Company · Ownership research

ANAPTYSBIO, INC ANAB

CIK 0001370053 · CUSIP 032724106

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 032724106 (ANAB), not CUSIP 032724906 (ANAB), CUSIP 032724956 (ANAB), and does not merge CUSIPs.

This page lists the top 20 of 137 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	EcoR1 Capital, LLC CIK 1587114 · View history	$104.24M 7,873,448 shares	4.17%	+78.45K(+1.00%)Added	SEC filing ↗ Feb 14, 2025	▾
02	FMR LLC CIK 315066 · View history	$40.12M 3,030,236 shares	0.00%	-278.94K(-8.40%)Reduced	SEC filing ↗ Feb 13, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$33.74M 2,548,468 shares	0.00%	+368.28K(+16.90%)Added	SEC filing ↗ Feb 7, 2025	▾
04	VANGUARD GROUP INC CIK 102909 · View history	$24.41M 1,843,740 shares	0.00%	+143.58K(+8.40%)Added	SEC filing ↗ Feb 11, 2025	▾
05	Fairmount Funds Management LLC CIK 1802528 · View history	$24.05M 1,816,466 shares	2.39%	+1.82MNew	SEC filing ↗ Feb 14, 2025	▾
06	Frazier Life Sciences Management, L.P. CIK 1892134 · View history	$20.84M 1,573,719 shares	0.86%	-635.47K(-28.80%)Reduced	SEC filing ↗ Feb 18, 2025	▾
07	TANG CAPITAL MANAGEMENT LLC CIK 1232621 · View history	$17.62M 1,330,879 shares	1.17%	0(0.00%)Unchanged	SEC filing ↗ Feb 14, 2025	▾
08	Boxer Capital Management, LLC CIK 2018299 · View history	$17.21M 1,300,000 shares	1.47%	—	SEC filing ↗ Feb 14, 2025	▾
09	STATE STREET CORP CIK 93751 · View history	$17.02M 1,285,755 shares	0.00%	+379.57K(+41.90%)Added	SEC filing ↗ Feb 14, 2025	▾
10	Camber Capital Management LP CIK 1444043 · View history	$16.55M 1,250,000 shares	0.65%	+1.25MNew	SEC filing ↗ Feb 14, 2025	▾
11	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$12.25M 925,007 shares	0.00%	+1.89K(+0.20%)Added	SEC filing ↗ Feb 14, 2025	▾
12	First Light Asset Management, LLC CIK 1600004 · View history	$11.50M 868,882 shares	1.10%	-79.25K(-8.40%)Reduced	SEC filing ↗ Feb 14, 2025	▾
13	Palo Alto Investors LP CIK 1306923 · View history	$11.17M 843,971 shares	1.73%	0(0.00%)Unchanged	SEC filing ↗ Feb 14, 2025	▾
14	Sanofi CIK 1121404 · View history	$10.88M 821,917 shares	6.24%	—	SEC filing ↗ Feb 14, 2025	▾
15	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$6.44M 486,597 shares	0.00%	+21.20K(+4.60%)Added	SEC filing ↗ Feb 12, 2025	▾
16	Woodline Partners LP CIK 1784547 · View history	$6.42M 485,073 shares	0.04%	+25.09K(+5.50%)Added	SEC filing ↗ Feb 14, 2025	▾
17	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$5.55M 419,106 shares	0.00%	+68.74K(+19.60%)Added	SEC filing ↗ Feb 11, 2025	▾
18	Soleus Capital Management, L.P. CIK 1802630 · View history	$5.48M 414,000 shares	0.41%	+414.00KNew	SEC filing ↗ Feb 14, 2025	▾
19	5AM Venture Management, LLC CIK 1799883 · View history	$4.74M 357,733 shares	1.13%	0(0.00%)Unchanged	SEC filing ↗ Feb 14, 2025	▾
20	FRANKLIN RESOURCES INC CIK 38777 · View history	$4.69M 354,370 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 12, 2025	▾

Showing 20 / 137 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

137

Cancelled or null records excluded

Disclosed shares

35,417,710

Not deduplicated across managers

Disclosed value

$468.94M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

ANAPTYSBIO, INC · Q4 2024

Explore all 137 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.