ANAPTYSBIO INC ANAB
COM · Common Stock · CUSIP 032724106
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersSan Diego, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 26.5m as of 2023-08-02, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $20.34. Options: 6 managers hold calls ($1.2m notional), 4 hold puts ($1.2m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 114 |
| Q4 2022 | 119 |
| Q1 2023 | 114 |
| Q2 2023 | 117 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 46 | 47 |
| Q1 2023 | 50 | 56 |
| Q2 2023 | 52 | 47 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $6.2m | $17.0k | 0.00 |
| Q4 2022 | $1.2m | $1.1m | 0.94 |
| Q1 2023 | $1.5m | $1.3m | 0.91 |
| Q2 2023 | $1.2m | $1.2m | 0.98 |
Biggest buyers
| Woodline Partners LP | Added | +575.0k |
| First Light Asset Management, LLC | New | +322.2k |
| BRAIDWELL LP | Added | +181.3k |
| MILLENNIUM MANAGEMENT LLC | Added | +137.1k |
| GREAT POINT PARTNERS LLC | Added | +90.0k |
| TWO SIGMA INVESTMENTS, LP | Added | +75.2k |
| CITADEL ADVISORS LLC | Added | +73.9k |
| STATE STREET CORP | Added | +62.9k |
| TWO SIGMA ADVISERS, LP | Added | +57.1k |
| Hudson Bay Capital Management LP | New | +50.0k |
Biggest sellers
| FEDERATED HERMES, INC. | Reduced | -1.3m |
| FMR LLC | Reduced | -290.7k |
| Rock Springs Capital Management LP | Reduced | -235.0k |
| Point72 Asset Management, L.P. | Reduced | -221.2k |
| JPMORGAN CHASE & CO | Reduced | -186.2k |
| NORTHERN TRUST CORP | Reduced | -130.0k |
| TANG CAPITAL MANAGEMENT LLC | Reduced | -82.0k |
| BlackRock Inc. | Reduced | -70.8k |
| Laurion Capital Management LP | Reduced | -54.2k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -53.7k |
Biggest calls
| CITIGROUP INC | New | $610.2k30.0k shares |
| Caption Management, LLC | Reduced | $549.2k27.0k shares |
| CITADEL ADVISORS LLC | Added | $42.7k2.1k shares |
| Cutler Group LLC / CA | New | $2.0k3.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| SIMPLEX TRADING, LLC | New | $0100 shares |
Biggest puts
| CITIGROUP INC | New | $610.2k30.0k shares |
| Caption Management, LLC | Reduced | $549.2k27.0k shares |
| Cutler Group LLC / CA | New | $16.0k3.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -2.2 pts · filed 2025-04-17 | 6.2% |
| Sirenia Capital Management LP 13G · institution -1.7 pts · filed 2026-08-14 | 5.0% |
Fell to 5% or below in the last year: Point72 Asset Management, L.P. (0.2%, 2026-05-15), VANGUARD GROUP INC (0.0%, 2026-03-26), MORGAN STANLEY (3.6%, 2026-02-11), MILLENNIUM MANAGEMENT LLC (2.9%, 2026-01-16)
Insider purchases and sales in Q2 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 2 | $3.9m | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 1 | $14.5m | 2 | $14.5m | — |
| Q3 2022 | 0 | — | 1 | $13.1k | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
None reported in Q2 2023.
Holders, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| EcoR1 Capital, LLC 4.03% of their portfolio | 7.5m $153.0m | Unchanged |
| TANG CAPITAL MANAGEMENT LLC 5.84% of their portfolio | 2.0m $39.7m | Reduced -82.0k |
| BlackRock Inc. 0.00% of their portfolio | 1.8m $37.1m | Reduced -70.8k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.8m $36.1m | Reduced -43.4k |
| Point72 Asset Management, L.P. 0.10% of their portfolio | 1.5m $29.7m | Reduced -221.2k |
| Boxer Capital, LLC 1.23% of their portfolio | 1.3m $26.4m | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 1.2m $24.7m | Added +62.9k |
| BRAIDWELL LP 0.77% of their portfolio | 1.2m $23.5m | Added +181.3k |
| Woodline Partners LP 0.25% of their portfolio | 1.0m $21.0m | Added +575.0k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 904.9k $18.4m | Reduced -53.7k |
| Frazier Life Sciences Management, L.P. 1.09% of their portfolio | 899.7k $18.3m | Unchanged |
| GREAT POINT PARTNERS LLC 3.64% of their portfolio | 894.3k $18.2m | Added +90.0k |
| BAKER BROS. ADVISORS LP 0.09% of their portfolio | 775.9k $15.8m | Unchanged |
| DEERFIELD MANAGEMENT COMPANY, L.P. 0.27% of their portfolio | 613.0k $12.5m | Unchanged |
| Assenagon Asset Management S.A. 0.04% of their portfolio | 495.1k $10.1m | Unchanged |
| Palo Alto Investors LP 0.71% of their portfolio | 431.2k $8.8m | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 397.2k $8.1m | Added +137.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 396.0k $8.1m | Reduced -2.4k |
| 5AM Venture Management, LLC 1.81% of their portfolio | 357.7k $7.3m | Unchanged |
| Rock Springs Capital Management LP 0.17% of their portfolio | 341.6k $6.9m | Reduced -235.0k |
| Blackstone Inc. 0.03% of their portfolio | 328.7k $6.7m | Unchanged |
| First Light Asset Management, LLC 0.51% of their portfolio | 322.2k $6.6m | New |
| FMR LLC 0.00% of their portfolio | 293.6k $6.0m | Reduced -290.7k |
| Laurion Capital Management LP 0.18% of their portfolio | 209.0k $4.3m | Reduced -54.2k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 205.8k $4.2m | Reduced -1.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 202.6k $4.1m | Reduced -130.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.02% of their portfolio | 198.7k $4.0m | Added +39.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 154.1k $3.1m | Added +73.9k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 146.1k $3.0m | Added +75.2k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 139.6k $2.8m | Reduced -9.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 132.0k $2.7m | Reduced -53.6k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 126.0k $2.6m | Added +57.1k |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.05% of their portfolio | 124.5k $2.5m | Added +9.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 120.3k $2.4m | Added +5.6k |
