RNA

Atrium Therapeutics Inc
Health CareUSCUSIP 04965N104◍ Confluence graph
Tracked 13F Holders
155
13F Value (tracked)
$191.9M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)53 adding · 2 trimming
Insider net (180d)$0

Who owns RNA?

155 tracked 13F filers

155 tracked 13F filers disclose a position in RNA as of the latest SEC 13F filings, a combined $191.9M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
1 source-reported value row is withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1PRICE T ROWE ASSOCIATES INC /MD/
$20.8M
1.6M
New
+1.6M sh
Q1 2026
2BlackRock, Inc.
$16.1M
1.2M
New
+1.2M sh
Q1 2026
3RA CAPITAL MANAGEMENT, L.P.
$11.6M
864K
New
+864K sh
Q1 2026
4CRCM LP
$8.6M
642K
New
+642K sh
Q2 2026
5VANGUARD CAPITAL MANAGEMENT LLC
$8.4M
627K
First observed position
No prior filed position
Q1 2026
6TIG Advisors, LLC
$8.1M
608K
New
+608K sh
Q1 2026
7Pentwater Capital Management LP
$8.1M
603K
New
+603K sh
Q1 2026
8Sessa Capital IM, L.P.
$7.4M
551K
New
+551K sh
Q1 2026
9GEODE CAPITAL MANAGEMENT, LLC
$5.2M
387K
+21%
Added · +67K sh
Q2 2026
10GOLDMAN SACHS GROUP INC
$4.7M
350K
New
+350K sh
Q1 2026
11FARALLON CAPITAL MANAGEMENT LLC
$4.7M
349K
New
+349K sh
Q1 2026
12VANGUARD PORTFOLIO MANAGEMENT LLC
$4.6M
344K
First observed position
No prior filed position
Q1 2026
13683 Capital Management, LLC
$4.0M
300K
Held
Q2 2026
14STATE STREET CORP
$3.7M
272K
+5.7%
Added · +15K sh
Q2 2026
15CANTOR FITZGERALD, L. P.
$3.2M
236K
New
+236K sh
Q1 2026
16BALYASNY ASSET MANAGEMENT L.P.
$3.1M
235K
New
+235K sh
Q1 2026
17Squarepoint Ops LLC
$3.1M
231K
New
+231K sh
Q1 2026
18Weiss Asset Management LP
$3.0M
220K
−8.7%
Reduced · −21K sh
Q2 2026
19Schonfeld Strategic Advisors LLC
$2.7M
199K
+22%
Added · +36K sh
Q2 2026
20MILLENNIUM MANAGEMENT LLC
$2.6M
191K
New
+191K sh
Q1 2026
21ADAGE CAPITAL PARTNERS GP, L.L.C.
$2.5M
184K
New
+184K sh
Q1 2026
22Slotnik Capital, LLC
$2.4M
181K
New
+181K sh
Q1 2026
23AQR Arbitrage LLC
$2.4M
180K
New
+180K sh
Q1 2026
24TWO SIGMA INVESTMENTS, LP
$2.4M
179K
New
+179K sh
Q1 2026
25MORGAN STANLEY
$2.2M
165K
New
+165K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is RNA being bought or sold by institutions?

Last quarter, 48 funds opened a new position in RNA and 5 added to an existing one, while 2 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
48
funds
Added
5
funds
Reduced
2
funds
Exited
0
funds

Funds that own RNA also own

CompanyCo-held byCombined value
ELECTRONIC ARTS INCEA70 funds$7.7B
WARNER BROS DISCOVERY INCWBD68 funds$8.5B
NORFOLK SOUTHERN CORPNSC65 funds$7.1B
AMAZON.COM INCAMZN63 funds$105.3B
KENVUE INCKVUE63 funds$4.3B
MICROSOFT CORPMSFT62 funds$146.8B
ELI LILLY & COLLY61 funds$43.5B
UNITEDHEALTH GROUP INCUNH61 funds$17.3B
AT&T INCT61 funds$5.5B
WESTERN DIGITAL CORPWDC61 funds$4.5B
NVIDIA CORPNVDA60 funds$216.2B
META PLATFORMS INC-CLASS AMETA60 funds$62.6B

Ranked by how many of RNA's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$0
0 insiders
Net
$0
0 P/S txns
Signal
Mixed
open-market
DateInsiderRoleActionSharesValue
Jan 21, 2026McCarthy TeresaChief Human Resources OfficerSell (S)1K$107K
Jan 21, 2026McCarthy TeresaChief Human Resources OfficerSell (S)1K$105K
Jan 21, 2026LEVIN ARTHUR ADirectorSell (S)2K$127K
Jan 21, 2026MacLean Michael FChief Financial OfficerSell (S)3K$198K
Jan 21, 2026MacLean Michael FChief Financial OfficerSell (S)2K$131K
Jan 21, 2026Flanagan W. MichaelChief Scientific OfficerSell (S)3K$185K
Jan 21, 2026Flanagan W. MichaelChief Scientific OfficerSell (S)4K$288K
Jan 21, 2026Boyce SarahPresident and CEO, DirectorSell (S)6K$463K
Jan 21, 2026Boyce SarahPresident and CEO, DirectorSell (S)8K$579K
Jan 21, 2026Hughes Steven GeorgeChief Medical OfficerSell (S)2K$146K
Jan 21, 2026Hughes Steven GeorgeChief Medical OfficerSell (S)3K$209K
Jan 7, 2026Flanagan W. MichaelChief Scientific OfficerSell (S)2K$171K

Recent filings

15 shown

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Connected entities for RNA

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Ask your agent what changed in RNA

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/RNA/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for RNA.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for RNA. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.