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STLN

Starling Oncology Institute, Inc. Common Stock
STLN

79 hedge funds and large institutions have $65.5M invested in Starling Oncology Institute, Inc. Common Stock in 2025 Q2 according to their latest regulatory filings, with 42 funds opening new positions, 24 increasing their positions, 4 reducing their positions, and 6 closing their positions.

New
Increased
Maintained
Reduced
Closed

600% more first-time investments, than exits

New positions opened: 42 | Existing positions closed: 6

500% more repeat investments, than reductions

Existing positions increased: 24 | Existing positions reduced: 4

237% more capital invested

Capital invested by funds: $19.4M → $65.5M (+$46M)

84% more funds holding

Funds holding: 43 → 79 (+36)

50% more funds holding in top 10

Funds holding in top 10: 2 → 3 (+1)

12.24% more ownership

Funds ownership: 22.51% → 34.75% (+12%)

Holders
79
Holders Change
+36
Holders Change %
+83.72%
% of All Funds
1.04%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
42
Increased
24
Reduced
4
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$7.61M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$6.33M
3
Marshall Wace
Marshall Wace
United Kingdom
+$3.69M
4
WC
Wexford Capital
Florida
+$2.8M
5
Geode Capital Management
Geode Capital Management
Massachusetts
+$2.23M

Top Sellers

Rank Fund Capital Flow
1
CI
Cincinnati Insurance
Ohio
-$1.41M
2
FL
FreeGulliver LLC
Louisiana
-$501K
3
MHP
Manatuck Hill Partners
Connecticut
-$251K
4
QFA
Quattro Financial Advisors
Texas
-$186K
5
GCP
GSA Capital Partners
United Kingdom
-$33K
Name Holding Trade Value Shares
Change 		Change in
Stake
Goldman Sachs
26
Goldman Sachs
New York
$317K +$98.7K +39,492 +34%
Charles Schwab
27
Charles Schwab
California
$302K +$369K +147,534 New
Verition Fund Management
28
Verition Fund Management
Connecticut
$287K +$349K +139,763 New
PAM
29
Panagora Asset Management
Massachusetts
$260K +$317K +126,985 New
CFG
30
Citizens Financial Group
Rhode Island
$244K +$141K +56,300 +90%
Susquehanna International Group
31
Susquehanna International Group
Pennsylvania
$233K +$228K +91,288 +408%
Barclays
32
Barclays
United Kingdom
$213K +$259K +103,670 New
SCM
33
Saba Capital Management
New York
$193K – – –
GCM
34
Graham Capital Management
Connecticut
$177K +$216K +86,206 New
RhumbLine Advisers
35
RhumbLine Advisers
Massachusetts
$175K +$213K +85,231 New
LF
36
Lee Financial
Texas
$167K – – –
HighTower Advisors
37
HighTower Advisors
Illinois
$167K – – –
QC
38
Quadrature Capital
United Kingdom
$164K +$199K +79,753 New
MLM
39
Mount Lucas Management
Pennsylvania
$158K +$193K +77,000 New
N
40
Nuveen
North Carolina
$157K +$192K +76,672 New
National Bank of Canada
41
National Bank of Canada
Quebec, Canada
$156K +$190K +76,013 New
FCG
42
Fielder Capital Group
Tennessee
$144K – – –
WP
43
WealthShield Partners
North Carolina
$144K – – –
KWA
44
Kingswood Wealth Advisors
California
$132K +$161K +64,400 New
XT
45
XTX Topco
Cayman Islands
$101K -$15.6K -6,255 -11%
New York State Common Retirement Fund
46
New York State Common Retirement Fund
New York
$91.6K +$112K +44,700 New
MIM
47
MetLife Investment Management
New Jersey
$81.9K +$99.9K +39,945 New
Invesco
48
Invesco
Georgia
$79.4K +$96.8K +38,708 New
AllianceBernstein
49
AllianceBernstein
Tennessee
$77.9K +$95K +38,000 New
CSS
50
Cubist Systematic Strategies
Connecticut
$71.1K +$86.7K +34,697 New
1
2
3 4

STLN Hedge Fund Activity: Q2 2025 in Review

79 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Starling Oncology Institute, Inc. Common Stock (STLN) for Q2 2025, worth a combined $65.5M — up 237% from $19.4M a quarter earlier.

Buyers outnumbered sellers: 42 funds opened new STLN positions and 6 closed out — a net gain of 36 holders — while 24 added to existing stakes and 4 trimmed.

The largest buyer was BlackRock, adding an estimated $7.61M. The largest seller was Cincinnati Insurance, exiting entirely with an estimated $1.41M sold.

  • 79 institutional investors held Starling Oncology Institute, Inc. Common Stock (STLN) as of Q2 2025, up from 43 in Q1 2025.
  • Funds reported $65.5M of Starling Oncology Institute, Inc. Common Stock stock for Q2 2025, up 237% quarter-over-quarter.
  • 42 funds opened new Starling Oncology Institute, Inc. Common Stock positions in Q2 2025 and 6 closed out, a net change of +36 holders.
  • The largest Starling Oncology Institute, Inc. Common Stock buyer in Q2 2025 was BlackRock, an estimated $7.61M added.
  • The largest Starling Oncology Institute, Inc. Common Stock seller in Q2 2025 was Cincinnati Insurance, an estimated $1.41M sold.

Based on aggregated 13F filings for Q2 2025.