Citadel Advisors
SEPN

Citadel Advisors’s Septerna Inc SEPN Stock Holding History

Citadel Advisors’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
-11,900
Closed -$332K – 14575
2025
Q4 		$332K Sell
11,900
-3,100
-21% -$74K ﹤0.01% 9920
2025
Q3 		$282K Buy
15,000
+3,100
+26% +$40.7K ﹤0.01% 10518
2025
Q2 		$126K Buy
11,900
+4,500
+61% +$37.1K ﹤0.01% 11120
2025
Q1 		$42.8K Buy
+7,400
New +$84.5K ﹤0.01% 12469

Other funds holding SEPN

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
TGV
TRV GP V Boston, Massachusetts $401M AUM 284.76% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
TGV
TRV GP VI Boston, Massachusetts $136M AUM 328.39% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return

Citadel Advisors's SEPN Position: Q1 2026 in Review

Citadel Advisors sold out of Septerna Inc (SEPN) in Q1 2026, closing a stake of 75,945 shares — an estimated $2.12M sold.

Citadel Advisors first reported a position in SEPN in Q4 2024 and held it in 3 quarters. The position peaked at $9.27M in Q4 2024. 124 funds tracked by Wall St. Rank hold SEPN as of Q1 2026.

  • Citadel Advisors reported no remaining Septerna Inc position as of Q1 2026 after selling out during the quarter.
  • Citadel Advisors sold 75,945 Septerna Inc shares in Q1 2026, an estimated $2.12M.
  • Citadel Advisors first reported a position in Septerna Inc in Q4 2024 and held it in 3 quarters.
  • Citadel Advisors's Septerna Inc position peaked at $9.27M in Q4 2024.
  • 124 funds tracked by Wall St. Rank held Septerna Inc as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.