American Century Companies’s AnaptysBio ANAB Stock Holding History

American Century Companies’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	$599K	Buy	+8,877	New	+$538K	﹤0.01%	2547
2024 Q1	–	Sell	-11,012	Closed	-$236K	–	2927
2023 Q4	$236K	Buy	11,012 +159	+1%	+$2.74K	﹤0.01%	2646
2023 Q3	$195K	Buy	+10,853	New	+$207K	﹤0.01%	2601
2019 Q4	–	Sell	-29,933	Closed	-$1.05M	–	1501
2019 Q3	$1.05M	Buy	29,933 +1,841	+7%	+$87.6K	﹤0.01%	1026
2019 Q2	$1.58M	Sell	28,092 -94	-0.3%	-$6.77K	﹤0.01%	1045
2019 Q1	$2.06M	Sell	28,186 -1,340	-5%	-$92.5K	﹤0.01%	988
2018 Q4	$1.88M	Sell	29,526 -829	-3%	-$61.6K	﹤0.01%	983
2018 Q3	$3.03M	Sell	30,355 -241	-0.8%	-$20K	﹤0.01%	957
2018 Q2	$2.17M	Buy	30,596 +8,044	+36%	+$675K	﹤0.01%	1007
2018 Q1	$2.35M	Buy	22,552 +2,322	+11%	+$262K	﹤0.01%	973
2017 Q4	$2.04M	Buy	+20,230	New	+$1.49M	﹤0.01%	1007

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 $3.38T AUM 44.17% 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

American Century Companies's ANAB Position: Q2 2026 in Review

American Century Companies opened a new position in AnaptysBio (ANAB) in Q2 2026: 8,877 shares worth $599K. The stake represents ﹤0.01% of the portfolio and ranks #2547 among its holdings. This is a return to the name: American Century Companies previously reported a position in ANAB as recently as Q4 2023.

American Century Companies first reported a position in ANAB in Q4 2017 and has held it in 11 quarters since. The position peaked at $3.03M in Q3 2018. 213 funds tracked by Wall St. Rank hold ANAB as of Q2 2026.

American Century Companies held 8,877 shares of AnaptysBio worth $599K as of Q2 2026.
AnaptysBio was a new American Century Companies position in Q2 2026.
AnaptysBio made up ﹤0.01% of American Century Companies's portfolio in Q2 2026, its #2547 holding.
American Century Companies first reported a position in AnaptysBio in Q4 2017 and has held it in 11 quarters since.
American Century Companies's AnaptysBio position peaked at $3.03M in Q3 2018.
213 funds tracked by Wall St. Rank held AnaptysBio as of Q2 2026.

Based on American Century Companies's 13F filing for Q2 2026, filed 12 Aug 2026.