Atrium Therapeutics, Inc.

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Other Events

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Entry into a Material Definitive Agreement

Regulation FD Disclosure

No description available

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Certification of approval for listing and registration on a national securities exchange

No description available

No description available

No description available

Hoyos Rocio Martin

Younis Husam

Hughes Steven George

Flanagan W. Michael

Boyce Sarah

Kenney Stephanie

Gallagher Kathleen P.

Winslow Brendan R.

Winslow Brendan R.

Gallagher Kathleen P.

Younis Husam

Hoyos Rocio Martin

Kenney Stephanie

Hughes Steven George