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CIK 0001984086 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Septerna, Inc.

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Ticker
SEPN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
843891440
Phone
650-338-3533
Business address
250 EAST GRAND AVENUE, SUITE 65, SOUTH SAN FRANCISCO, CA, 94080
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$4,210,085
in 3 filings, $4.2M under 10b5-1 plans

Net −$4,210,085. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2025-03-07 Ezekowitz Alan Director Purchase +13,319 $6.93 $92K 117,420
2025-03-06 Ezekowitz Alan Director Purchase +41,355 $6.00 $248K 104,101
2025-03-05 Ezekowitz Alan Director Purchase +37,835 $5.82 $220K 62,746
2025-03-04 Ezekowitz Alan Director Purchase +7,491 $6.35 $48K 24,911
2025-02-27 Finer Jeffrey CEO and President Purchase +3,000 $5.80 $17K 771,907
2025-02-27 Labrucherie Gil M Chief Financial Officer Purchase +3,718 $5.85 $22K 40,000
2025-02-26 Finer Jeffrey CEO and President Purchase +4,000 $5.70 $23K 768,907
2025-02-25 Finer Jeffrey CEO and President Purchase +10,000 $5.68 $57K 764,907
2025-02-25 Labrucherie Gil M Chief Financial Officer Purchase +6,282 $5.59 $35K 36,282
2025-02-24 Third Rock Ventures VI, L.P. 10% owner Purchase +18,861 $6.00 $113K 4,211,659
2025-02-21 Third Rock Ventures VI, L.P. 10% owner Purchase +427,668 $5.94 $2.5M 4,192,798
2025-02-21 Labrucherie Gil M Chief Financial Officer Purchase +5,000 $5.85 $29K 30,000
2025-02-20 Third Rock Ventures VI, L.P. 10% owner Purchase +612,674 $5.92 $3.6M 3,765,130
2025-02-20 Labrucherie Gil M Chief Financial Officer Purchase +14,500 $5.88 $85K 25,000
2025-02-19 Labrucherie Gil M Chief Financial Officer Purchase +10,500 $5.51 $58K 10,500
2025-02-07 Labrucherie Gil M Chief Financial Officer Grant or award · Stock Option (Right to Buy) +222,000 222,000
2024-10-28 RA CAPITAL MANAGEMENT, L.P. Director Conversion +1,695,515 1,695,515
2024-10-28 RA CAPITAL MANAGEMENT, L.P. Director Conversion +1,130,343 1,130,343
2024-10-28 RA CAPITAL MANAGEMENT, L.P. Director Purchase +3,828,400 $18.00 $68.9M 5,523,915
2024-10-28 RA CAPITAL MANAGEMENT, L.P. Director Purchase +341,600 $18.00 $6.1M 1,471,943

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