LONG DANIEL D.

PrivateCIK: 2040349
Location

SOUTH SAN FRANCISCO, CA

LONG DANIEL D. (SVP, Drug Discovery) sold 13.5% of their position (15K shares) of SEPTERNA, INC. on the open market

Open‑market sale worth $532.6K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderLONG DANIEL D.CIK 2040349
IssuerSEPTERNA, INC.CIK 1984086
Officer· SVP, Drug Discovery
Since Feb 2026
-15K
Net shares
Net seller
$532.6K
Total sold
2
Open market trades
0B · 2S
6
Total transactions
15K acquired · 30K disposed
Non-Derivative Transactions4

Common Stock

Direct
M · Option Exercise

Shares

+10.53K

Price / share

$2.76

Trade value

$29.06K

% of position

10.9%
6/22/2026
96.41K106.94K

Common Stock

Direct
M · Option Exercise

Shares

+4.47K

Price / share

$11.70

Trade value

$52.31K

% of position

4.2%
6/22/2026
106.94K111.41K

Common Stock

Direct
S · Sale

Shares

8K

Price / share

$35.10

Trade value

$280.80K

% of position

7.2%
6/22/2026
111.41K103.41K

Common Stock

Direct
S · Sale

Shares

7K

Price / share

$35.97

Trade value

$251.78K

% of position

6.8%
6/22/2026
103.41K96.41K
Total

Net shares

+0.00

Net value

-$451.21K

Derivative Transactions2

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

10.53K shares

Shares

10.53K

Strike price

2.76

Held after

10.38K

Exercisable

6/22/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

4.47K shares

Shares

4.47K

Strike price

11.7

Held after

25.53K

Exercisable

6/22/2026
LONG DANIEL D. — Insider Transaction (Form 4) Filed Jun 24, 2026 | Finecho