InsiderTrades

Long Daniel D.

SEC CIK 2040349 · EDGAR

Buying vs selling by month open-market trades, last 24 months, SEPN
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
SEPNSepterna, Inc.SVP, Drug Discovery 99.7K — $951.3K 92025-11-102026-09-01

Most active insiders at SEPN, 12 months

#InsiderTitleBoughtSold
1 RA CAPITAL MANAGEMENT, L.P.Dir, 10% —$63.45M
2 Shaikhly SamiraCHRO —$2.80M
3 Bhatt ElizabethPres, COO —$1.45M
4 Long Daniel D.SVP, Drug Discovery —$951.3K
5 Third Rock Ventures V, L.P.10% —-$7.40M

Transactions 9

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
DT 2026-09-03 19:01 2026-09-01 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery M - OptEx $2.76 +3,333 99.7K +3% +$9,199
DT 2026-09-03 19:01 2026-09-01 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery S - Sale+OE $37.83 -3,333 96.4K -3% -$126.1K
DMT 2026-08-05 19:00 2026-08-03 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery M - OptEx $2.76 +3,334 99.7K +3% +$9,202
DMT 2026-08-05 19:00 2026-08-03 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery S - Sale+OE $34.47 -3,334 96.4K -3% -$114.9K
DT 2026-07-02 19:00 2026-07-01 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery M - OptEx $2.76 +3,333 99.7K +3% +$9,199
DMT 2026-07-02 19:00 2026-07-01 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery S - Sale+OE $34.36 -3,333 96.4K -3% -$114.5K
DMT 2026-06-24 19:24 2026-06-22 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery M - OptEx $5.42 +15.0K 111.4K +16% +$81.4K
DMT 2026-06-24 19:24 2026-06-22 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery S - Sale+OE $35.51 -15.0K 96.4K -13% -$532.6K
2025-11-13 2025-11-10 SEPN Septerna, Inc. Long Daniel D. SVP, Drug Discovery S - Sale $18.06 -3,501 92.9K -4% -$63.2K

Purchase Sale Sale after option exercise All abbreviations