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ANAB · Anaptysbio, Inc · Shareholders & Ownership

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$48.73 +0.63 (+1.31%) At close · Oct 23
Market Cap
$1.42B
Shares
29.10M
Volume · Oct 23 468.21K Avg daily vol (3M) 503.05K

Every disclosed holder of ANAB in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns ANAB

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 30,189,929 103.74%
Insiders (Forms 3, 4, 5) 980,337 3.37%
13D/G-only blocks 5,195,690 17.85%
Remaining 7,265,054 -24.97%
Registered funds (N-PORT, not summed) 6,777,646 23.29%

Shares outstanding: 29,100,902, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ANAB

# Holder Shares
1
EcoR1 Capital, LLC
13F CIK 1587114 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
7,880,094
1.1
EcoR1 Capital, LLC
Insider CIK 1587114 · Jan 2, 2025
Director, 10% Owner, issuer-wide, not summed
11,820,141
2
TANG CAPITAL MANAGEMENT, LLC
13G CIK 1191935 · Unknown · Dec 31, 2023
Rule 13d-1(c), passive investor
2,925,914
3
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,844,049
3.1
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
514,945
3.2
iShares Biotechnology ETF
Fund S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
193,528
3.3
iShares Russell 2000 Growth ETF
Fund S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
185,548
3.4
Master Small Cap Index Series
Fund S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
36,931
3.5
iShares Core S&P Total U.S. Stock Market ETF
Fund S000004317 · Registered fund · Jun 30, 2026
iShares Trust, not summed
29,157
4
Sirenia Capital Management LP
13G CIK 2115022 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution
1,491,959
5
TANG CAPITAL MANAGEMENT LLC
13F CIK 1232621 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,330,879
6
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,286,194
6.1
State Street(R) SPDR(R) S&P(R) Biotech ETF
Fund S000010018 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
786,627
6.2
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
6,614
6.3
State Street Total Return V.I.S. Fund
Fund S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
499
6.4
State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF
Fund S000036082 · Registered fund · Jun 30, 2026
SPDR INDEX SHARES FUNDS, not summed
356
6.5
State Street Balanced Index Fund
Fund S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
65
7
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
906,233
8
Affinity Asset Advisors, LLC
13F CIK 1773195 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
826,109
9
Sanofi
13F CIK 1121404 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
821,917
10
MILLENNIUM MANAGEMENT LLC
13F CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
807,316
11
Faga Daniel
Insider CIK 1673528 · Mar 27, 2026
Director, President, CEO, issuer-wide
743,948
12
Woodline Partners LP
13F CIK 1784547 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
717,014
13
James N. Topper
13G CIK 1863769 · Unknown · Jan 31, 2025
Rule 13d-1(c), passive investor
694,862
14
683 Capital Management, LLC
13F CIK 1404574 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
660,000
15
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
648,146
16
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
637,873
17
Palo Alto Investors LP
13F CIK 1306923 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
603,489
18
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
584,070
18.1
Goldman Sachs Small Cap Equity Insights Fund
Fund S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
46,070
18.2
Goldman Sachs Small Cap Growth Insights Fund
Fund S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
19,276
18.3
Goldman Sachs Small Cap Value Insights Fund
Fund S000014929 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
14,409
18.4
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
7,749
18.5
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
2,737
19
First Light Asset Management, LLC
13F CIK 1600004 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
582,004
20
D. E. Shaw & Co., Inc.
13F CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
539,666
21
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
527,858
22
Apis Capital Advisors, LLC
13F CIK 1386892 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
497,000
23
Sofinnova Investments, Inc.
13F CIK 1631134 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
493,536
24
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
488,651
25
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
420,664
25.1
Nuveen Quant Small Cap Equity Fund
Fund S000005386 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
263,840
25.2
College Retirement Equities Fund - Total Global Stock Account
Fund S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
43,899
25.3
Nuveen Quant Small/Mid Cap Equity Fund
Fund S000054623 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
28,500
25.4
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
26,172
25.5
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
15,596
26
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
417,812
27
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
394,373
28
FEDERATED HERMES, INC.
