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OACC

Oaktree Acquisition Corp III Life Sciences

48 hedge funds and large institutions have $175M invested in Oaktree Acquisition Corp III Life Sciences in 2025 Q3 according to their latest regulatory filings, with 5 funds opening new positions, 10 increasing their positions, 9 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed

25% more first-time investments, than exits

New positions opened: 5 | Existing positions closed: 4

11% more repeat investments, than reductions

Existing positions increased: 10 | Existing positions reduced: 9

2% more funds holding

Funds holding: 4748 (+1)

1.01% more ownership

Funds ownership: 83.31%84.32% (+1%)

2% more capital invested

Capital invested by funds: $172M → $175M (+$2.63M)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
48
Holders Change
+1
Holders Change %
+2.13%
% of All Funds
0.63%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.03%
New
5
Increased
10
Reduced
9
Closed
4
Calls
$32K
Puts
Net Calls
+$32K
Net Calls Change
-$6K
Name Holding Trade Value Shares
Change
Change in
Stake
AA
1
AQR Arbitrage
Connecticut
$14.8M -$397K -38,000 -3%
Toronto Dominion Bank
2
Toronto Dominion Bank
Ontario, Canada
$9.82M +$1.87M +179,022 +24%
D.E. Shaw & Co
3
D.E. Shaw & Co
New York
$9.02M
BGIM
4
Boussard & Gavaudan Investment Management
United Kingdom
$7.89M
ECP
5
Empyrean Capital Partners
California
$7.88M +$7.84M +750,000 New
DCM
6
Driehaus Capital Management
Illinois
$7.46M -$463K -44,284 -6%
HighTower Advisors
7
HighTower Advisors
Illinois
$6.91M -$304K -29,065 -4%
DAM
8
Decagon Asset Management
United Kingdom
$6.77M +$275K +26,305 +4%
LA
9
Linden Advisors
New York
$6.28M
Goldman Sachs
10
Goldman Sachs
New York
$5.57M
MCM
11
Moore Capital Management
New York
$5.52M
LP
12
LMR Partners
United Kingdom
$5.37M
SC
13
Sculptor Capital
New York
$5.25M
AIMCA
14
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$5.24M
GCM
15
Ghisallo Capital Management
Massachusetts
$4.71M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
16
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$4.71M
Two Sigma Investments
17
Two Sigma Investments
New York
$4.6M
PC
18
Periscope Capital
Ontario, Canada
$4.2M
Hudson Bay Capital Management
19
Hudson Bay Capital Management
Connecticut
$4.19M
GAM
20
Gritstone Asset Management
Maryland
$4.15M -$38.9K -3,726 -0.9%
GCL
21
Glazer Capital LLC
New York
$3.84M
SCM
22
Shaolin Capital Management
Florida
$3.69M +$1.63M +156,104 +80%
GL
23
Governors Lane
New York
$3.15M
TCM
24
Tenor Capital Management
New York
$3.15M
UOC
25
UBS O'Connor
Illinois
$3.15M +$1.04M +100,000 +50%

OACC Hedge Fund Activity: Q3 2025 in Review

48 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Oaktree Acquisition Corp III Life Sciences (OACC) for Q3 2025, worth a combined $175M — up 1.5% from $172M a quarter earlier.

Buyers outnumbered sellers: 5 funds opened new OACC positions and 4 closed out — a net gain of 1 holder — while 10 added to existing stakes and 9 trimmed.

The largest buyer was Empyrean Capital Partners, opening a new position worth an estimated $7.84M. The largest seller was Lighthouse Investment Partners, exiting entirely with an estimated $8.88M sold.

  • 48 institutional investors held Oaktree Acquisition Corp III Life Sciences (OACC) as of Q3 2025, up from 47 in Q2 2025.
  • Funds reported $175M of Oaktree Acquisition Corp III Life Sciences stock for Q3 2025, up 1.5% quarter-over-quarter.
  • 5 funds opened new Oaktree Acquisition Corp III Life Sciences positions in Q3 2025 and 4 closed out, a net change of +1 holder.
  • The largest Oaktree Acquisition Corp III Life Sciences buyer in Q3 2025 was Empyrean Capital Partners, an estimated $7.84M added.
  • The largest Oaktree Acquisition Corp III Life Sciences seller in Q3 2025 was Lighthouse Investment Partners, an estimated $8.88M sold.

Based on aggregated 13F filings for Q3 2025.