Oaktree Acquisition Corp. III Life Sciences (OACC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

24,584,275Shares Outstanding

9,269,020Shares held by institutions

$98,993,134Value of institutional holdings

67.76%Institutional ownership %

0.79%Shares Changed QoQ

48No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

A total of 48 institutions have reported a stake in Oaktree Acquisition Corp. III Life Sciences (NASDAQ:OACC) as of December 2025, according to recent 13F filings with the SEC.

The percentage of Oaktree Acquisition Corp. III Life Sciences owned by institutions changed from 68.0% in September 2025 to 67.8% in December 2025, marking a slight down trend.
On a quarter-over-quarter basis, institutional holdings shifted by 0.79%, with a year-over-year an increase of 128.57% in the count of filers.
Of these 48 institutional investors, 10 increased their holdings in Oaktree Acquisition Corp. III Life Sciences, while 13 of them reduced positions, and 25 investors maintained their exposure.
The total number of shares held by institutions in Oaktree Acquisition Corp. III Life Sciences increased to 16.66Mn as of December 2025, a net change of up by 130.32K shares quarter on quarter, and down N/A shares year over year.
With 1.41Mn shares, AQR Arbitrage LLC commands the largest institutional position in Oaktree Acquisition Corp. III Life Sciences as of December 31, 2025, equating to 5.75% of the company.
Among the most significant buyers of Oaktree Acquisition Corp. III Life Sciences during December 2025 were Lineage Point Capital LP (232.93K), Radcliffe Capital Management, L.P. (151.40K), Empyrean Capital Partners, LP (150.00K), Verition Fund Management LLC (148.00K), Decagon Asset Management LLP (31.32K).
Leading sellers of Oaktree Acquisition Corp. III Life Sciences stock in December 2025 included TORONTO DOMINION BANK (258.80K), PERISCOPE CAPITAL INC. (76.60K), METEORA CAPITAL, LLC (57.52K), MIZUHO SECURITIES USA LLC (45.00K), DRIEHAUS CAPITAL MANAGEMENT LLC (42.85K).
The top 10 institutional holders of Oaktree Acquisition Corp. III Life Sciences for the quarter ending December 2025 included AQR Arbitrage LLC (1.41Mn), Empyrean Capital Partners, LP (900.00K), D. E. Shaw & Co., Inc. (861.62K), Boussard & Gavaudan Investment Management LLP (720.00K), Decagon Asset Management LLP (675.64K), TORONTO DOMINION BANK (675.20K), DRIEHAUS CAPITAL MANAGEMENT LLC (670.07K), HighTower Advisors, LLC (627.03K), LINDEN ADVISORS LP (600.00K), Sculptor Capital LP (530.54K).

48 Institutional Holders

9,269,020 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
AQR Arbitrage LLC	31 Dec, 2025	1,412,750	0	0.00%	$15,017,533.00
Empyrean Capital Partners, LP	31 Dec, 2025	900,000	150,000	20.00%	$9,522,000.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	861,625	0	0.00%	$9,159,074.00
Boussard & Gavaudan Investment Management LLP	31 Dec, 2025	720,000	-30,000	-4.00%	$7,653,528.00
Decagon Asset Management LLP	31 Dec, 2025	675,637	31,316	4.86%	$7,148,240.00
TORONTO DOMINION BANK	31 Dec, 2025	675,197	-258,803	-27.71%	$7,143,584.00
DRIEHAUS CAPITAL MANAGEMENT LLC	31 Dec, 2025	670,072	-42,852	-6.01%	$7,122,865.00
HighTower Advisors, LLC	31 Dec, 2025	627,029	-30,599	-4.65%	$6,633,967.00
LINDEN ADVISORS LP	31 Dec, 2025	600,000	0	0.00%	$6,378,000.00
Sculptor Capital LP	31 Dec, 2025	530,537	30,537	6.11%	$5,613,081.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	529,535	0	0.00%	$5,602,480.00
MOORE CAPITAL MANAGEMENT, LP	31 Dec, 2025	525,000	0	0.00%	$5,554,500.00
LMR Partners LLP	31 Dec, 2025	510,900	0	0.00%	$5,405,322.00
Alberta Investment Management Corp	31 Dec, 2025	500,000	0	0.00%	$5,315,000.00
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	31 Dec, 2025	450,000	0	0.00%	$4,783,500.00
Ghisallo Capital Management LLC	31 Dec, 2025	450,000	0	0.00%	$4,783,500.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	437,500	0	0.00%	$4,628,750.00
Hudson Bay Capital Management LP	31 Dec, 2025	400,000	0	0.00%	$4,252,000.00
GRITSTONE ASSET MANAGEMENT LLC	31 Dec, 2025	394,908	0	0.00%	$4,178,127.00
Radcliffe Capital Management, L.P.	31 Dec, 2025	377,065	151,403	67.09%	$3,989,348.00

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