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Septerna, Inc.

SEPN Net buying
CIK 0001984086 #2087 in the set updated 17 Sep 2026
Bought (120 mo)
$93.97M
out of their own pocket, the only kind of buying there is
Sold (120 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
+$17.92M
+$30.46M against sales at will

By person

10 insiders · 51 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
RA CAPITAL MANAGEMENT, L.P. entity
Director
$75.06M (2)
$63.45M (2)
+$11.61M
725,443
1.55%
$27.44M
—
Third Rock Ventures VI, L.P. entity
10% owner
$6.28M (3)
—
+$6.28M
4,211,659
9.02%
$159.31M
+33.6%
Third Rock Ventures V, L.P. entity
10% owner
$11.70M (2)
$7.40M (2) scheduled
+$4.30M
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%
Ezekowitz Alan
Director
$608.20K (4)
—
+$608.20K
117,420
0.2516%
$4.44M
+574.1%
Labrucherie Gil M
Chief Financial Officer
$229.16K (5)
—
+$229.16K
40,000
0.0857%
$1.51M
—
Finer Jeffrey
Chief Executive Officer
$96.96K (3)
—
+$96.96K
826,907
1.77%
$31.28M
+9.5%
Klein Uwe
SVP, Biological Sciences
—
—
—
23,008
0.0493%
$870.33K
—

Individual transactions

5
Insider
Date
Role
Action
Shares
Price
Amount
Klein Uwe
18 Aug 2025
SVP, Biological Sciences
Exercised, kept
7,621
$6.81
$51.90K
Klein Uwe
18 Aug 2025
SVP, Biological Sciences
Exercised, kept
4,935
$2.76
$13.62K
Klein Uwe
18 Aug 2025
SVP, Biological Sciences
Exercised, kept
10,452
$2.76
$28.85K
Finer Jeffrey
3 Apr 2025
CEO and President
Exercised, kept
5,000
$2.76
$13.80K
Finer Jeffrey
2 Apr 2025
CEO and President
Exercised, kept
50,000
$2.76
$138.00K
Show all 51 transactions →

What was left out

Form 4 filings counted 60
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 8
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 10,726,209
History held since 28 Oct 2024