Fidelity Investments
TECX

Fidelity Investments’s Tectonic Therapeutic TECX Stock Holding History

Fidelity Investments’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
Q2 		$97.3M Buy
2,830,378
+13,884
+0.5% +$408K ﹤0.01% 1236
2026
Q1 		$87.1M Buy
2,816,494
+9,052
+0.3% +$223K ﹤0.01% 1237
2025
Q4 		$58.6M Buy
2,807,442
+661
+0% +$12.3K ﹤0.01% 1378
2025
Q3 		$44M Buy
2,806,781
+5,905
+0.2% +$122K ﹤0.01% 1480
2025
Q2 		$55.7M Buy
2,800,876
+1,476
+0.1% +$29.9K ﹤0.01% 1357
2025
Q1 		$49.6M Buy
2,799,400
+1,283,065
+85% +$41.8M ﹤0.01% 1364
2024
Q4 		$70M Buy
1,516,335
+296,197
+24% +$12.5M ﹤0.01% 1259
2024
Q3 		$37M Buy
1,220,138
+142,600
+13% +$2.61M ﹤0.01% 1493
2024
Q2 		$17.7M Buy
1,077,538
+909,402
+541% +$14.6M ﹤0.01% 1693
2024
Q1 		$25M Buy
+168,136
New +$2.66M ﹤0.01% 1576
2022
Q4 		– Sell
-111
Closed -$1K – 5619
2022
Q3 		$1K Sell
111
-300
-73% -$3.33K ﹤0.01% 4758
2022
Q2 		$5K Buy
411
+307
+295% +$3.62K ﹤0.01% 4337
2022
Q1 		$2K Buy
104
+62
+148% +$1.28K ﹤0.01% 4723
2021
Q4 		$2K Sell
42
-6,944
-99% -$399K ﹤0.01% 4060
2021
Q3 		$468K Sell
6,986
-1,510
-18% -$124K ﹤0.01% 2811
2021
Q2 		$906K Sell
8,496
-14,425
-63% -$1.71M ﹤0.01% 2683
2021
Q1 		$3.49M Sell
22,921
-24,367
-52% -$3.96M ﹤0.01% 2351
2020
Q4 		$7.91M Buy
47,288
+9,692
+26% +$1.72M ﹤0.01% 2044
2020
Q3 		$5.87M Sell
37,596
-27,125
-42% -$5.46M ﹤0.01% 2018
2020
Q2 		$13.6M Hold
64,721
– – ﹤0.01% 1701
2020
Q1 		$12.1M Buy
64,721
+46,457
+254% +$10.9M ﹤0.01% 1634
2019
Q4 		$4.41M Buy
18,264
+8,227
+82% +$1.59M ﹤0.01% 2080
2019
Q3 		$1.7M Buy
+10,037
New +$2.27M ﹤0.01% 2306
2018
Q4 		– Sell
-11,492
Closed -$7.15M – 4246
2018
Q3 		$7.15M Sell
11,492
-30,175
-72% -$13.4M ﹤0.01% 2038
2018
Q2 		$14.3M Buy
+41,667
New +$15M ﹤0.01% 1831

Other funds holding TECX

TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
FLAM
First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
5VM
5AM Venture Management San Francisco, California $288M AUM 313.93% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $2.7B AUM 88.53% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
VPC
Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return
BG
Bollard Group Boston, Massachusetts $3.29B AUM 4.86% 1-Year Est. Return

Fidelity Investments's TECX Position: Q2 2026 in Review

Fidelity Investments increased its Tectonic Therapeutic (TECX) stake by 0.49% in Q2 2026, buying an estimated $408K and bringing the position to 2,830,378 shares worth $97.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1236.

Fidelity Investments first reported a position in TECX in Q2 2018 and has held it in 25 quarters since. 123 funds tracked by Wall St. Rank hold TECX as of Q2 2026.

  • Fidelity Investments held 2,830,378 shares of Tectonic Therapeutic worth $97.3M as of Q2 2026.
  • Fidelity Investments bought 13,884 Tectonic Therapeutic shares in Q2 2026, an estimated $408K.
  • Tectonic Therapeutic made up ﹤0.01% of Fidelity Investments's portfolio in Q2 2026, its #1236 holding.
  • Fidelity Investments first reported a position in Tectonic Therapeutic in Q2 2018 and has held it in 25 quarters since.
  • 123 funds tracked by Wall St. Rank held Tectonic Therapeutic as of Q2 2026.

Based on Fidelity Investments's 13F filing for Q2 2026, filed 13 Aug 2026.