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Anaptysbio, Inc

ANAB
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001370053

In the last 90 days, Anaptysbio, Inc insiders filed 0 open-market purchases and 1 sale; 213 institutions reported holding it in 13F filings for Q2 2026, worth $2.03B in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Anaptysbio, Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
208
+31 vs. Q4 2025
Shares held
28.3M
+441.4K (+1.6%) vs. Q4 2025
Total value
$1.55B
+$203.4M (+15.1%) vs. Q4 2025
New holders
51
59 more added
Sold out
20
70 more reduced

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ANAB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 208 institutions
Q1 2021: 122 institutionsQ2 2021: 122 institutionsQ3 2021: 127 institutionsQ4 2021: 136 institutionsQ1 2022: 131 institutionsQ2 2022: 124 institutionsQ3 2022: 114 institutionsQ4 2022: 118 institutionsQ1 2023: 113 institutionsQ2 2023: 116 institutionsQ3 2023: 116 institutionsQ4 2023: 119 institutionsQ1 2024: 133 institutionsQ2 2024: 135 institutionsQ3 2024: 160 institutionsQ4 2024: 136 institutionsQ1 2025: 153 institutionsQ2 2025: 148 institutionsQ3 2025: 166 institutionsQ4 2025: 179 institutionsQ1 2026: 208 institutionsQ2 2026: 213 institutions
Value heldQ1 2026: $1.55B
Q1 2021: $628.6MQ2 2021: $720.6MQ3 2021: $748.8MQ4 2021: $964.4MQ1 2022: $735.4MQ2 2022: $632.6MQ3 2022: $830.6MQ4 2022: $1.02BQ1 2023: $675.4MQ2 2023: $614.9MQ3 2023: $544.5MQ4 2023: $646.4MQ1 2024: $658.1MQ2 2024: $746.6MQ3 2024: $1.13BQ4 2024: $468.9MQ1 2025: $742.8MQ2 2025: $816.2MQ3 2025: $980.2MQ4 2025: $1.42BQ1 2026: $1.55BQ2 2026: $2.03B
Institutions holding ANAB and their total value by quarter
QuarterHoldersValue
Q2 2026213$2.03B
Q1 2026208$1.55B
Q4 2025179$1.42B
Q3 2025166$980.2M
Q2 2025148$816.2M
Q1 2025153$742.8M
Q4 2024136$468.9M
Q3 2024160$1.13B
Q2 2024135$746.6M
Q1 2024133$658.1M
Q4 2023119$646.4M
Q3 2023116$544.5M
Q2 2023116$614.9M
Q1 2023113$675.4M
Q4 2022118$1.02B
Q3 2022114$830.6M
Q2 2022124$632.6M
Q1 2022131$735.4M
Q4 2021136$964.4M
Q3 2021127$748.8M
Q2 2021122$720.6M
Q1 2021122$628.6M

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Anaptysbio, Inc; share changes are against Q4 2025.

