Loomis, Sayles & Company
SEPN

Loomis, Sayles & Company’s Septerna Inc SEPN Stock Holding History

Loomis, Sayles & Company’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 		$20.9M Buy
+624,752
New +$17.7M 0.03% 249

Other funds holding SEPN

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
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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
AG
Algert Global San Francisco, California $8.43B AUM 80.94% 1-Year Est. Return

Loomis, Sayles & Company's SEPN Position: Q2 2026 in Review

Loomis, Sayles & Company opened a new position in Septerna Inc (SEPN) in Q2 2026: 624,752 shares worth $20.9M. The stake represents 0.03% of the portfolio and ranks #249 among its holdings.

111 funds tracked by Wall St. Rank hold SEPN as of Q2 2026.

  • Loomis, Sayles & Company held 624,752 shares of Septerna Inc worth $20.9M as of Q2 2026.
  • Septerna Inc was a new Loomis, Sayles & Company position in Q2 2026.
  • Septerna Inc made up 0.03% of Loomis, Sayles & Company's portfolio in Q2 2026, its #249 holding.
  • 111 funds tracked by Wall St. Rank held Septerna Inc as of Q2 2026.

Based on Loomis, Sayles & Company's 13F filing for Q2 2026, filed 14 Aug 2026.