Atom Investors’s Septerna Inc SEPN Stock Holding History

Atom Investors’s Portfolio SEPN Stock Details SEPN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-9,791	Closed	-$273K	–	879
2025 Q4	$273K	Buy	+9,791	New	+$234K	0.02%	455

Other funds holding SEPN

RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return

TRV GP V Boston, Massachusetts $401M AUM 284.76% 1-Year Est. Return

Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

TRV GP VI Boston, Massachusetts $136M AUM 328.39% 1-Year Est. Return

Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return

Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return

Atom Investors's SEPN Position: Q1 2026 in Review

Atom Investors sold out of Septerna Inc (SEPN) in Q1 2026, closing a stake of 9,791 shares — an estimated $273K sold.

Atom Investors first reported a position in SEPN in Q4 2025 and held it in 1 quarter. The position peaked at $273K in Q4 2025. 124 funds tracked by Wall St. Rank hold SEPN as of Q1 2026.

Atom Investors reported no remaining Septerna Inc position as of Q1 2026 after selling out during the quarter.
Atom Investors sold 9,791 Septerna Inc shares in Q1 2026, an estimated $273K.
Atom Investors first reported a position in Septerna Inc in Q4 2025 and held it in 1 quarter.
Atom Investors's Septerna Inc position peaked at $273K in Q4 2025.
124 funds tracked by Wall St. Rank held Septerna Inc as of Q1 2026.

Based on Atom Investors's 13F filing for Q1 2026, filed 15 May 2026.