Simplex Trading
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Simplex Trading’s AnaptysBio ANAB Stock Holding History

Simplex Trading’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 		$959K Buy
14,200
+14,100
+14,100% +$855K ﹤0.01% 2832
2026
Q1 		$5.55K Sell
100
-5,000
-98% -$269K ﹤0.01% 7823
2025
Q4 		$247K Sell
5,100
-9,900
-66% -$386K ﹤0.01% 4012
2025
Q3 		$459K Buy
15,000
+13,700
+1,054% +$314K ﹤0.01% 3934
2025
Q2 		$28K Sell
1,300
-4,500
-78% -$94.2K ﹤0.01% 6452
2025
Q1 		$107K Sell
5,800
-195,800
-97% -$3.27M ﹤0.01% 4987
2024
Q4 		$2.67M Buy
201,600
+195,100
+3,002% +$4.73M ﹤0.01% 1955
2024
Q3 		$217K Buy
+6,500
New +$222K ﹤0.01% 4437
2024
Q2 		– Sell
-200
Closed -$4K – 8700
2024
Q1 		$4K Hold
200
– – ﹤0.01% 8078
2023
Q4 		$4K Buy
+200
New +$3.45K ﹤0.01% 7930
2023
Q1 		– Sell
-700
Closed -$21K – 8930
2022
Q4 		$21K Hold
700
– – ﹤0.01% 6818
2022
Q3 		$17K Buy
+700
New +$16.4K ﹤0.01% 7663
2021
Q4 		– Sell
-600
Closed -$15K – 10396
2021
Q3 		$15K Hold
600
– – ﹤0.01% 8651
2021
Q2 		$15K Buy
600
+57
+10% +$1.37K ﹤0.01% 8809
2021
Q1 		$1.17M Buy
543
+536
+7,657% +$13.5K ﹤0.01% 2221
2020
Q4 		$15K Buy
+7
New +$170 ﹤0.01% 7148
2020
Q3 		– Sell
-1
Closed -$2K – 7721
2020
Q2 		$2K Sell
1
-432
-100% -$7.9K ﹤0.01% 7219
2020
Q1 		$611K Sell
433
-253
-37% -$3.84K ﹤0.01% 2388
2019
Q4 		$1.11M Buy
686
+683
+22,767% +$16.2K ﹤0.01% 1995
2019
Q3 		$10K Sell
3
-79
-96% -$3.76K ﹤0.01% 6233
2019
Q2 		$462K Buy
82
+56
+215% +$4.03K ﹤0.01% 2635
2019
Q1 		$189K Buy
26
+24
+1,200% +$1.66K ﹤0.01% 3679
2018
Q4 		$12K Sell
2
-309
-99% -$23K ﹤0.01% 5708
2018
Q3 		$3.1M Buy
311
+306
+6,120% +$25.4K 0.01% 913
2018
Q2 		$35K Sell
5
-2
-29% -$168 ﹤0.01% 5406
2018
Q1 		$13K Buy
+7
New +$789 ﹤0.01% 3758

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

Simplex Trading's ANAB Position: Q2 2026 in Review

Simplex Trading opened a new position in AnaptysBio (ANAB) in Q2 2026: 1,267 shares worth $85.5K. The stake represents ﹤0.01% of the portfolio and ranks #5743 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ANAB as recently as Q3 2024.

Simplex Trading first reported a position in ANAB in Q1 2018 and has held it in 14 quarters since. The position peaked at $332K in Q1 2021. 214 funds tracked by Wall St. Rank hold ANAB as of Q2 2026.

  • Simplex Trading held 1,267 shares of AnaptysBio worth $85.5K as of Q2 2026.
  • AnaptysBio was a new Simplex Trading position in Q2 2026.
  • AnaptysBio made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #5743 holding.
  • Simplex Trading first reported a position in AnaptysBio in Q1 2018 and has held it in 14 quarters since.
  • Simplex Trading's AnaptysBio position peaked at $332K in Q1 2021.
  • 214 funds tracked by Wall St. Rank held AnaptysBio as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.