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PRIMECAP MANAGEMENT CO/CA/

Position in SEPN — Septerna, Inc.

CIK 763212 PASADENA, CA

Position in SEPN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$39,095,623
+$13,892,142 QoQ
Shares Held
1,167,382
+11.3% QoQ
Ownership
2.50%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#12
of 154 holders
Holding Since
Dec 2025
3 quarters on record
Voting authority Sole 89% Shared 0% None 11%

Common Shares in SEPN Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

PRIMECAP MANAGEMENT CO/CA/ holds $3,557,107,452 across 15 Biotechnology names. SEPN ranks #10 (1.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SEPN

Export CSV
3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $39,095,623 1,167,382
2026-03-31 $25,203,481 1,048,834
2025-12-31 $15,225,268 546,100