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OACC

Oaktree Acquisition Corp III Life Sciences
OACC

47 hedge funds and large institutions have $172M invested in Oaktree Acquisition Corp III Life Sciences in 2025 Q2 according to their latest regulatory filings, with 11 funds opening new positions, 8 increasing their positions, 11 reducing their positions, and 3 closing their positions.

New
Increased
Maintained
Reduced
Closed

267% more first-time investments, than exits

New positions opened: 11 | Existing positions closed: 3

21% more funds holding

Funds holding: 39 → 47 (+8)

13% more capital invested

Capital invested by funds: $153M → $172M (+$19.3M)

7.5% more ownership

Funds ownership: 75.81% → 83.31% (+7.5%)

0% more funds holding in top 10

Funds holding in top 10: 3 → 3 (0)

27% less repeat investments, than reductions

Existing positions increased: 8 | Existing positions reduced: 11

Holders
47
Holders Change
+8
Holders Change %
+20.51%
% of All Funds
0.62%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
11
Increased
8
Reduced
11
Closed
3
Calls
$38K
Puts
–
Net Calls
+$38K
Net Calls Change
+$38K

Top Buyers

Rank Fund Capital Flow
1
HighTower Advisors
HighTower Advisors
Illinois
+$5.7M
2
MCM
Moore Capital Management
New York
+$5.45M
3
AIMCA
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
+$5.19M
4
LIP
Lighthouse Investment Partners
Florida
+$4.15M
5
GL
Governors Lane
New York
+$3.11M

Top Sellers

Rank Fund Capital Flow
1
HCI
Harraden Circle Investments
New York
-$5.14M
2
ECM
ExodusPoint Capital Management
New York
-$3M
3
DAM
DLD Asset Management
New York
-$2.59M
4
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
-$2.59M
5
UOC
UBS O'Connor
Illinois
-$2.59M
Name Holding Trade Value Shares
Change 		Change in
Stake
AA
1
AQR Arbitrage
Connecticut
$15.2M – – –
D.E. Shaw & Co
2
D.E. Shaw & Co
New York
$9.03M – – –
LIP
3
Lighthouse Investment Partners
Florida
$8.88M +$4.15M +400,000 +89%
DCM
4
Driehaus Capital Management
Illinois
$7.94M -$1.48M -142,792 -16%
Toronto Dominion Bank
5
Toronto Dominion Bank
Ontario, Canada
$7.89M +$2.79M +268,620 +55%
BGIM
6
Boussard & Gavaudan Investment Management
United Kingdom
$7.87M – – –
HighTower Advisors
7
HighTower Advisors
Illinois
$7.18M +$5.7M +549,704 +401%
DAM
8
Decagon Asset Management
United Kingdom
$6.46M -$1.03M -98,930 -14%
LA
9
Linden Advisors
New York
$6.29M – – –
SSA
10
Schonfeld Strategic Advisors
New York
$5.8M +$2.03M +195,800 +55%
Goldman Sachs
11
Goldman Sachs
New York
$5.53M – – –
MCM
12
Moore Capital Management
New York
$5.5M +$5.45M +525,000 New
LP
13
LMR Partners
United Kingdom
$5.34M – – –
AIMCA
14
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$5.24M +$5.19M +500,000 New
SC
15
Sculptor Capital
New York
$5.22M +$2.59M +250,000 +100%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
16
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$4.72M -$2.59M -250,000 -36%
GCM
17
Ghisallo Capital Management
Massachusetts
$4.72M – – –
Two Sigma Investments
18
Two Sigma Investments
New York
$4.57M – – –
Hudson Bay Capital Management
19
Hudson Bay Capital Management
Connecticut
$4.19M -$519K -50,000 -11%
PC
20
Periscope Capital
Ontario, Canada
$4.18M -$301K -29,000 -7%
GAM
21
Gritstone Asset Management
Maryland
$4.17M – – –
GCL
22
Glazer Capital LLC
New York
$3.81M -$233K -22,497 -6%
TCM
23
Tenor Capital Management
New York
$3.13M – – –
GL
24
Governors Lane
New York
$3.13M +$3.11M +300,000 New
COPPSERS
25
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$2.88M – – –
1
2

OACC Hedge Fund Activity: Q2 2025 in Review

47 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Oaktree Acquisition Corp III Life Sciences (OACC) for Q2 2025, worth a combined $172M — up 13% from $153M a quarter earlier.

Buyers outnumbered sellers: 11 funds opened new OACC positions and 3 closed out — a net gain of 8 holders — while 8 added to existing stakes and 11 trimmed.

The largest buyer was HighTower Advisors, adding an estimated $5.7M. The largest seller was Harraden Circle Investments, exiting entirely with an estimated $5.14M sold.

  • 47 institutional investors held Oaktree Acquisition Corp III Life Sciences (OACC) as of Q2 2025, up from 39 in Q1 2025.
  • Funds reported $172M of Oaktree Acquisition Corp III Life Sciences stock for Q2 2025, up 13% quarter-over-quarter.
  • 11 funds opened new Oaktree Acquisition Corp III Life Sciences positions in Q2 2025 and 3 closed out, a net change of +8 holders.
  • The largest Oaktree Acquisition Corp III Life Sciences buyer in Q2 2025 was HighTower Advisors, an estimated $5.7M added.
  • The largest Oaktree Acquisition Corp III Life Sciences seller in Q2 2025 was Harraden Circle Investments, an estimated $5.14M sold.

Based on aggregated 13F filings for Q2 2025.