AllianceBernstein
SEPN

AllianceBernstein’s Septerna Inc SEPN Stock Holding History

AllianceBernstein’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
Q2 		$718K Buy
29,900
+10,300
+53% +$292K ﹤0.01% 2534
2026
Q1 		$546K Hold
19,600
– – ﹤0.01% 2594
2025
Q4 		$546K Sell
19,600
-2,500
-11% -$59.7K ﹤0.01% 2619
2025
Q3 		$416K Hold
22,100
– – ﹤0.01% 2779
2025
Q2 		$234K Buy
+22,100
New +$182K ﹤0.01% 3013

Other funds holding SEPN

RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
TGV
TRV GP V Boston, Massachusetts $498M AUM 267.53% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
TGV
TRV GP VI Boston, Massachusetts $232M AUM 247.08% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.22B AUM 242.83% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM

AllianceBernstein's SEPN Position: Q2 2026 in Review

AllianceBernstein increased its Septerna Inc (SEPN) stake by 53% in Q2 2026, buying an estimated $292K and bringing the position to 29,900 shares worth $718K. The position accounts for ﹤0.01% of the portfolio, ranked #2534.

AllianceBernstein first reported a position in SEPN in Q2 2025 and has held it in 5 quarters since. 154 funds tracked by Wall St. Rank hold SEPN as of Q2 2026.

  • AllianceBernstein held 29,900 shares of Septerna Inc worth $718K as of Q2 2026.
  • AllianceBernstein bought 10,300 Septerna Inc shares in Q2 2026, an estimated $292K.
  • Septerna Inc made up ﹤0.01% of AllianceBernstein's portfolio in Q2 2026, its #2534 holding.
  • AllianceBernstein first reported a position in Septerna Inc in Q2 2025 and has held it in 5 quarters since.
  • 154 funds tracked by Wall St. Rank held Septerna Inc as of Q2 2026.

Based on AllianceBernstein's 13F filing for Q2 2026, filed 14 Aug 2026.