Security Snapshot

ANAPTYSBIO, INC - Common Stock, par value $0.001 per share (ANAB) Institutional Ownership

CUSIP: 032724106

13F Institutional Holders and Ownership History from Q1 2017 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

208

Shares (Excl. Options)

30,093,663

Price

$67.50

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+1,967,097
Value change
+$143,135,555
Number of holders
208
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
29,839,180
SEC-reported price per share
$54.91
Insider filing price
$54.91
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • ANAB - ANAPTYSBIO, INC - Common Stock, par value $0.001 per share is tracked under CUSIP 032724106.
  • 208 institutions reported positions in Q2 2026.
  • 8 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 205 to 208 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $1,550,503,238 to $2,031,212,920.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 208 institutions filings for Q2 2026.

Open SEC evidence

Security key

032724106

Latest holder period

Q2 2026

13F holders

208

13D/G owners

8

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
8
Security
ANAB
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 6.2% -28% $39,347,471 -$13,405,817 1,900,844 -25% BlackRock, Inc. 31 Mar 2025
Sirenia Capital Management LP 5% -24% $99,051,158 -$28,444,331 1,491,959 -22% Sirenia Capital Management LP 30 Jun 2026
GOLDMAN SACHS GROUP INC 4.5% -14% $38,314,646 -$10,329,933 1,251,295 -21% THE GOLDMAN SACHS GROUP, INC. 30 Sep 2025
MORGAN STANLEY 3.6% -45% $45,484,108 -$37,928,432 1,006,063 -45% Morgan Stanley 31 Dec 2025
First Light Asset Management, LLC 3.1% -57% $26,474,603 -$42,907,347 864,618 -62% Mathew P. Arens 30 Sep 2025
MILLENNIUM MANAGEMENT LLC 2.9% -44% $39,442,003 -$29,733,912 813,571 -43% Millennium Management LLC 31 Dec 2025
FMR LLC 0.9% -88% $5,091,861 -$33,068,368 254,212 -87% FMR LLC 30 May 2025
Point72 Asset Management, L.P. 0.2% -94% $3,137,339 -$131,220,291 55,303 -98% Point72 Asset Management, L.P. 31 Mar 2026

As of 30 Jun 2026, 208 institutional investors reported holding 30,093,663 shares of ANAPTYSBIO, INC - Common Stock, par value $0.001 per share (ANAB). This represents 101% of the company’s total 29,839,180 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
81%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
EcoR1 Capital, LLC 26% 7,880,094 0% 26% $531,906,345
BlackRock, Inc. 6.2% 1,844,049 +9.7% 0% $124,473,310
TANG CAPITAL MANAGEMENT LLC 4.5% 1,330,879 0% 4.1% $89,834,333
STATE STREET CORP 4.3% 1,286,194 +30% 0% $86,818,095
VANGUARD CAPITAL MANAGEMENT LLC 3% 906,233 +6.2% 0% $61,170,728
Affinity Asset Advisors, LLC 2.8% 826,109 -12% 2.7% $55,762,358
Sanofi 2.8% 821,917 0% 10% $55,479,398
MILLENNIUM MANAGEMENT LLC 2.7% 807,316 +70% 0.04% $54,493,830
Woodline Partners LP 2.4% 717,014 +108% 0.15% $48,398,445
683 Capital Management, LLC 2.2% 660,000 +5.6% 4.1% $44,550,001
GEODE CAPITAL MANAGEMENT, LLC 2.1% 637,873 +23% 0% $43,064,353
Palo Alto Investors LP 2% 603,489 -5.4% 5.6% $40,735,508
GOLDMAN SACHS GROUP INC 2% 584,070 +76% 0% $39,424,725
First Light Asset Management, LLC 2% 582,004 +2.9% 2.4% $39,285,270
D. E. Shaw & Co., Inc. 1.8% 539,666 -6.8% 0.02% $36,427,456
VANGUARD PORTFOLIO MANAGEMENT LLC 1.8% 527,858 +1.5% 0% $35,630,415
Apis Capital Advisors, LLC 1.7% 497,000 +109% 3.3% $33,547,500
Sofinnova Investments, Inc. 1.7% 493,536 +99% 1.8% $33,313,680
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1.6% 488,651 -0.7% 0.01% $32,983,943
Nuveen, LLC 1.4% 420,664 +33% 0.01% $28,394,821
BANK OF AMERICA CORP /DE/ 1.4% 417,812 -17% 0% $28,202,310
CITADEL ADVISORS LLC 1.3% 394,373 +69% 0.02% $26,620,178
FEDERATED HERMES, INC. 1.3% 391,667 +7.6% 0.04% $26,437,523
Squarepoint Ops LLC 1.1% 324,446 +21% 0.04% $21,900,105
TWO SIGMA INVESTMENTS, LP 0.88% 262,995 -43% 0.01% $17,752,163

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
38
Latest
Q2 2026
Rows shown
1-25 of 38
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 30,093,663 $2,031,212,920 +$143,135,555 $67.50 208
2026 Q1 28,230,614 $1,550,503,238 -$53,527,829 $55.46 205
2025 Q4 29,356,016 $1,422,989,715 -$87,271,462 $48.48 179
2025 Q3 31,623,561 $968,590,879 -$154,422,366 $30.62 164
2025 Q2 36,775,405 $816,417,703 -$61,528,593 $22.20 146
2025 Q1 39,955,702 $742,780,741 +$106,646,664 $18.59 150
2024 Q4 35,417,634 $468,934,603 -$87,874,690 $13.24 133
2024 Q3 33,628,905 $1,126,906,586 +$123,178,333 $33.50 158
2024 Q2 29,795,998 $746,647,480 +$18,365,650 $25.06 133
2024 Q1 29,220,936 $658,049,704 -$20,954,780 $22.52 132
2023 Q4 30,178,929 $646,434,520 +$661,774 $21.42 117
2023 Q3 30,319,401 $544,539,672 -$1,742,551 $17.96 116
2023 Q2 30,230,678 $614,916,059 -$16,322,967 $20.34 116
2023 Q1 31,038,362 $675,357,489 -$44,703,594 $21.76 112
2022 Q4 32,881,839 $1,018,995,107 -$10,549,644 $30.99 114
2022 Q3 32,565,742 $830,751,663 +$39,360,338 $25.51 109
2022 Q2 31,163,975 $632,623,400 +$28,483,649 $20.30 117
2022 Q1 29,681,010 $735,000,699 +$13,953,506 $24.74 124
2021 Q4 27,753,009 $964,436,533 +$8,862,117 $34.75 132
2021 Q3 27,612,274 $748,805,223 -$4,361,131 $27.12 123
2021 Q2 27,792,119 $720,641,941 -$34,119,008 $25.93 117
2021 Q1 29,170,513 $628,617,724 +$26,204,184 $21.55 116
2020 Q4 27,945,751 $600,836,464 -$16,682,226 $21.50 129
2020 Q3 29,118,815 $429,506,449 -$16,534,668 $14.75 127
2020 Q2 29,995,726 $670,116,259 -$17,219,808 $22.34 117
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