$STLN

$6.59 +$0.30 (4.77%) Close

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

Ownership

13F as of Q2 2026 · 101.9M shares outstanding

Who owns STLN?

By type of holder

Institutions 39.3% Insiders 46.1% Everyone else 14.6%

Concentration Top 10 holders own 48.9%

Chernett Jorey 10.5% · Barasch Richard A 7.0%

Institutional ownership

39.3%

+1.3 pts vs last qtr

Institutional holders

119

+4 vs last qtr

Net shares bought

+1.3M

by institutions in Q2 2026

New / sold out

26 / 22

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Nuveen, LLC +1.3M
Marshall Wace, LLP +880.2K

Biggest sellers in Q2 2026

Kanen Wealth Management LLC SOLD OUT −2.8M
Balyasny Asset Management L.P. SOLD OUT −1.8M

Who is planning to sell?

Notices of proposed sale, last 12 months

$827K

5 notices from 4 people

Shares covered

206.0K

0.20% of the company

Arranged in advance

70%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Mohit Kaushal Director 10b5-1 $316K
Yale Podnos Officer 10b5-1 $261K

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

+56.3%

+9.34% a year

Each share's claim on the business

−36.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$10M vs $85.9M

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+ years9% 3–5 years39% 1–3 years35% Under 1 year17%

Quarterly turnover

22.9%

of institutional shares changed hands

Top 10 managers, median time held

4 years

Super Investors

Investment managers reporting STLN on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	4.7M	4.66%	+333.2K (+7.5%)	2022	0.0%
Shares held by quarter Peak holding4.7M (Q2'26) Change over 8 quarters+4.5M Share of the company4.660% BlackRock, Inc.'s full portfolio →
VC Vanguard Capital Management LLC	3.3M	3.20%	−211.3K (−6.1%)	2021	0.0%
Shares held by quarter Peak holding3.5M (Q1'26) Change over 8 quarters+3.3M Share of the company3.200% Vanguard Capital Management LLC's full portfolio →

BlackRock, Inc.

4.7M

% of company

4.66%

Change vs last qtr

+333.2K (+7.5%)

Held since

2022

Vanguard Capital Management LLC

3.3M

% of company

3.20%

Change vs last qtr

−211.3K (−6.1%)

Held since

2021

28 more super investors behind a free account

See every manager holding Starling Oncology, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting STLN on Form N-PORT; together they hold 12.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$13M	2.4M	2.35%	0.00%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$10.9M	2.0M	1.96%	0.01%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$13M

% of company

2.35%

% of the fund

0.00%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$10.9M

% of company

1.96%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Starling Oncology, Inc. 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
CJ Chernett Jorey Insider	10.7M	10.46%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company10.460% Chernett Jorey's insider activity →
BR Barasch Richard A Insider	7.1M	6.99%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company6.990% Barasch Richard A's insider activity →

Chernett Jorey

Insider

10.7M

% of company

10.46%

Change vs last qtr

—

Held since

—

Barasch Richard A

Insider

7.1M

% of company

6.99%

Change vs last qtr

—

Held since

—

18 more holders behind a free account

See every insider and 5%+ holder of Starling Oncology, Inc..

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