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Starling Oncology, Inc.

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

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 classesDFPHSTLNW

13F holders, Q1 2023

Institutional positions in Starling Oncology, Inc. as of Mar 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
39
−1 vs. Q4 2022
Shares held
22.0M
−1.57M (−6.7%) vs. Q4 2022
Total value
$14.9M
−$23.9M (−61.7%) vs. Q4 2022
New holders
6
17 more added
Sold out
7
9 more reduced

Compare with Q4 2022: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting STLN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2023: 39 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 1 institutionQ4 2021: 21 institutionsQ1 2022: 29 institutionsQ2 2022: 36 institutionsQ3 2022: 39 institutionsQ4 2022: 40 institutionsQ1 2023: 39 institutionsQ2 2023: 38 institutionsQ3 2023: 36 institutionsQ4 2023: 45 institutionsQ1 2024: 47 institutionsQ2 2024: 39 institutionsQ3 2024: 34 institutionsQ4 2024: 31 institutionsQ1 2025: 43 institutionsQ2 2025: 79 institutionsQ3 2025: 108 institutionsQ4 2025: 117 institutionsQ1 2026: 115 institutionsQ2 2026: 119 institutions
Value heldQ1 2023: $14.9M
Q1 2021: $0Q2 2021: $0Q3 2021: $2.50MQ4 2021: $199.9MQ1 2022: $159.0MQ2 2022: $110.9MQ3 2022: $108.4MQ4 2022: $38.7MQ1 2023: $14.9MQ2 2023: $7.66MQ3 2023: $21.2MQ4 2023: $37.6MQ1 2024: $27.2MQ2 2024: $8.60MQ3 2024: $6.73MQ4 2024: $4.61MQ1 2025: $19.4MQ2 2025: $65.5MQ3 2025: $121.0MQ4 2025: $137.1MQ1 2026: $118.9MQ2 2026: $217.6M
Institutions holding STLN and their total value by quarter
QuarterHoldersValue
Q2 2026119$217.6M
Q1 2026115$118.9M
Q4 2025117$137.1M
Q3 2025108$121.0M
Q2 202579$65.5M
Q1 202543$19.4M
Q4 202431$4.61M
Q3 202434$6.73M
Q2 202439$8.60M
Q1 202447$27.2M
Q4 202345$37.6M
Q3 202336$21.2M
Q2 202338$7.66M
Q1 202339$14.9M
Q4 202240$38.7M
Q3 202239$108.4M
Q2 202236$110.9M
Q1 202229$159.0M
Q4 202121$199.9M
Q3 20211$2.50M
Q2 20210$0
Q1 20210$0

Institutions, Q1 2023

Shares, value and share of portfolio for each institution holding Starling Oncology, Inc.; share changes are against Q4 2022.

Institutions holding STLN in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
FMR LLC12,000,000$8.13M0.00%−1,9820.0%Reduced
Deerfield Management Company, L.P. (Series C)3,360,052$2.28M0.05%00.0%Unchanged
Vanguard Group Inc1,943,543$1.32M0.00%+10,937+0.6%Added
BlackRock Inc.923,917$626.3K0.00%−677,367−42.3%Reduced
Hongkou Capital LP810,145$549.2K1.80%+292,666+56.6%Added
Geode Capital Management, LLC532,067$360.7K0.00%+2,447+0.5%Added
State Street Corp419,621$284.5K0.00%+644+0.2%Added
Redmile Group, LLC318,082$215.6K0.01%−1,265,076−79.9%Reduced
Prosight Management, LP281,902$191.1K0.09%+6,341+2.3%Added
Northern Trust Corp262,378$177.9K0.00%+4,983+1.9%Added
Saba Capital Management, L.P.174,513$118.3K0.00%00.0%Unchanged
Renaissance Technologies LLC132,500$90.0K0.00%+132,500New
Josh Arnold Investment Consultant, LLC116,843$79.0K0.09%+12,443+11.9%Added
Bank of New York Mellon Corp93,656$63.5K0.00%−2,270−2.4%Reduced
Charles Schwab Investment Management Inc87,594$59.4K0.00%00.0%Unchanged
Jane Street Group, LLC47,127$31.9K0.00%+47,127New
Susquehanna International Group, LLP44,019$29.8K0.00%+44,019New
Two Sigma Investments, LP42,775$29.0K0.00%−7,717−15.3%Reduced
Rhumbline Advisers38,600$26.0K0.00%+1,818+4.9%Added
Allspring Global Investments Holdings, LLC35,744$24.2K0.00%+25,059+234.5%Added
JPMorgan Chase & Co27,539$19.0K0.00%+7,801+39.5%Added
Bank of America Corp24,612$16.7K0.00%−7,383−23.1%Reduced
Deutsche Bank AG20,943$14.2K0.00%+5,571+36.2%Added
Barclays PLC19,840$13.4K0.00%+10,497+112.4%Added
First Republic Investment Management, Inc.18,300$12.4K0.00%+18,300New
Morgan Stanley18,006$12.2K0.00%−408−2.2%Reduced
American International Group, Inc.17,324$11.7K0.00%+865+5.3%Added
Tower Research Capital LLC (TRC)14,681$10.0K0.00%+7,660+109.1%Added
SG Americas Securities, LLC14,740$10.0K0.00%+14,740New
California State Teachers Retirement System13,345$9.05K0.00%−546−3.9%Reduced
UBS Group AG11,538$7.82K0.00%+5,377+87.3%Added
Invesco Ltd.11,398$7.73K0.00%+241+2.2%Added
New York State Common Retirement Fund11,109$7.53K0.00%00.0%Unchanged
Wells Fargo & Company6,858$4.65K0.00%+6,858New
Amalgamated Bank5,104$3.00K0.00%+241+5.0%Added
Legal & General Group Plc4,141$2.81K0.00%00.0%Unchanged
Royal Bank of Canada2,009$1.00K0.00%−3,969−66.4%Reduced
Ameritas Investment Partners, Inc.1,409$9550.00%00.0%Unchanged
Nuveen Asset Management, LLC52,343––00.0%Unchanged
Jefferies Financial Group Inc.0$00.00%−192,452−100.0%Sold out
Alpine Global Management, LLC0$00.00%−46,326−100.0%Sold out
CI Private Wealth, LLC0$00.00%−12,500−100.0%Sold out
Federated Hermes, Inc.0$00.00%−6,697−100.0%Sold out
Citigroup Inc0$00.00%−235−100.0%Sold out
Credit Suisse AG0$00.00%−1−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−13−100.0%Sold out