Septerna, INC Schedule 13G passive stakes

Driehaus Capital Management LLC has amended its Schedule 13G filing to report an increased beneficial ownership of Septerna, Inc. common stock to 9.83%.

Driehaus Capital Management LLC has increased its beneficial ownership in Septerna, Inc. to 10.46% as of May 31, 2025, up from 7.03% reported on March 31, 2025.

Multiple entities associated with Biotechnology Value Fund, including BVF Partners L.P. and Mark N. Lampert, have disclosed a combined beneficial ownership of 9.9% of Septerna, Inc.'s common stock as of March 31, 2025.

Driehaus Capital Management LLC has filed an amended Schedule 13G, disclosing an increased beneficial ownership in Septerna, Inc. to 7.03% as of March 31, 2025, up from 5.83% at the end of 2024.

Third Rock Ventures V, L.P. and Third Rock Ventures VI, L.P., along with their respective general partners, have filed an amended Schedule 13G disclosing beneficial ownership of 14.0% and 9.5% respectively, in Septerna, Inc.'s common stock.

Driehaus Capital Management LLC has reported a passive beneficial ownership of 5.83% in Septerna, Inc.'s common stock as of December 31, 2024, through a Schedule 13G filing with the SEC.

Third Rock Ventures entities have disclosed beneficial ownership of 14.0% and 7.1% stakes in Septerna, Inc. common stock, totaling 9,368,047 shares.