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

Institutions by Trading Activity

Ownership Statistics

24,582,768Shares Outstanding

17,920,955Shares held by institutions

$189,245,285Value of institutional holdings

72.90%Institutional ownership %

1.90%Shares Changed QoQ

48No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Oaktree Acquisition Corp. III Life Sciences (NASDAQ:OACC) appears in 48 institutional 13F filings for the quarter ending December 2025.

They owned 70.7% of outstanding stock in December 2025, up from 64.5% the prior quarter.
They decreased total shares held in Oaktree Acquisition Corp. III Life Sciences by -1.11% from the prior quarter, while the number of investors in OACC stayed flat year over year.
Of these 48 funds, 10 grew their exposure to Oaktree Acquisition Corp. III Life Sciences, 14 cut back, and 24 maintained positions.
In total, institutional investors held 17.39Mn shares in Oaktree Acquisition Corp. III Life Sciences as of December 2025, down by 194.87K shares quarter on quarter, and with no net change year over year.
AQR Arbitrage LLC leads ownership in OACC with 1.41Mn shares as of December 31, 2025, equal to 5.75% of outstanding shares.
Top purchasers of OACC stock for the quarter ending December 2025 included Goldman Sachs Group Inc (529.54K), Lineage Point Capital LP (465.58K), Radcliffe Capital Management, L.P. (151.4K), Empyrean Capital Partners, LP (150.0K), Verition Fund Management LLC (148.0K).
The largest sellers of Oaktree Acquisition Corp. III Life Sciences for the quarter ending December 2025 were Hudson Bay Capital Management LP (400.0K), Toronto Dominion Bank (258.8K), DLD Asset Management, LP (116.84K), Jpmorgan Chase & Co (99.74K), PERISCOPE CAPITAL INC. (76.6K).
According to Business Quant data, leading holders of OACC for December 2025 are AQR Arbitrage LLC (1.41Mn), Goldman Sachs Group Inc (1.06Mn), Alberta Investment Management Corp (1.0Mn), Empyrean Capital Partners, LP (900.0K), D. E. Shaw & Co., Inc. (861.62K), Boussard & Gavaudan Investment Management LLP (720.0K), Decagon Asset Management LLP (675.64K), Toronto Dominion Bank (675.2K), DRIEHAUS CAPITAL MANAGEMENT LLC (670.07K), HighTower Advisors, LLC (627.03K).

48 Institutional Holders

17,920,955 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
Goldman Sachs Group Inc	31 Dec, 2025	1,059,070	529,535	100.00%	$11,204,960.00
Alberta Investment Management Corp	31 Dec, 2025	1,000,000	0	0.00%	$10,630,000.00
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
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
Lineage Point Capital LP	31 Dec, 2025	465,575	465,575	0.00%	$4,925,783.00
Ghisallo Capital Management LLC	31 Dec, 2025	450,000	0	0.00%	$4,783,500.00
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	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	-400,000	-50.00%	$4,252,000.00
GRITSTONE ASSET MANAGEMENT LLC	31 Dec, 2025	394,908	0	0.00%	$4,178,127.00

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