Institutions holding ANAB in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Acadian Asset Management LLC13,219$730.0K0.00%+7,410+127.6%Added
Brinker Capital Investments, LLC13,129$728.1K0.01%−1,568−10.7%Reduced
Oxford Asset Management LLP12,676$703.0K0.28%+12,676New
Profund Advisors LLC12,202$676.7K0.02%−886−6.8%Reduced
Vanguard Global Advisers, LLC11,754$651.9K0.00%+11,754New
JPMorgan Chase & Co11,645$645.0K0.00%+729+6.7%Added
Brevan Howard Capital Management LP11,028$611.6K0.01%+11,028New
Mirae Asset Global ETFs Holdings Ltd.10,486$581.4K0.00%−155−1.5%Reduced
MetLife Investment Management10,173$564.2K0.00%−154−1.5%Reduced
Manufacturers Life Insurance Company, The10,166$563.8K0.00%+4,484+78.9%Added
Vanguard Asset Management, Ltd9,690$537.4K0.00%+9,690New
Zurcher Kantonalbank (Zurich Cantonalbank)9,599$532.4K0.00%+313+3.4%Added
SEI Investments Co7,654$424.5K0.00%+2,688+54.1%Added
Ground Swell Capital, LLC7,610$422.1K0.83%+7,610New
Janus Henderson Group PLC7,464$413.9K0.00%00.0%Unchanged
Barclays PLC7,440$412.6K0.00%−52,214−87.5%Reduced
ExodusPoint Capital Management, LP7,260$402.6K0.00%−76,053−91.3%Reduced
New York State Common Retirement Fund6,988$387.6K0.00%−2,100−23.1%Reduced
Duncan Williams Asset Management, LLC6,525$361.9K0.10%00.0%Unchanged
Vinva Investment Management Ltd4,383$354.2K0.00%+4,383New
Glenmede Trust Co NA6,381$353.9K0.00%−965−13.1%Reduced
Savant Capital, LLC6,174$342.4K0.00%−121−1.9%Reduced
China Universal Asset Management Co., Ltd.6,164$341.9K0.03%−1,348−17.9%Reduced
Quantinno Capital Management LP6,084$337.4K0.00%−350−5.4%Reduced
Virtus Investment Advisers, Inc.6,067$336.5K0.09%+148+2.5%Added
Soleus Capital Management, L.P.6,000$332.8K0.01%−129,000−95.6%Reduced
Envestnet Asset Management Inc5,851$324.5K0.00%−246−4.0%Reduced
Ascent Group, LLC5,622$311.8K0.01%−40−0.7%Reduced
Integrated Quantitative Investments LLC5,606$310.9K0.06%+5,606New
FMB Wealth Management5,592$310.1K0.13%00.0%Unchanged
State Board of Administration of Florida Retirement System5,526$306.5K0.00%00.0%Unchanged
Bayforest Capital Ltd5,244$290.8K0.33%+5,244New
Intech Investment Management LLC5,086$282.1K0.00%−1,836−26.5%Reduced
Tudor Investment Corp Et Al4,962$275.2K0.00%−12,343−71.3%Reduced
Police & Firemen's Retirement System of New Jersey4,937$273.8K0.00%−704−12.5%Reduced
Balyasny Asset Management LLC4,905$272.0K0.00%+4,905New
Public Employees Retirement Association of Colorado4,864$270.0K0.00%00.0%Unchanged
State of New Jersey Common Pension Fund D4,784$265.3K0.00%+4,784New
Axq Capital, LP4,715$261.5K0.03%+4,715New
Hillsdale Investment Management Inc.4,620$256.2K0.01%+4,620New
Latash Investments, LLC4,393$243.6K0.19%00.0%Unchanged
Dynamic Technology Lab Private Ltd4,360$241.8K0.04%+4,360New
Royal Bank of Canada4,219$234.0K0.00%+2,501+145.6%Added
Allen Capital Group, LLC4,124$228.7K0.02%+4,124New
Moran Wealth Management, LLC4,064$225.4K0.01%+4,064New
Jump Financial, LLC3,900$216.3K0.00%−116,317−96.8%Reduced
ProShare Advisors LLC3,884$215.4K0.00%−714−15.5%Reduced
Arizona State Retirement System3,845$213.2K0.00%+3,845New
Mangrove Partners3,708$205.6K0.02%+3,708New
ADAR1 Capital Management, LLC3,698$205.1K0.01%+3,698New
Vanguard Investments Australia, Ltd.3,575$198.3K0.00%+3,575New
KLP Kapitalforvaltning AS3,000$166.4K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)2,898$160.7K0.00%+2,171+298.6%Added
Caitong International Asset Management Co., Ltd2,329$129.2K0.02%+799+52.2%Added
Advisor Group Holdings, Inc.2,046$113.5K0.00%−25,691−92.6%Reduced
Aster Capital Management (DIFC) Ltd5,218$97.0K0.03%+5,093+4,074.4%Added
US Bancorp1,635$90.7K0.00%−7−0.4%Reduced
Larson Financial Group LLC1,626$90.2K0.00%+2+0.1%Added
Ameritas Investment Partners, Inc.1,494$82.9K0.00%−153−9.3%Reduced
Bessemer Group Inc1,428$79.0K0.00%−33−2.3%Reduced
CWM, LLC1,015$56.3K0.00%+4+0.4%Added
Mirae Asset Global Investments Co., Ltd.1,444$53.4K0.00%+99+7.4%Added
EverSource Wealth Advisors, LLC903$50.1K0.00%+28+3.2%Added
Smartleaf Asset Management LLC840$46.5K0.00%+5+0.6%Added
SBI Securities Co., Ltd.788$43.7K0.00%−1,046−57.0%Reduced
Great West Life Assurance Co750$42.0K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC649$36.0K0.00%−314−32.6%Reduced
GF Fund Management Co. Ltd.621$34.4K0.00%+78+14.4%Added
Quantbot Technologies LP559$31.0K0.00%+559New
Versant Capital Management, Inc454$25.2K0.00%00.0%Unchanged
GAMMA Investing LLC442$24.5K0.00%+58+15.1%Added
Spire Wealth Management400$22.2K0.00%+400New
Farther Finance Advisors, LLC384$21.8K0.00%00.0%Unchanged
Signaturefd, LLC366$20.3K0.00%+14+4.0%Added
Group One Trading, L.P.365$20.2K0.00%+365New
Pinnacle Wealth Planning Services, Inc.334$18.5K0.00%00.0%Unchanged
Natixis333$18.5K0.00%+333New
Rockefeller Capital Management L.P.326$18.1K0.00%+261+401.5%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.257$14.3K0.00%+19+8.0%Added
Meeder Asset Management Inc240$13.3K0.00%+240New
Quadrant Capital Group LLC177$9.82K0.00%+2+1.1%Added
Rothschild Investment LLC165$9.15K0.00%00.0%Unchanged
Allworth Financial LP154$8.54K0.00%+11+7.7%Added
Sterling Capital Management LLC118$6.54K0.00%+2+1.7%Added
The PNC Financial Services Group, Inc.109$6.04K0.00%+5+4.8%Added
Basecamp Wealth Advisors LLC90$4.99K0.00%−52−36.6%Reduced
UMA Financial Services, Inc.85$4.71K0.00%00.0%Unchanged
Wall Street Financial Group, Inc.75$4.16K0.00%+75New
Parallel Advisors, LLC66$3.66K0.00%+11+20.0%Added
Hollencrest Capital Management50$2.77K0.00%+50New
Massmutual Trust Co FSB46$2.55K0.00%+34+283.3%Added
Steward Partners Investment Advisory, LLC43$2.38K0.00%00.0%Unchanged
Assetmark, Inc36$2.00K0.00%00.0%Unchanged
Essential Partners LLC33$1.83K0.00%00.0%Unchanged
Parkside Financial Bank & Trust25$1.39K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.19$1.05K0.00%00.0%Unchanged
Root Financial Partners, LLC16$8870.00%+16New
Stone House Investment Management, LLC12$6660.00%−1−7.7%Reduced
MAI Capital Management11$6110.00%+1+10.0%Added
Fortitude Family Office, LLC8$4440.00%+8New