIA CAPITAL, L.L.C. Registered adviser, Diversified active	$79,055,238 14 held	3.02%	BIXI, OTGA, BCSS
5	Polar Asset Management Partners Inc. Registered adviser, Systematic-like	$74,190,444 13 held	1.96%	GTEN, BCSS, JENA
6	SONA ASSET MANAGEMENT (US) LLC Registered adviser, Diversified active	$60,814,849 19 held	2.95%	FVAV, ETSS, SVAQ
7	Centiva Capital, LP Registered adviser, Diversified active	$58,793,641 17 held	2.39%	JENA, CCII, GTEN
8	Westchester Capital Management, LLC Registered adviser, Diversified active	$53,839,234 11 held	3.02%	ALDF, JENA, FACT
9	HIGHBRIDGE CAPITAL MANAGEMENT LLC Registered adviser, Diversified active	$50,121,369 7 held	3.01%	FACT, NSTR, BEAG
10	RIVERNORTH CAPITAL MANAGEMENT, LLC Registered adviser, Diversified active	$41,913,973 11 held	2.11%	ALDF, NHIC, SVCC

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: +2

Institutional value: +18.7%

Shares held: +1.2%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large TORONTO DOMINION BANK	+16,616	189,816
Small K2 PRINCIPAL FUND, L.P.	+1,311	40,369
Large Clear Street Group Inc.	+398	9,274
Mega UBS Group AG	+299	561

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large Schonfeld Strategic Advisors LLC	−35,130	16,500
Small Shaolin Capital Management LLC	−12,575	100,625
Mega CITIGROUP INC	−2,180	8,000
Large Verition Fund Management LLC	−562	23,790

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small Lineage Point Capital LP	78,928	$0
Small SkyView Investment Advisors, LLC	1,530	$0
Small DLD Asset Management, LP	44,519	$0

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Mid Lighthouse Investment Partners, LLC	60,000	$0

Filter: New 3 Increased 4 Reduced 4 Sold out 1 Unchanged 19

Holder type: Registered adviser 15 Exempt adviser 2 Bank 4 Non-US 4 Unknown 6

Showing 31 of 31

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

JPMORGAN CHASE & CO OACCW

$129,050

100.00%

145,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	145,000	$129,050	100.0%	Defined

Weiss Asset Management LP OACCW

—

144,767

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WEISS ANDREW M joint	144,767	$0	—	Defined

TENOR CAPITAL MANAGEMENT Co., L.P. OACCW

—

60,000

SkyView Investment Advisors, LLC OACCW

—

1,530

Schonfeld Strategic Advisors LLC OACCW

—

16,500

ExodusPoint Capital Management, LP OACCW

—

60,000

Periscope Capital Inc. OACCW

—

90,000

MILLENNIUM MANAGEMENT LLC OACCW

—

35,000

Alberta Investment Management Corp OACCW

—

100,000

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND OACCW

—

340,000

Walleye Capital LLC OACCW

—

169,502

CITIGROUP INC OACCW

—

8,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	8,000	$0	—	Defined

AQR Arbitrage LLC OACCW

—

282,120

MOORE CAPITAL MANAGEMENT, LP OACCW

—

105,000

Clear Street Group Inc. OACCW

—

9,274

Sculptor Capital LP OACCW

—

50,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Sculptor Capital II LP joint	50,000	$0	—	Sole

PICTON MAHONEY ASSET MANAGEMENT OACCW

—

15,000

BNP PARIBAS ARBITRAGE, SA OACCW

—

105,907

GRITSTONE ASSET MANAGEMENT LLC OACCW

—

78,981

WHITEBOX ADVISORS LLC OACCW

—

50,000

LMR Partners LLP OACCW

—

95,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	95,000	$0	—	Sole

Verition Fund Management LLC OACCW

—

23,790

K2 PRINCIPAL FUND, L.P. OACCW

—

40,369

Shaolin Capital Management LLC OACCW

—

100,625

UBS Group AG OACCW

—

561

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	561	$0	—	Defined

DLD Asset Management, LP OACCW

—

44,519

Lineage Point Capital LP OACCW

—

78,928

Linden Advisors LP OACCW

—

120,000

BOUSSARD & GAVAUDAN GESTION SAS OACCW

—

150,000

TORONTO DOMINION BANK OACCW

—

189,816

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	189,816	$0	—	Defined

Decagon Asset Management LLP OACCW

—

162,702

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
North Rock Capital Management, LLC	60,000	$0	—	Defined

Key facts CIK 2029769 CUSIP G6717R104 Visit website Investor relations