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THRD

Third Harmonic Bio
THRD

Delisted

THRD was delisted on the 30th of July, 2025.

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18 hedge funds and large institutions have $1.19M invested in Third Harmonic Bio in 2025 Q3 according to their latest regulatory filings, with 6 funds opening new positions, 2 increasing their positions, 1 reducing their positions, and 93 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more repeat investments, than reductions

Existing positions increased: 2 | Existing positions reduced: 1

76.17% less ownership

Funds ownership: 85.77% → 9.6% (-76%)

83% less funds holding

Funds holding: 105 → 18 (-87)

94% less first-time investments, than exits

New positions opened: 6 | Existing positions closed: 93

99% less capital invested

Capital invested by funds: $210M → $1.19M (-$209M)

100% less funds holding in top 10

Funds holding in top 10: 4 → 0 (-4)

Holders
18
Holders Change
-87
Holders Change %
-82.86%
% of All Funds
0.24%
Holding in Top 10
–
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-100%
% of All Funds
–
New
6
Increased
2
Reduced
1
Closed
93
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
JC
JBF Capital
Colorado
+$1.36M
2
CF
Cantor Fitzgerald
New York
+$469K
3
CSC
Caldwell Sutter Capital
California
+$5.43K
4
Russell Investments Group
Russell Investments Group
United Kingdom
+$2.9K
5
GI
GAMMA Investing
California
+$1.92K

Top Sellers

Rank Fund Capital Flow
1
AVLSA
Atlas Venture Life Science Advisors
Massachusetts
-$56.5M
2
O
OrbiMed
New York
-$31.4M
3
NCM
Nantahala Capital Management
Connecticut
-$16M
4
TCM
TCG Crossover Management
California
-$10.4M
5
BlackRock
BlackRock
New York
-$9.38M
Name Holding Trade Value Shares
Change 		Change in
Stake
OAC
26
OMERS Administration Corp
Ontario, Canada
– -$2.32M -426,900 Closed
AAA
27
Affinity Asset Advisors
New York
– -$2.01M -370,000 Closed
AGM
28
Alpine Global Management
New York
– -$1.82M -334,481 Closed
YCM
29
Yakira Capital Management
Connecticut
– -$1.59M -293,633 Closed
RC
30
Rangeley Capital
Connecticut
– -$1.57M -290,000 Closed
Morgan Stanley
31
Morgan Stanley
New York
– -$1.48M -272,473 Closed
GCIA
32
Gabelli & Co Investment Advisers
New York
– -$1.37M -251,681 Closed
AIMCA
33
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
– -$1.3M -239,389 Closed
VAM
34
Vazirani Asset Management
New York
– -$1.22M -225,500 Closed
Goldman Sachs
35
Goldman Sachs
New York
– -$1.2M -221,090 Closed
6CM
36
683 Capital Management
New York
– -$1.09M -200,000 Closed
LP
37
LMR Partners
United Kingdom
– -$1.09M -200,000 Closed
Northern Trust
38
Northern Trust
Illinois
– -$1.07M -197,549 Closed
Charles Schwab
39
Charles Schwab
California
– -$1.01M -185,797 Closed
Citadel Advisors
40
Citadel Advisors
Florida
– -$656K -120,870 Closed
FIA
41
FNY Investment Advisers
New York
– -$543K -100,100 Closed
Qube Research & Technologies (QRT)
42
Qube Research & Technologies (QRT)
United Kingdom
– -$527K -97,024 Closed
JP Morgan Chase
43
JP Morgan Chase
New York
– -$519K -95,538 Closed
PCM
44
Prelude Capital Management
New York
– -$417K -76,822 Closed
CSS
45
Cubist Systematic Strategies
Connecticut
– -$415K -76,461 Closed
Wellington Management Group
46
Wellington Management Group
Massachusetts
– -$411K -75,658 Closed
AQR Capital Management
47
AQR Capital Management
Connecticut
– -$400K -73,646 Closed
BNP Paribas Financial Markets
48
BNP Paribas Financial Markets
France
– -$399K -73,526 Closed
Millennium Management
49
Millennium Management
New York
– -$322K -59,360 Closed
Two Sigma Investments
50
Two Sigma Investments
New York
– -$319K -58,829 Closed
1
2
3 4 5

THRD Hedge Fund Activity: Q3 2025 in Review

18 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Third Harmonic Bio (THRD) for Q3 2025, worth a combined $1.19M — down 99% from $210M a quarter earlier.

Sellers outnumbered buyers: 93 funds closed out of THRD and 6 opened new positions — a net loss of 87 holders — while 1 trimmed existing stakes and 2 added.

The largest buyer was JBF Capital, opening a new position worth an estimated $1.36M. The largest seller was Atlas Venture Life Science Advisors, exiting entirely with an estimated $56.5M sold.

  • 18 institutional investors held Third Harmonic Bio (THRD) as of Q3 2025, down from 105 in Q2 2025.
  • Funds reported $1.19M of Third Harmonic Bio stock for Q3 2025, down 99% quarter-over-quarter.
  • 6 funds opened new Third Harmonic Bio positions in Q3 2025 and 93 closed out, a net change of -87 holders.
  • The largest Third Harmonic Bio buyer in Q3 2025 was JBF Capital, an estimated $1.36M added.
  • The largest Third Harmonic Bio seller in Q3 2025 was Atlas Venture Life Science Advisors, an estimated $56.5M sold.

Based on aggregated 13F filings for Q3 2025.