ATRIUM THERAPEUTICS INC

$RNA
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Smart money positioned

9 of the Top-200 alpha managers hold $RNA as of the latest 13F snapshot.

13F holders
139
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

9 holders · Q1 2026

$RNA is held by 9 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.17%, with an average of 0.05% of portfolio. Largest holder: Quarry LP at 0.17%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

01
Quarry LP
0.17% NEW
α +10.6pts
02
Bellevue Group AG
0.08% held
α +12.2pts
03
ADAR1 Capital Management, LLC
0.05% held
α +74.0pts
04
Caption Management, LLC
0.02% held
α +15.5pts
05
Diadema Partners LP
0.01% held
α +13.2pts

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 139 · Source: 13F-HR
01
Brightline Capital Management, LLC
—
2,037,600 sh
02
Norman Fields, Gottscho Capital Management, LLC
0.38% of portfolio
607,552 sh
03
Ninety One UK Ltd
0.04% of portfolio
602,649 sh
04
Oakworth Capital, Inc.
0.13% of portfolio
551,391 sh
05
Ferguson Wellman Capital Management, Inc.
0.03% of portfolio
349,360 sh
06
Laurion Capital Management LP
0.21% of portfolio
300,000 sh
07
Rokos Capital Management LLP
0.08% of portfolio
263,096 sh
08
Axa S.a.
—
257,086 sh
09
Graybill Wealth Management, Ltd.
0.05% of portfolio
240,701 sh
10
UNIVEST FINANCIAL Corp
0.05% of portfolio
235,637 sh
See all 139 13F holders · Pro →

Insider activity · last 90 days

50 transactions · 11 filers
21 Jan 2026
Hughes Steven George —
▼ SOLD
2,878
$72.45
S
21 Jan 2026
Hughes Steven George —
▼ SOLD
2,017
$72.45
S
21 Jan 2026
Boyce Sarah —
▼ SOLD
7,993
$72.45
S
21 Jan 2026
Boyce Sarah —
▼ SOLD
6,394
$72.45
S
21 Jan 2026
Flanagan W. Michael —
▼ SOLD
2,558
$72.45
S
21 Jan 2026
Flanagan W. Michael —
▼ SOLD
3,976
$72.45
S
21 Jan 2026
McCarthy Teresa —
▼ SOLD
1,453
$72.45
S
21 Jan 2026
McCarthy Teresa —
▼ SOLD
1,476
$72.45
S
21 Jan 2026
MacLean Michael F —
▼ SOLD
2,735
$72.45
S
21 Jan 2026
MacLean Michael F —
▼ SOLD
1,807
$72.45
S
21 Jan 2026
Levin Arthur A —
▼ SOLD
1,758
$72.45
S
07 Jan 2026
Boyce Sarah —
▼ SOLD
8,576
$72.23
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $RNA in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 08:59 UTC.