Starling Oncology, Inc.

STLN

Exchange: Nasdaq
Industry: Services-Offices & Clinics of Doctors of Medicine
SEC CIK: 0001799191

SEC filings (opens in a new tab)

In the last 90 days, Starling Oncology, Inc. insiders filed 3 open-market purchases and 2 sales; 119 institutions reported holding it in 13F filings for Q2 2026, worth $217.6M in total; no superinvestor holds it.

Other share classesDFPH STLNW

Q4 2025 vs. Q3 2025

How the institutions holding Starling Oncology, Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of STLN: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	108	2	117	+11
Shares	34.7M	188.7K	38.5M	+4.00M (+11.6%)
Value	$121.0M	$658.7K	$137.1M	+$16.8M (+13.9%)

2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (29)

Institutions that held Starling Oncology, Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to STLN in Q4 2025
Institution	Shares	Value	% of portfolio
GatePass Capital, LLC	360,000	$1.28M	0.66%
Susquehanna International Group, LLP	295,150	$1.05M	0.00%
T3 Companies, LLC	201,100	$715.9K	0.92%
Arrowstreet Capital, Limited Partnership	155,724	$554.4K	0.00%
SEI Investments Co	111,553	$397.1K	0.00%
Creative Planning	78,633	$279.9K	0.00%
Gsa Capital Partners LLP	70,654	$252.0K	0.02%
Point72 Asset Management, L.P.	69,275	$246.6K	0.00%
Group One Trading, L.P.	62,140	$221.2K	0.01%
Caption Management, LLC	50,100	$178.4K	0.01%
XTX Topco Ltd	46,522	$165.6K	0.00%
nVerses Capital, LLC	31,595	$112.5K	0.25%
Mangrove Partners	30,581	$108.9K	0.01%
Aquatic Capital Management LLC	29,588	$105.3K	0.00%
Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P.	29,534	$105.1K	0.01%
EntryPoint Capital, LLC	18,456	$65.7K	0.03%
Adviser Investments LLC	15,633	$55.7K	0.00%
Engineers Gate Manager LP	15,429	$54.9K	0.00%
R Squared Ltd	11,462	$40.8K	0.02%
Pekin Hardy Strauss, Inc.	10,000	$35.6K	0.00%
Kestra Advisory Services, LLC	8,680	$30.9K	0.00%
Simplex Trading, LLC	1,806	$6.43K	0.00%
Strive Financial Group ,LLC	1,584	$5.64K	0.00%
Bessemer Group Inc	1,024	$4.00K	0.00%
Signaturefd, LLC	186	$662	0.00%
GAMMA Investing LLC	160	$570	0.00%
Parallel Advisors, LLC	39	$139	0.00%
Northwestern Mutual Wealth Management Co	8	$28	0.00%
Rothschild Investment LLC	1	$4	0.00%

Sold out (18)

Institutions that held Starling Oncology, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of STLN in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Manatuck Hill Partners, LLC	629,800	$2.20M
EHP Funds Inc.	244,041	$851.7K
Nkcfo LLC	190,000	$663.0K
Panagora Asset Management Inc	126,985	$443.2K
Graham Capital Management, L.P.	72,408	$252.7K
Diametric Capital, LP	42,945	$149.9K
Quadrature Capital Ltd	40,273	$141.2K
Raymond James Financial Inc	35,748	$124.8K
O'Shaughnessy Asset Management, LLC	23,794	$83.0K
Verition Fund Management LLC	18,020	$62.9K
Citadel Advisors LLC	14,961	$52.2K
Sherbrooke Park Advisers LLC	14,656	$51.1K
Prelude Capital Management, LLC	11,880	$41.5K
FNY Investment Advisers, LLC	6,000	$20.0K
Quantbot Technologies LP	4,926	$17.2K
Wealthspire Advisors, LLC	3,169	$11.1K
C M Bidwell & Associates Ltd	265	$925
SRS Capital Advisors, Inc.	14	$49

Not filed for Q4 2025 yet (2)

Institutions that held Starling Oncology, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding STLN in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Cubist Systematic Strategies, LLC	185,160	$646.2K
Point72 Europe (London) LLP	3,572	$12.5K