JY
THRD

Jeff Yass’s Third Harmonic Bio THRD Stock Holding History

Jeff Yass’s Portfolio THRD Stock Details THRD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-109,100
Closed -$592K – 13873
2025
Q2 		$592K Buy
+109,100
New +$544K ﹤0.01% 8791

Other funds holding THRD

Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
CF
Cantor Fitzgerald New York $9.31B AUM 73.66% 1-Year Est. Return
RhumbLine Advisers
RhumbLine Advisers Boston, Massachusetts $133B AUM 43.5% 1-Year Est. Return
MIM
MetLife Investment Management Whippany, New Jersey $22.1B AUM 45.54% 1-Year Est. Return
JC
JBF Capital Aspen, Colorado $764M AUM 24.26% 1-Year Est. Return
Russell Investments Group
Russell Investments Group London, United Kingdom $114B AUM 41.71% 1-Year Est. Return
AB
Amalgamated Bank New York $14.5B AUM 44.3% 1-Year Est. Return
GI
GAMMA Investing Foster City, California $2.69B AUM 42.78% 1-Year Est. Return
Optiver Holding
Optiver Holding Amsterdam, Netherlands $371B AUM 64.6% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Jeff Yass's THRD Position: Q3 2025 in Review

Jeff Yass sold out of Third Harmonic Bio (THRD) in Q3 2025, closing a stake of 35,583 shares — an estimated $193K sold.

Jeff Yass first reported a position in THRD in Q1 2024 and held it in 4 quarters. The position peaked at $289K in Q1 2024. 18 funds tracked by Wall St. Rank hold THRD as of Q3 2025.

  • Jeff Yass reported no remaining Third Harmonic Bio position as of Q3 2025 after selling out during the quarter.
  • Jeff Yass sold 35,583 Third Harmonic Bio shares in Q3 2025, an estimated $193K.
  • Jeff Yass first reported a position in Third Harmonic Bio in Q1 2024 and held it in 4 quarters.
  • Jeff Yass's Third Harmonic Bio position peaked at $289K in Q1 2024.
  • 18 funds tracked by Wall St. Rank held Third Harmonic Bio as of Q3 2025.

Based on Susquehanna International Group's 13F filing for Q3 2025, filed 14 Nov 2025.