Renaissance Technologies
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Renaissance Technologies’s AnaptysBio ANAB Stock Holding History

Renaissance Technologies’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 		$3.94M Sell
58,300
-32,600
-36% -$1.98M 0.01% 1585
2026
Q1 		$5.04M Buy
90,900
+14,600
+19% +$786K 0.01% 1378
2025
Q4 		$3.7M Sell
76,300
-47,000
-38% -$1.83M 0.01% 1501
2025
Q3 		$3.78M Sell
123,300
-139,786
-53% -$3.21M 0.01% 1654
2025
Q2 		$5.84M Sell
263,086
-75,614
-22% -$1.58M 0.01% 1424
2025
Q1 		$6.3M Buy
338,700
+145,500
+75% +$2.43M 0.01% 1279
2024
Q4 		$2.56M Sell
193,200
-7,200
-4% -$174K ﹤0.01% 1887
2024
Q3 		$6.71M Buy
200,400
+47,698
+31% +$1.63M 0.01% 1265
2024
Q2 		$3.83M Buy
152,702
+52,502
+52% +$1.22M 0.01% 1474
2024
Q1 		$2.26M Buy
100,200
+4,600
+5% +$109K ﹤0.01% 1953
2023
Q4 		$2.05M Buy
95,600
+2,900
+3% +$50K ﹤0.01% 1937
2023
Q3 		$1.67M Buy
92,700
+34,700
+60% +$662K ﹤0.01% 1973
2023
Q2 		$1.18M Sell
58,000
-13,600
-19% -$276K ﹤0.01% 2371
2023
Q1 		$1.56M Buy
+71,600
New +$1.74M ﹤0.01% 2180
2022
Q3 		– Sell
-29,600
Closed -$601K – 4000
2022
Q2 		$601K Sell
29,600
-28,700
-49% -$636K ﹤0.01% 3048
2022
Q1 		$1.44M Buy
58,300
+23,700
+68% +$717K ﹤0.01% 2468
2021
Q4 		$1.2M Sell
34,600
-34,100
-50% -$1.08M ﹤0.01% 2509
2021
Q3 		$1.86M Sell
68,700
-155,600
-69% -$3.95M ﹤0.01% 2144
2021
Q2 		$5.82M Sell
224,300
-6,482
-3% -$155K 0.01% 1540
2021
Q1 		$4.97M Buy
230,782
+96,182
+71% +$2.43M 0.01% 1651
2020
Q4 		$2.89M Buy
134,600
+107,800
+402% +$2.62M ﹤0.01% 1912
2020
Q3 		$395K Buy
+26,800
New +$484K ﹤0.01% 2902
2020
Q2 		– Sell
-293,500
Closed -$4.15M – 3413
2020
Q1 		$4.15M Buy
293,500
+201,100
+218% +$3.05M ﹤0.01% 1678
2019
Q4 		$1.5M Buy
+92,400
New +$2.19M ﹤0.01% 2449
2018
Q2 		– Sell
-59,400
Closed -$6.18M – 3243
2018
Q1 		$6.18M Sell
59,400
-68,100
-53% -$7.68M 0.01% 1683
2017
Q4 		$12.8M Buy
127,500
+29,700
+30% +$2.19M 0.01% 1227
2017
Q3 		$3.42M Buy
+97,800
New +$2.64M ﹤0.01% 1992

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

Renaissance Technologies's ANAB Position: Q2 2026 in Review

Renaissance Technologies reduced its AnaptysBio (ANAB) stake by 36% in Q2 2026, selling an estimated $1.98M and leaving 58,300 shares worth $3.94M. The position accounts for 0.01% of the portfolio, ranked #1585.

Renaissance Technologies first reported a position in ANAB in Q3 2017 and has held it in 27 quarters since. The position peaked at $12.8M in Q4 2017. 213 funds tracked by Wall St. Rank hold ANAB as of Q2 2026.

  • Renaissance Technologies held 58,300 shares of AnaptysBio worth $3.94M as of Q2 2026.
  • Renaissance Technologies sold 32,600 AnaptysBio shares in Q2 2026, an estimated $1.98M.
  • AnaptysBio made up 0.01% of Renaissance Technologies's portfolio in Q2 2026, its #1585 holding.
  • Renaissance Technologies first reported a position in AnaptysBio in Q3 2017 and has held it in 27 quarters since.
  • Renaissance Technologies's AnaptysBio position peaked at $12.8M in Q4 2017.
  • 213 funds tracked by Wall St. Rank held AnaptysBio as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.