Atrium Therapeutics Inc. (RNA) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-08-14
4:37 pm
Sale
2026-06-3013GATRIUM THERAPEUTICS INC
RNA
RA Capital Management, L.P.0
0.000%
-864,102decrease
(Position Closed)
Filing
History
2026-08-14
4:07 pm
Purchase
2026-06-3013GATRIUM THERAPEUTICS INC
RNA
Sessa Capital IM, L.P.1,500,000
8.800%
1,500,000increase
(New Position)
Filing
History
2026-08-14
10:38 am
Sale
2026-06-3013GATRIUM THERAPEUTICS INC
RNA
T. Rowe Price Associates, Inc.1,472,984
8.600%
-80,226decrease
(-5.17%)
Filing
History
2026-07-27
4:25 pm
Purchase
2026-06-3013GATRIUM THERAPEUTICS INC
RNA
BlackRock Inc.
BLK
1,135,757
6.600%
243,370increase
(+27.27%)
Filing
History
2026-05-15
4:32 pm
Purchase
2026-03-3113GATRIUM THERAPEUTICS INC
RNA
RA Capital Management, L.P.864,102
5.600%
864,102increase
(New Position)
Filing
History
2026-04-27
4:12 pm
Purchase
2026-03-3113GATRIUM THERAPEUTICS INC
RNA
BlackRock Inc.
BLK
892,387
5.200%
892,387increase
(New Position)
Filing
History
2026-04-08
3:25 pm
Purchase
2026-03-3113GATRIUM THERAPEUTICS INC
RNA
T. Rowe Price Associates, Inc.1,553,210
10.000%
1,553,210increase
(New Position)
Filing
History