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Septerna, Inc.

SEPN Net selling

CIK 0001984086 #2087 in the set updated 17 Sep 2026

Bought (12 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$76.05M

$7.40M on a plan · $5.14M straight out of an exercise

Sold at will

$63.52M

3 of 27 sales

Net

−$76.05M

−$63.52M against sales at will

By person

10 insiders · 27 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

RA CAPITAL MANAGEMENT, L.P. entity

Director

—

$63.45M (2)

−$63.45M

725,443

1.55%

$27.44M

—

Third Rock Ventures V, L.P. entity

10% owner

—

$7.40M (2) scheduled

−$7.40M

9,220,847

19.75%

$348.80M

+1,113%

Shaikhly Samira

Chief People Officer

—

$2.80M (8) scheduled

−$2.80M

793

0.0017%

$30.00K

0.0%

Bhatt Elizabeth

President and COO

—

$1.45M (7) scheduled

−$1.45M

174,209

0.3732%

$6.59M

0.0%

Long Daniel D.

SVP, Drug Discovery

—

$951.33K (8) scheduled

−$951.33K

96,412

0.2066%

$3.65M

−3.5%

Third Rock Ventures VI, L.P. entity

10% owner

—

4,211,659

9.02%

$159.31M

+33.6%

Finer Jeffrey

Chief Executive Officer

—

826,907

1.77%

$31.28M

+9.5%

Ezekowitz Alan

Director

—

117,420

0.2516%

$4.44M

+574.1%

Labrucherie Gil M

Chief Financial Officer

—

40,000

0.0857%

$1.51M

—

Klein Uwe

SVP, Biological Sciences

—

23,008

0.0493%

$870.33K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Third Rock Ventures V, L.P.

12 Aug 2026

10% owner

Sold on a plan

141

$51.08

$7.20K

Third Rock Ventures V, L.P.

12 Aug 2026

10% owner

Sold on a plan

147,059

$50.27

$7.39M

Show all 27 transactions →

What was left out

Form 4 filings counted 34

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 3

Sales on a Rule 10b5-1 plan 2

Sales straight out of an exercise 22

Sales at will 3

Transactions with no price 0

Shares from compensation/vesting 158,614

History held since 28 Oct 2024