13F CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
391,667
29
Squarepoint Ops LLC
13F CIK 1642575 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
324,446
30
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
262,995
31
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
258,989
31.1
First Trust Small Cap Growth AlphaDEX Fund
Fund S000031806 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
130,011
31.2
First Trust Small Cap Core AlphaDEX Fund
Fund S000017339 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
64,617
31.3
First Trust Multi Cap Growth AlphaDEX Fund
Fund S000017343 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
11,777
31.4
First Trust Active Factor Small Cap ETF
Fund S000066790 · Registered fund · Aug 31, 2026
First Trust Exchange-Traded Fund VIII, not summed
8,486
32
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
257,091
33
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
240,511
33.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
215,873
33.2
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
101,648
33.3
Fidelity SAI Small-Mid Cap Momentum Index Fund
Fund S000050321 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
60,059
33.4
Fidelity Small-Mid Multifactor ETF
Fund S000064786 · Registered fund · Jul 31, 2026
Fidelity Covington Trust, not summed
44,946
33.5
Fidelity Total Market Index Fund
Fund S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
37,064
34
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
237,032
35
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
228,777
36
HSBC HOLDINGS PLC
13F CIK 873630 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
216,949
37
Federated Hermes Kaufmann Small Cap Fund
Fund S000009730 · Registered fund · Jul 31, 2026
Federated Hermes Equity Funds, not summed
210,000
38
Empowered Funds, LLC
13F CIK 1592828 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
206,010
39
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
202,767
39.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
9,980
39.2
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
7,064
40
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
202,305
40.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
94,549
40.2
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
47,930
40.3
Schwab Small-Cap Equity Fund
Fund S000005516 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
18,739
40.4
Schwab Health Care Fund
Fund S000005519 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
11,939
40.5
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
11,800
41
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
202,056
41.1
Invesco Biotechnology & Genome ETF
Fund S000003026 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
121,247
41.2
Invesco BuyBack AchieversTM ETF
Fund S000013111 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
31,971
41.3
Invesco Dorsey Wright SmallCap Momentum ETF
Fund S000037586 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
21,153
41.4
Invesco RAFI US 1500 Small-Mid ETF
Fund S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
20,920
41.5
Invesco Russell 2000 Dynamic Multifactor ETF
Fund S000064608 · Registered fund · May 31, 2026
Invesco Exchange-Traded Self-Indexed Fund Trust, not summed
15,256
42
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
185,444
42.1
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
70,627
42.2
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
64,608
42.3
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
23,992
42.4
Dimensional U.S. Equity Market ETF
Fund S000070902 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
6,052
43
Greenhaven Road Investment Management, L.P.
13F CIK 1741129 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
171,059
44
VICTORY CAPITAL MANAGEMENT INC
13F CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
169,227
44.1
Victory Science & Technology Fund
Fund S000012911 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
187,893
44.2
VictoryShares US Small Mid Cap Value Momentum ETF
Fund S000065161 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
50,185
44.3
Victory RS Science & Technology Fund
Fund S000053582 · Registered fund · Jun 30, 2026
Victory Portfolios, not summed
48,060
44.4
Victory RS Small Cap Growth Fund
Fund S000053581 · Registered fund · Jun 30, 2026
Victory Portfolios, not summed
35,700
44.5
Victory Small Cap Stock Fund
Fund S000012914 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
31,643
45
MACKENZIE FINANCIAL CORP
13F CIK 919859 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
150,979
46
Burney U.S. Equity Select ETF
Fund S000094691 · Registered fund · Jul 31, 2026
EA Series Trust, not summed
148,943
47
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
146,832
48
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
146,724
49
Connor, Clark & Lunn Investment Management Ltd.
13F CIK 1596800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
141,026
50
VANGUARD STRATEGIC EQUITY FUND
Fund S000002593 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
131,265

34 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 319 holders

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Key facts CIK 1370053 CUSIP 032724106 13F (30d) 19 filings 19 filers Visit website Investor relations