Erasca Ownership | Who Owns Erasca?

Erasca Ownership Summary

Erasca is owned by 8.76% institutional investors, 10.70% insiders, and 80.54% retail investors. Frazier life sciences management is the largest institutional shareholder, holding 8.02% of ERAS shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.58% of its assets in Erasca shares.

ERAS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Erasca	8.76%	10.70%	80.54%
Sector	Healthcare Stocks	232.51%	10.72%	-143.23%
Industry	Biotech Stocks	384.56%	10.58%	-295.14%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Frazier life sciences management	22.73M	8.02%	$49.55M
T. rowe price investment management	20.23M	7.14%	$44.11M
Blackrock	10.61M	7.02%	$25.04M
Vr adviser	17.86M	6.30%	$38.93M
Blackrock funding, inc. /de	15.60M	5.50%	$58.02M
Logos global management lp	15.15M	5.35%	$33.03M
Suvretta capital management	14.50M	5.12%	$31.61M
Paradigm biocapital advisors lp	13.56M	4.79%	$29.56M
Vanguard group	12.81M	4.52%	$47.66M
Artal group	9.63M	4.42%	$22.73M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Arch venture management	11.06M	4.89%	$24.10M
5am venture management	5.41M	4.32%	$11.78M
Logos global management lp	15.15M	2.96%	$33.03M
Edbi pte	888.89K	2.36%	$2.23M
Vr adviser	17.86M	2.19%	$38.93M
Vivo capital	9.27M	1.63%	$20.22M
Frazier life sciences management	22.73M	1.48%	$49.55M
Paradigm biocapital advisors lp	13.56M	0.84%	$29.56M
Affinity asset advisors	4.29M	0.81%	$9.34M
Suvretta capital management	14.50M	0.81%	$31.61M

Top Buyers

Holder	Shares	% Assets	Change
Artal group	9.63M	0.58%	4.91M
Blackrock	10.61M	0.00%	3.63M
Vivo capital	9.27M	1.63%	2.52M
State street	6.17M	0.00%	2.15M
Millennium management	4.18M	0.01%	1.77M

Top Sellers

Holder	Shares	% Assets	Change
Armistice capital	-	-	-6.17M
Schroder investment management group	-	-	-1.93M
Sofinnova investments	-	-	-1.88M
Marshall wace, llp	526.01K	0.00%	-1.55M
Cvi	-	-	-1.46M

New Positions

Holder	Shares	% Assets	Change	Value
Profund advisors	50.60K	0.01%	50.60K	$188.25K
Bailard	35.24K	0.00%	35.24K	$131.09K
Engineers gate manager lp	34.52K	0.00%	34.52K	$75.26K
Y-intercept (hong kong)	24.31K	0.00%	24.31K	$90.44K
Ep wealth advisors	23.00K	0.00%	23.00K	$29.21K

Sold Out

Holder	Change
Clearstead advisors	-2.00
Nelson, van denburg & campbell wealth management group	-18.00
Amundi	-80.00
Corecap advisors	-100.00
Smartleaf asset management	-108.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	49	-66.21%	24,840,571	-88.44%	8	0.15%	24	-60.66%	12	-70.73%
Sep 30, 2025	44	-67.88%	17,749,176	-91.74%	6	0.11%	18	-78.05%	15	-55.88%
Jun 30, 2025	142	-5.96%	218,120,987	5.95%	76	145.73%	85	13.33%	36	-20.00%
Mar 31, 2025	153	4.08%	224,275,876	-2.85%	7	0.12%	76	-3.80%	45	18.42%
Dec 31, 2024	145	8.21%	211,469,201	-8.86%	74	1.11%	78	-	38	31.03%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	7.33M	2.58%	-162.46K
T. Rowe Price Small-Cap Value	5.94M	2.09%	-178.14K
iShares Russell 2000 ETF	4.23M	1.49%	-
T. Rowe Price U.S. SC Value Eq Tr-D	3.95M	1.39%	1.03M
T. Rowe Price US Small-Cap Core Equity	3.57M	1.26%	-6.46K
T. Rowe Price Small-Cap Stock	3.57M	1.26%	-2.88K
T. Rowe Price U.S. SC Value Eq Tr-Z	2.91M	1.03%	147.12K
Vanguard Institutional Extnd Mkt Idx Tr	2.29M	0.81%	-981.29K
SPDR® S&P Biotech ETF	2.23M	0.79%	-13.57K
T. Rowe Price Instl Small-Cap Stock	1.85M	0.65%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jan 07, 2026	Garner Ebun	General Counsel & Corp. Sec.	Sell	$670.81K
May 21, 2024	Casdin Alexander W.	-	Buy	$181.92K
Dec 06, 2023	Start Valerie Denise Harding	-	Buy	$18.48K
Dec 06, 2023	Lim Jonathan E	Chairman & CEO	Buy	$478.42K
Dec 05, 2023	Lim Jonathan E	Chairman & CEO	Buy	$1.22M

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	1
2025 Q4	-	-
2025 Q2	-	-
2025 Q1	-	-
2024 Q2	1	-

ERAS Ownership FAQ

Who Owns Erasca?

Erasca shareholders are primarily institutional investors at 8.76%, followed by 10.70% insiders and 80.54% retail investors. The average institutional ownership in Erasca's industry, Biotech Stocks , is 384.56%, which Erasca falls below.

Who owns the most shares of Erasca?

Erasca’s largest shareholders are Frazier life sciences management (22.73M shares, 8.02%), T. rowe price investment management (20.23M shares, 7.14%), and Blackrock (10.61M shares, 7.02%). Together, they hold 22.18% of Erasca’s total shares outstanding.

Does Blackrock own Erasca?

Yes, BlackRock owns 7.02% of Erasca, totaling 10.61M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 25.04M$. In the last quarter, BlackRock increased its holdings by 3.63M shares, a 52.00% change.

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

Arch venture management is Erasca’s biggest shareholder by percentage of total assets invested, with 4.89% of its assets in 11.06M Erasca shares, valued at 24.1M$.

Who is the top mutual fund holder of Erasca shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Erasca shares, with 2.58% of its total shares outstanding invested in 7.33M Erasca shares.

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