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Martingale Asset Management’s AnaptysBio ANAB Stock Holding History

Martingale Asset Management’s Portfolio ANAB Stock Details ANAB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.35M Sell
19,942
-8,200
-29% -$497K 0.03% 476
2026
Q1 		$1.56M Buy
+28,142
New +$1.51M 0.04% 395
2025
Q1 		– Sell
-28,995
Closed -$384K – 771
2024
Q4 		$384K Hold
28,995
– – 0.01% 647
2024
Q3 		$971K Buy
28,995
+360
+1% +$12.3K 0.02% 461
2024
Q2 		$718K Hold
28,635
– – 0.02% 523
2024
Q1 		$645K Buy
28,635
+16
+0.1% +$379 0.01% 564
2023
Q4 		$613K Hold
28,619
– – 0.01% 560
2023
Q3 		$514K Hold
28,619
– – 0.01% 607
2023
Q2 		$582K Buy
28,619
+1,702
+6% +$34.5K 0.01% 583
2023
Q1 		$586K Buy
26,917
+800
+3% +$19.4K 0.01% 582
2022
Q4 		$809K Buy
26,117
+7
+0% +$198 0.02% 518
2022
Q3 		$667K Buy
26,110
+2,500
+11% +$58.6K 0.01% 551
2022
Q2 		$480K Buy
23,610
+1,101
+5% +$24.4K 0.01% 648
2022
Q1 		$558K Sell
22,509
-2,700
-11% -$81.7K 0.01% 618
2021
Q4 		$877K Sell
25,209
-8,305
-25% -$263K 0.01% 529
2021
Q3 		$910K Buy
33,514
+13,800
+70% +$350K 0.01% 529
2021
Q2 		$512K Buy
19,714
+1,701
+9% +$40.8K 0.01% 585
2021
Q1 		$390K Buy
18,013
+5,197
+41% +$131K ﹤0.01% 680
2020
Q4 		$276K Sell
12,816
-4,802
-27% -$117K ﹤0.01% 759
2020
Q3 		$260K Hold
17,618
– – ﹤0.01% 933
2020
Q2 		$394K Buy
17,618
+297
+2% +$5.43K ﹤0.01% 913
2020
Q1 		$245K Sell
17,321
-1,091
-6% -$16.5K ﹤0.01% 905
2019
Q4 		$300K Buy
+18,412
New +$435K ﹤0.01% 920

Other funds holding ANAB

EC
EcoR1 Capital San Francisco, California $2.06B AUM 215.32% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AAA
Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return
S
Sanofi Paris, France $534M AUM 205.96% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
6CM
683 Capital Management New York $2.04B AUM 94.26% 1-Year Est. Return

Martingale Asset Management's ANAB Position: Q2 2026 in Review

Martingale Asset Management reduced its AnaptysBio (ANAB) stake by 29% in Q2 2026, selling an estimated $497K and leaving 19,942 shares worth $1.35M. The position accounts for 0.03% of the portfolio, ranked #476.

Martingale Asset Management first reported a position in ANAB in Q4 2019 and has held it in 23 quarters since. The position peaked at $1.56M in Q1 2026. 213 funds tracked by Wall St. Rank hold ANAB as of Q2 2026.

  • Martingale Asset Management held 19,942 shares of AnaptysBio worth $1.35M as of Q2 2026.
  • Martingale Asset Management sold 8,200 AnaptysBio shares in Q2 2026, an estimated $497K.
  • AnaptysBio made up 0.03% of Martingale Asset Management's portfolio in Q2 2026, its #476 holding.
  • Martingale Asset Management first reported a position in AnaptysBio in Q4 2019 and has held it in 23 quarters since.
  • Martingale Asset Management's AnaptysBio position peaked at $1.56M in Q1 2026.
  • 213 funds tracked by Wall St. Rank held AnaptysBio as of Q2 2026.

Based on Martingale Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.