Save your place

Sign in to WhoBought

Please try again later.

Ken Griffin's AnaptysBio, Inc. (ANAB) position

Yes: as of Q1 2026, Ken Griffin holds 233K shares of ANAB worth an amount we cannot price (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
View full portfolio →
Current value
an amount we cannot price
Shares held
233K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

ANAB price vs Griffin's position

Dates
$50$55$60$65$70← Earlier —10 purchases, 7 sells
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +124K +113.2% 233K May 15, 2026
Q4 2025 Added +83K +313.5% 109K Feb 17, 2026
Q3 2025 Reduced −92K −77.6% 26K Nov 14, 2025
Q2 2025 Reduced −254K −68.3% 118K Aug 14, 2025
Q1 2025 Added +199K +114.5% 373K May 15, 2025
Q4 2024 Reduced −32K −15.5% 174K Feb 14, 2025
Q3 2024 Added +125K +153.8% 206K Nov 14, 2024
Q2 2024 Reduced −244K −75.1% 81K Aug 14, 2024
Q1 2024 Added +210K +182.5% 325K May 15, 2024
Q4 2023 Reduced −71K −38.3% 115K Feb 14, 2024
Q3 2023 Added +32K +21.0% 186K Nov 14, 2023
Q2 2023 Added +74K +92.1% 154K Aug 14, 2023
Q1 2023 Reduced −200K −71.4% 80K May 15, 2023
Q4 2022 Reduced −52K −15.7% 281K Feb 14, 2023
Q3 2022 Added +299K +885.6% 333K Nov 14, 2022
Q2 2022 Added +25K +287.5% 34K Aug 15, 2022
Q1 2022 New +9K 9K May 16, 2022
Q1 2021 First covered 38K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
18 grouped rows from 18 quarters

More Griffin positions

Common questions

Does Ken Griffin own ANAB?

Yes. As of Q1 2026, Ken Griffin disclosed 233K shares of ANAB, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy ANAB?

Ken Griffin held ANAB since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell ANAB?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in ANAB. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of ANAB does Ken Griffin own?

Ken Griffin disclosed 233K shares of ANAB as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for ANAB?

Ken Griffin began building the ANAB position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.