American Century Companies
THRD

American Century Companies’s Third Harmonic Bio THRD Stock Holding History

American Century Companies’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
-34,299
Closed -$186K – 2879
2025
Q2 		$186K Buy
34,299
+2,632
+8% +$13.1K ﹤0.01% 2746
2025
Q1 		$110K Buy
31,667
+4,417
+16% +$21.4K ﹤0.01% 2820
2024
Q4 		$280K Buy
27,250
+4,973
+22% +$62K ﹤0.01% 2703
2024
Q3 		$302K Buy
22,277
+11,469
+106% +$142K ﹤0.01% 2646
2024
Q2 		$141K Buy
+10,808
New +$134K ﹤0.01% 2783

Other funds holding THRD

Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
CF
Cantor Fitzgerald New York $6.78B AUM 28.97% 1-Year Est. Return
RhumbLine Advisers
RhumbLine Advisers Boston, Massachusetts $117B AUM 29.66% 1-Year Est. Return
MIM
MetLife Investment Management Whippany, New Jersey $19.6B AUM 32.64% 1-Year Est. Return
JC
JBF Capital Aspen, Colorado $676M AUM 24.74% 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 $289B AUM 33.63% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

American Century Companies's THRD Position: Q3 2025 in Review

American Century Companies sold out of Third Harmonic Bio (THRD) in Q3 2025, closing a stake of 34,299 shares — an estimated $186K sold.

American Century Companies first reported a position in THRD in Q2 2024 and held it in 5 quarters. The position peaked at $302K in Q3 2024. 18 funds tracked by Wall St. Rank hold THRD as of Q3 2025.

  • American Century Companies reported no remaining Third Harmonic Bio position as of Q3 2025 after selling out during the quarter.
  • American Century Companies sold 34,299 Third Harmonic Bio shares in Q3 2025, an estimated $186K.
  • American Century Companies first reported a position in Third Harmonic Bio in Q2 2024 and held it in 5 quarters.
  • American Century Companies's Third Harmonic Bio position peaked at $302K in Q3 2024.
  • 18 funds tracked by Wall St. Rank held Third Harmonic Bio as of Q3 2025.

Based on American Century Companies's 13F filing for Q3 2025, filed 12 Nov 2025.