InsiderClue
← All stocks

Eton Pharmaceuticals, Inc.

ETON Net selling
CIK 0001710340 #2154 in the set updated 17 Sep 2026
Bought (120 mo)
$4.43M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$50.72M
$0.00 on a plan · $9.43M straight out of an exercise
Sold at will
$41.29M
57 of 67 sales
Net
−$46.29M
−$36.86M against sales at will

By person

12 insiders · 103 transactions
85.5×

Sean E. Brynjelsen holds 85.5 times base salary in stock. $60.91M of shares against $712.43K in salary for 2025.

Salary from the company's own proxy. The shares are what Sean E. Brynjelsen last reported holding, valued at $61.77, the price Common Stock was last bought or sold at on the open market here, on 28 Aug 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
BRYNJELSEN SEAN
President & CEO
$264.12K (7)
$13.51M (11)
−$13.24M
986,134
3.45%
$60.91M
−12.4%
Opaleye Management Inc. entity
10% owner
$3.94M (15)
$15.98M (40)
−$12.04M
3,128,200
10.94%
$193.23M
−26.8%
HARROW HEALTH, INC. entity
10% owner
—
$10.63M (1)
−$10.63M
1,982,000
6.93%
$122.43M
−43.4%
Krempa David
Chief Business Officer
—
$5.36M (9) scheduled
−$5.36M
37,025
0.1295%
$2.29M
−54.5%
MAIER PAUL V
Director
$30.00K (1)
$2.95M (3) scheduled
−$2.92M
59,745
0.2090%
$3.69M
+9.1%
Adams Jennifer McKie
Director
—
$1.62M (1) scheduled
−$1.62M
0
0.0000%
$0.00
—
Gruber James R.
Chief Financial Officer
—
$673.71K (2)
−$673.71K
213,420
0.7467%
$13.18M
−18.5%
BAUM MARK L
Director
$60.00K (1)
—
+$60.00K
794,745
2.78%
$49.09M
+1.3%
Troutman William Wilson
CFO and Secretary
$52.15K (2)
—
+$52.15K
23,027
0.0806%
$1.42M
+76.8%
CASAMENTO CHARLES J
Director
$51.37K (2)
—
+$51.37K
71,920
0.2516%
$4.44M
+31.4%
RIEDEL NORBERT G
Director
$30.00K (1)
—
+$30.00K
67,155
0.2349%
$4.15M
—
Erdogan-Trinkaus Ipek
Chief Commercial Officer
—
—
—
2,403
0.0084%
$148.43K
−3.4%

Individual transactions

29
Insider
Date
Role
Action
Shares
Price
Amount
Opaleye Management Inc.
10 Jun 2025
10% owner
Buy indirect
2,930
$15.82
$46.36K
Opaleye Management Inc.
10 Jun 2025
10% owner
Buy indirect
5,000
$15.82
$79.12K
Opaleye Management Inc.
23 Oct 2024
10% owner
Buy indirect
10,000
$7.98
$79.81K
Opaleye Management Inc.
8 Oct 2024
10% owner
Buy indirect
3,970
$7.03
$27.91K
Opaleye Management Inc.
8 Oct 2024
10% owner
Buy indirect
30,000
$7.03
$210.88K
Opaleye Management Inc.
7 Oct 2024
10% owner
Buy indirect
1,248
$7.22
$9.01K
Opaleye Management Inc.
7 Oct 2024
10% owner
Buy indirect
10,000
$7.22
$72.24K
Opaleye Management Inc.
4 Oct 2024
10% owner
Buy indirect
1,852
$6.77
$12.54K
Opaleye Management Inc.
4 Oct 2024
10% owner
Buy indirect
15,000
$6.77
$101.57K
Opaleye Management Inc.
11 Sep 2024
10% owner
Buy indirect
5,000
$4.75
$23.75K
Opaleye Management Inc.
11 Sep 2024
10% owner
Buy indirect
45,000
$4.75
$213.75K
Opaleye Management Inc.
10 Sep 2024
10% owner
Buy indirect
7,500
$4.65
$34.88K
Opaleye Management Inc.
10 Sep 2024
10% owner
Buy indirect
50,000
$4.65
$232.50K
BRYNJELSEN SEAN
22 Sep 2022
Chief Executive Officer
Buy
10,000
$2.10
$21.04K
BRYNJELSEN SEAN
20 Aug 2021
President & CEO
Buy
10,000
$4.32
$43.20K
Troutman William Wilson
20 Aug 2021
CFO, Treasurer & Secretary
Buy
5,000
$4.43
$22.15K
BRYNJELSEN SEAN
3 Jun 2021
President & CEO
Buy
5,000
$5.96
$29.80K
Opaleye Management Inc.
16 Oct 2020
10% owner
Buy indirect
15,000
$7.00
$105.00K
Opaleye Management Inc.
16 Oct 2020
10% owner
Buy indirect
385,000
$7.00
$2.70M
BRYNJELSEN SEAN
13 Aug 2019
President & CEO
Buy
5,000
$6.15
$30.75K
CASAMENTO CHARLES J
9 Aug 2019
Director
Buy
3,500
$6.11
$21.37K
BRYNJELSEN SEAN
21 May 2019
President & CEO
Buy
8,600
$7.96
$68.43K
BRYNJELSEN SEAN
20 May 2019
President & CEO
Buy
1,400
$7.78
$10.89K
BAUM MARK L
15 Nov 2018
Director
Buy indirect
10,000
$6.00
$60.00K
Troutman William Wilson
15 Nov 2018
CFO, Treasurer & Secretary
Buy
5,000
$6.00
$30.00K
RIEDEL NORBERT G
15 Nov 2018
Director
Buy
5,000
$6.00
$30.00K
MAIER PAUL V
15 Nov 2018
Director
Buy
5,000
$6.00
$30.00K
BRYNJELSEN SEAN
15 Nov 2018
President & CEO
Buy
10,000
$6.00
$60.00K
CASAMENTO CHARLES J
15 Nov 2018
Director
Buy
5,000
$6.00
$30.00K
Show all 103 transactions →

What was left out

Form 4 filings counted 111
Amendments (4/A) skipped 3
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 10
Sales at will 57
Transactions with no price 0
Shares from compensation/vesting 675,337
Sales filed before the plan box existed 34
History held since 15 Nov 2018