| MACQUARIE GROUP LTD 0.00% of their portfolio | 93.7k $1.9m | Unchanged |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 92.7k $1.9m | Added +15.3k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 88.6k $1.8m | Reduced -45.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 87.9k $1.8m | Added +1.0k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 72.4k $1.5m | Reduced -3.8k |
| MORGAN STANLEY 0.00% of their portfolio | 71.6k $1.5m | Reduced -27.0k |
| Fisher Asset Management, LLC 0.00% of their portfolio | 70.7k $1.4m | Unchanged |
| Bank of New York Mellon Corp 0.00% of their portfolio | 69.4k $1.4m | Reduced -6.6k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 58.0k $1.2m | Reduced -13.6k |
| SG Americas Securities, LLC 0.01% of their portfolio | 56.9k $1.2m | Reduced -1.2k |
| Hudson Bay Capital Management LP 0.01% of their portfolio | 50.0k $1.0m | New |
| BARCLAYS PLC 0.00% of their portfolio | 48.7k $989.8k | Added +14.3k |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 43.4k $883.6k | Unchanged |
| Swiss National Bank 0.00% of their portfolio | 42.6k $866.5k | Added +5.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 41.0k $833.5k | Reduced -18.1k |
| HighVista Strategies LLC 0.35% of their portfolio | 37.7k $765.8k | Added +12.4k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 36.0k $733.1k | Reduced -1.3m |
| FMB WEALTH MANAGEMENT 0.77% of their portfolio | 35.6k $723.9k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 35.2k $715.9k | Added +31.7k |
| CITIGROUP INC 0.00% of their portfolio | 33.8k $687.4k | Reduced -30.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 32.5k $661.5k | Added +3.9k |
| Squarepoint Ops LLC 0.00% of their portfolio | 31.5k $640.4k | Added +1.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 30.4k $618.2k | Reduced -3.1k |
| Jump Financial, LLC 0.02% of their portfolio | 29.3k $595.1k | New |
| MARTINGALE ASSET MANAGEMENT L P 0.01% of their portfolio | 28.6k $582.1k | Added +1.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 27.5k $559.5k | Reduced -186.2k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 25.9k $527.8k | Added +4.7k |
| Verition Fund Management LLC 0.01% of their portfolio | 24.4k $495.9k | New |
| OPPENHEIMER & CO INC 0.01% of their portfolio | 23.5k $478.5k | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 23.5k $478.5k | Added +1.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 23.4k $476.6k | Added +7.0k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 23.1k $471.0k | Added +5.2k |
| ALPS ADVISORS INC 0.00% of their portfolio | 19.5k $396.0k | Added +1.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 19.4k $395.2k | Reduced -13.1k |
| GSA CAPITAL PARTNERS LLP 0.04% of their portfolio | 18.7k $381.0k | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 17.1k $348.0k | Added +216 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 16.9k $368.2k | Unchanged |
| PROFUND ADVISORS LLC 0.02% of their portfolio | 16.8k $342.6k | Added +2.4k |
| Legal & General Group Plc 0.00% of their portfolio | 16.6k $337.9k | Added +7.2k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 14.7k $299.0k | Reduced -609 |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 13.5k $275.3k | New |
| MARSHALL WACE, LLP 0.00% of their portfolio | 13.3k $270.5k | Reduced -11.1k |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 12.4k $251.4k | Added +137 |
| ALGERT GLOBAL LLC 0.01% of their portfolio | 11.8k $239.8k | New |
| B. Riley Wealth Advisors, Inc. 0.01% of their portfolio | 11.6k $236.5k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 11.0k $224.6k | Unchanged |
| TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio | 10.3k $209.6k | Reduced -4.9k |
| Invesco Ltd. 0.00% of their portfolio | 10.1k $204.8k | New |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 9.2k $186.2k | Reduced -628 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 7.9k $161.1k | Reduced -4.7k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 7.8k $159.0k | Reduced -6.7k |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.00% of their portfolio | 6.2k $127.0k | Unchanged |
| VIRTUS ADVISERS, LLC 0.07% of their portfolio | 5.9k $119.2k | Added +2.4k |
| Quantbot Technologies LP 0.01% of their portfolio | 4.6k $93.2k | Added +481 |
| Caption Management, LLC 0.01% of their portfolio | 3.4k $69.5k | New |
| AMALGAMATED BANK 0.00% of their portfolio | 2.7k $55.0k | Added +680 |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 2.5k $51.2k | Reduced -147 |
| Amundi 0.00% of their portfolio | 1.5k $30.2k | Unchanged |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.5k $30.8k | Unchanged |
| Cutler Group LLC / CA 0.01% of their portfolio | 1.5k $30.0k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.5k $31.0k | Added +347 |
| Metropolitan Life Insurance Co/NY 0.00% of their portfolio | 1.2k $24.6k | Unchanged |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 1.1k $23.2k | Added +137 |
| Gladius Capital Management LP 0.01% of their portfolio | 1.1k $22.0k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 1.0k $21.0k | Added +169 |
| US BANCORP \DE\ 0.00% of their portfolio | 754 $15.3k | Unchanged |