LONG DANIEL D.

PrivateCIK: 2040349
Location

SOUTH SAN FRANCISCO, CA

Senior insider sale

SVP, Drug Discovery at SEPTERNA, INC. — senior position signals high conviction

$904.3K

25K shares

What this filing means

LONG DANIEL D. plans to sell 25K shares of SEPTERNA, INC. valued at approximately $904.3K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderLONG DANIEL D.CIK 2040349
IssuerSEPTERNA, INC.CIK 1984086
Officer· SVP, Drug Discovery
Since Feb 2026
25K
Shares to sell
$904.3K
Approx. market value
25K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Sort

Exercise of Stock Options

Cash

6/22/2026
25K
Total acquired25K
Planned & Completed Dispositions1
Sort
NASDAQPlanned

Units to sell

25K

Market value

$904.3K

6/22/2026
Total

Units

25K

Value

$904.3K

LONG DANIEL D. — Planned Insider Sale (Form 144) | Finecho