SEI Investments’s AnaptysBio ANAB Stock Holding History

SEI Investments’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	$888K	Buy	13,161 +5,507	+72%	+$334K	﹤0.01%	2363
2026 Q1	$424K	Buy	7,654 +2,688	+54%	+$145K	﹤0.01%	2709
2025 Q4	$241K	Sell	4,966 -9,955	-67%	-$388K	﹤0.01%	2825
2025 Q3	$457K	Buy	+14,921	New	+$342K	﹤0.01%	2268
2022 Q1	–	Sell	-7,871	Closed	-$273K	–	2572
2021 Q4	$273K	Buy	7,871 +36	+0.5%	+$1.14K	﹤0.01%	2360
2021 Q3	$212K	Buy	+7,835	New	+$199K	﹤0.01%	2427
2020 Q3	–	Sell	-23,853	Closed	-$533K	–	2401
2020 Q2	$533K	Buy	+23,853	New	+$436K	﹤0.01%	1823
2019 Q4	–	Sell	-9,483	Closed	-$332K	–	2383
2019 Q3	$332K	Hold	9,483	–	–	﹤0.01%	2082
2019 Q2	$535K	Sell	9,483 -1,688	-15%	-$122K	﹤0.01%	1845
2019 Q1	$816K	Buy	11,171 +187	+2%	+$12.9K	﹤0.01%	1670
2018 Q4	$1.1M	Hold	10,984	–	–	﹤0.01%	1496
2018 Q3	$1.1M	Hold	10,984	–	–	﹤0.01%	1438
2018 Q2	$780K	Buy	+10,984	New	+$921K	﹤0.01%	1684
2018 Q1	–	Sell	-4,688	Closed	-$472K	–	3451
2017 Q4	$472K	Buy	+4,688	New	+$345K	﹤0.01%	1688

Other funds holding ANAB

EcoR1 Capital San Francisco, California $2.06B AUM 215.32% 1-Year Est. Return

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 Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AAA

Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return

Sanofi Paris, France $534M AUM 205.96% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

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

SEI Investments's ANAB Position: Q2 2026 in Review

SEI Investments increased its AnaptysBio (ANAB) stake by 72% in Q2 2026, buying an estimated $334K and bringing the position to 13,161 shares worth $888K. The position accounts for ﹤0.01% of the portfolio, ranked #2363.

SEI Investments first reported a position in ANAB in Q4 2017 and has held it in 14 quarters since. The position peaked at $1.1M in Q4 2018. 213 funds tracked by Wall St. Rank hold ANAB as of Q2 2026.

SEI Investments held 13,161 shares of AnaptysBio worth $888K as of Q2 2026.
SEI Investments bought 5,507 AnaptysBio shares in Q2 2026, an estimated $334K.
AnaptysBio made up ﹤0.01% of SEI Investments's portfolio in Q2 2026, its #2363 holding.
SEI Investments first reported a position in AnaptysBio in Q4 2017 and has held it in 14 quarters since.
SEI Investments's AnaptysBio position peaked at $1.1M in Q4 2018.
213 funds tracked by Wall St. Rank held AnaptysBio as of Q2 2026.

Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.