$SRRK

$42.49 +$0.78 (1.87%) Close

$SRRK Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 121.8M shares outstanding

Who owns SRRK?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 66.9%

FMR LLC 14.8% · Siren, L.L.C. 7.9%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

301

+29 vs last qtr

Net shares bought

+5.7M

by institutions in Q2 2026

New / sold out

56 / 27

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Norges Bank NEW +2.8M
Massachusetts Financial Services Co /ma/ NEW +2.6M

Biggest sellers in Q2 2026

Redmile Group, LLC −4.8M
Janus Henderson Group PLC SOLD OUT −2.2M

Who is planning to sell?

Notices of proposed sale, last 12 months

$10.4M

12 notices from 6 people

Shares covered

227.2K

0.19% of the company

Arranged in advance

100%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Mohammed Qatanani Officer 10b5-1 $9.34M
Katie Peng Director 10b5-1 $393K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2020–FY2025

+273.2%

+30.13% a year

Each share's claim on the business

−73.2%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $201M

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years46% 3–5 years9% 1–3 years29% Under 1 year16%

Quarterly turnover

16.3%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting SRRK on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
F FMR LLC	18.0M	14.78%	+752.1K (+4.4%)	≤2021	0.0%
Shares held by quarter Peak holding18.0M (Q2'26) Change over 8 quarters+7.8M Share of the company14.780% FMR LLC's full portfolio →
SL Siren, L.L.C.	9.6M	7.86%	−1.3M (−11.5%)	2024	10.7%
Shares held by quarter Peak holding11.3M (Q3'24) Change over 8 quarters−1.7M Share of the company7.860% Siren, L.L.C.'s full portfolio →

FMR LLC

18.0M

% of company

14.78%

Change vs last qtr

+752.1K (+4.4%)

Held since

≤2021

Siren, L.L.C.

9.6M

% of company

7.86%

Change vs last qtr

−1.3M (−11.5%)

Held since

2024

28 more super investors behind a free account

See every manager holding Scholar Rock Holding Corporation, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting SRRK on Form N-PORT; together they hold 44.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FG Fidelity Growth Company Fund Fidelity Mt. Vernon Street Trust	$258M	4.5M	3.72%	0.26%	August 31, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$189M	3.4M	2.81%	0.01%	June 30, 2026

Fidelity Growth Company Fund

Fidelity Mt. Vernon Street Trust

Position value

$258M

% of company

3.72%

% of the fund

0.26%

As of

August 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$189M

% of company

2.81%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Scholar Rock Holding Corporation and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
SA Srinivas Akkaraju 5%+ holder 13D · 7.2%	7.0M	5.74%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company5.740% Disclosed stake13D · 7.2% View the 13D/G filing →
SB Samsara BioCapital, L.P. 5%+ holder 13D · 6.6%	6.4M	5.23%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company5.230% Disclosed stake13D · 6.6% View the 13D/G filing →

Srinivas Akkaraju

5%+ holder13D · 7.2%

7.0M

% of company

5.74%

Change vs last qtr

—

Held since

—

Samsara BioCapital, L.P.

5%+ holder13D · 6.6%

6.4M

% of company

5.23%

Change vs last qtr

—

Held since

—

21 more holders behind a free account

See every insider and 5%+ holder of Scholar Rock Holding Corporation.

Comments