AnaptysBio Ownership | Who Owns AnaptysBio?

Overview Forecast RevenueFinancials Chart

AnaptysBio Ownership Summary

AnaptysBio is owned by 117.13% institutional investors, 4.44% insiders. Ecor1 capital is the largest institutional shareholder, holding 27.25% of ANAB shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.39% of its assets in AnaptysBio shares.

ANAB Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	AnaptysBio	117.13%	4.44%	-21.57%
Sector	Healthcare Stocks	57.39%	9.93%	32.68%
Industry	Biotech Stocks	68.48%	9.65%	21.87%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Ecor1 capital	7.87M	27.25%	$104.24M
Fmr	3.03M	10.49%	$40.12M
Blackrock funding, inc. /de	2.55M	8.82%	$33.74M
Frazier life sciences management	2.17M	7.92%	$54.27M
Blackrock	1.77M	6.47%	$44.35M
Vanguard group	1.84M	6.38%	$24.41M
Fairmount funds management	1.82M	6.29%	$24.05M
Boxer capital	1.30M	4.75%	$32.58M
Tang capital management	1.33M	4.61%	$17.62M
State street	1.29M	4.45%	$17.02M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Sanofi	821.92K	6.24%	$10.88M
Ecor1 capital	7.87M	3.94%	$104.24M
Frazier life sciences management	2.17M	2.54%	$54.27M
Fairmount funds management	1.82M	2.39%	$24.05M
Palo alto investors lp	843.97K	1.73%	$11.17M
Boxer capital	1.30M	1.72%	$32.58M
Tang capital management	1.33M	1.17%	$17.62M
5am venture management	357.73K	1.13%	$4.74M
First light asset management	868.88K	1.10%	$11.50M
Camber capital management lp	1.25M	0.38%	$16.55M

Top Buyers

Holder	Shares	% Assets	Change
Fairmount funds management	1.82M	2.39%	1.82M
Frazier life sciences management	2.17M	2.54%	1.27M
Camber capital management lp	1.25M	0.38%	1.25M
Sanofi	821.92K	6.24%	821.92K
Soleus capital management	414.00K	0.34%	414.00K

Top Sellers

Holder	Shares	% Assets	Change
Mangrove partners	-	-	-689.52K
Morgan stanley	91.77K	0.00%	-544.35K
Deep track capital, lp	-	-	-529.45K
Cormorant asset management, lp	-	-	-342.46K
Blackstone	-	-	-328.72K

New Positions

Holder	Shares	% Assets	Change	Value
Fairmount funds management	1.82M	2.39%	1.82M	$24.05M
Sanofi	821.92K	6.24%	821.92K	$10.88M
Soleus capital management	414.00K	0.34%	414.00K	$5.48M
Lmr partners llp	140.72K	0.02%	140.72K	$1.86M
Sofinnova investments	132.93K	0.13%	132.93K	$1.76M

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-4.00
Northwestern mutual wealth management	-7.00
Riverview trust	-13.00
True wealth design	-15.00
Westend capital management	-29.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2024	153	-12.07%	33,843,782	0.64%	117	0.86%	80	-21.57%	34	3.03%
Sep 30, 2024	173	26.28%	33,610,268	12.80%	116	0.98%	102	52.24%	32	-28.89%
Jun 30, 2024	137	-1.44%	29,796,164	1.98%	108	0.92%	67	3.08%	45	12.50%
Mar 31, 2024	139	12.10%	29,216,786	-3.19%	109	0.87%	65	41.30%	40	-9.09%
Dec 31, 2023	124	1.64%	30,178,965	-0.47%	112	0.86%	46	-4.17%	44	15.79%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	733.95K	2.39%	129.10K
Vanguard Total Stock Mkt Idx Inv	668.95K	2.18%	-
Fidelity Small Cap Growth	625.15K	2.04%	-
iShares Russell 2000 ETF	577.79K	1.88%	-5.00K
US Small-Cap Growth II Equity Comp	545.28K	1.78%	-7.53K
T. Rowe Price New Horizons	545.28K	1.78%	-7.37K
FIAM Small Cap Core CIT Cl B	471.10K	1.54%	-
FIAM Small Cap Core Composite	471.10K	1.54%	-76.70K
Fidelity Advisor Biotechnology I	423.10K	1.38%	-
SPDR® S&P Biotech ETF	381.98K	1.25%	-4.10K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 30, 2024	EcoR1 Capital, LLC		Buy	$842.06K
Dec 31, 2024	EcoR1 Capital, LLC		Buy	$171.51K
Jan 02, 2025	EcoR1 Capital, LLC		Buy	$86.07K
Nov 29, 2024	RENTON HOLLINGS	-	Sell	$250.00K
Sep 23, 2024	Lizzul Paul F.	Chief Medical Officer	Sell	$58.01K

Insider Transactions Trends

Date	Buy	Sell
2025 Q1	1	-
2024 Q4	2	1
2024 Q3	1	11
2024 Q2	-	3
2024 Q1	-	8

ANAB Ownership FAQ

Who Owns AnaptysBio?

AnaptysBio shareholders are primarily institutional investors at 117.13%, followed by 4.44% insiders and -21.57% retail investors. The average institutional ownership in AnaptysBio's industry, Biotech Stocks , is 68.48%, which AnaptysBio exceeds.

Who owns the most shares of AnaptysBio?

AnaptysBio’s largest shareholders are Ecor1 capital (7.87M shares, 27.25%), Fmr (3.03M shares, 10.49%), and Blackrock funding, inc. /de (2.55M shares, 8.82%). Together, they hold 46.56% of AnaptysBio’s total shares outstanding.

Does Blackrock own AnaptysBio?

Yes, BlackRock owns 6.47% of AnaptysBio, totaling 1.77M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 44.35M$. In the last quarter, BlackRock increased its holdings by 49.89K shares, a 2.90% change.

Who is AnaptysBio’s biggest shareholder by percentage of total assets invested?

Sanofi is AnaptysBio’s biggest shareholder by percentage of total assets invested, with 6.24% of its assets in 821.92K AnaptysBio shares, valued at 10.88M$.

Who is the top mutual fund holder of AnaptysBio shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of AnaptysBio shares, with 2.39% of its total shares outstanding invested in 733.95K AnaptysBio shares.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools