Citadel Advisors
TECX

Citadel Advisors’s Tectonic Therapeutic TECX Stock Holding History

Citadel Advisors’s Portfolio TECX Stock Details TECX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.62M Buy
52,400
+7,700
+17% +$189K ﹤0.01% 6559
2025
Q4 		$932K Buy
+44,700
New +$831K ﹤0.01% 7553
2024
Q2 		– Sell
-750
Closed -$11.5K – 15618
2024
Q1 		$11.5K Sell
750
-333
-31% -$5.27K ﹤0.01% 13405
2023
Q4 		$17.7K Buy
1,083
+350
+48% +$6.01K ﹤0.01% 12730
2023
Q3 		$13.6K Buy
733
+125
+21% +$2.21K ﹤0.01% 12916
2023
Q2 		$6.94K Hold
608
– – ﹤0.01% 13396
2023
Q1 		$7.3K Buy
608
+33
+6% +$460 ﹤0.01% 13739
2022
Q4 		$4.92K Buy
+575
New +$5.06K ﹤0.01% 14054
2022
Q3 		– Sell
-1,933
Closed -$21K – 13774
2022
Q2 		$21K Sell
1,933
-7,859
-80% -$92.6K ﹤0.01% 12392
2022
Q1 		$155K Buy
9,792
+275
+3% +$5.68K ﹤0.01% 11829
2021
Q4 		$440K Buy
+9,517
New +$547K ﹤0.01% 10001
2021
Q3 		– Sell
-842
Closed -$90K – 14807
2021
Q2 		$90K Sell
842
-2,908
-78% -$345K ﹤0.01% 13000
2021
Q1 		$571K Buy
3,750
+2,575
+219% +$419K ﹤0.01% 9394
2020
Q4 		$197K Buy
+1,175
New +$209K ﹤0.01% 9742
2020
Q3 		– Sell
-1,358
Closed -$284K – 10859
2020
Q2 		$284K Buy
+1,358
New +$280K ﹤0.01% 7998

Other funds holding TECX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $61.9B AUM 29.81% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $3B AUM 46.72% 1-Year Est. Return
FLAM
First Light Asset Management Edina, Minnesota $1.12B AUM 114.45% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
5VM
5AM Venture Management San Francisco, California $360M AUM 345.76% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPC
Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return

Citadel Advisors's TECX Position: Q1 2026 in Review

Citadel Advisors sold out of Tectonic Therapeutic (TECX) in Q1 2026, closing a stake of 317,617 shares — an estimated $7.82M sold.

Citadel Advisors first reported a position in TECX in Q2 2018 and held it in 28 quarters. The position peaked at $77.4M in Q3 2018. 111 funds tracked by Wall St. Rank hold TECX as of Q1 2026.

  • Citadel Advisors reported no remaining Tectonic Therapeutic position as of Q1 2026 after selling out during the quarter.
  • Citadel Advisors sold 317,617 Tectonic Therapeutic shares in Q1 2026, an estimated $7.82M.
  • Citadel Advisors first reported a position in Tectonic Therapeutic in Q2 2018 and held it in 28 quarters.
  • Citadel Advisors's Tectonic Therapeutic position peaked at $77.4M in Q3 2018.
  • 111 funds tracked by Wall St. Rank held Tectonic Therapeutic as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.