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Eton Pharmaceuticals, Inc.

ETON Net selling
CIK 0001710340 #2154 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)
$25.18M
$0.00 on a plan · $9.43M straight out of an exercise
Sold at will
$15.75M
13 of 23 sales
Net
−$25.18M
−$15.75M against sales at will

By person

8 insiders · 27 transactions
83.3×

Sean E. Brynjelsen holds 83.3 times base salary in stock. $59.37M 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
—
$9.91M (6)
−$9.91M
961,194
3.36%
$59.37M
−18.2%
Opaleye Management Inc. entity
10% owner
—
$5.83M (7)
−$5.83M
40,000
0.1399%
$2.47M
−65.2%
Krempa David
Chief Business Officer
—
$4.86M (6) scheduled
−$4.86M
37,025
0.1295%
$2.29M
−54.5%
MAIER PAUL V
Director
—
$2.95M (3) scheduled
−$2.95M
59,745
0.2090%
$3.69M
0.0%
Adams Jennifer McKie
Director
—
$1.62M (1) scheduled
−$1.62M
0
0.0000%
$0.00
—
Gruber James R.
Chief Financial Officer
—
—
—
213,420
0.7467%
$13.18M
−18.5%
RIEDEL NORBERT G
Director
—
—
—
67,155
0.2349%
$4.15M
—
Erdogan-Trinkaus Ipek
Chief Commercial Officer
—
—
—
2,403
0.0084%
$148.43K
−3.4%

Individual transactions

27
Insider
Date
Role
Action
Shares
Price
Amount
MAIER PAUL V
28 Aug 2026
Director
Sold after exercise
128
$61.77
$7.91K
MAIER PAUL V
28 Aug 2026
Director
Sold after exercise
13,485
$60.21
$811.93K
MAIER PAUL V
28 Aug 2026
Director
Sold after exercise
36,387
$58.64
$2.13M
Krempa David
24 Aug 2026
Chief Business Officer
Sold after exercise
25,000
$65.07
$1.63M
BRYNJELSEN SEAN
20 Aug 2026
President & CEO
Sell
7,342
$62.12
$456.09K
BRYNJELSEN SEAN
20 Aug 2026
President & CEO
Sell
36,373
$61.11
$2.22M
BRYNJELSEN SEAN
20 Aug 2026
President & CEO
Sell
47,307
$60.17
$2.85M
BRYNJELSEN SEAN
19 Aug 2026
President & CEO
Sell
8,978
$62.65
$562.47K
BRYNJELSEN SEAN
14 Jul 2026
President & CEO
Exercised, kept
200,000
$1.37
$274.00K
Opaleye Management Inc.
14 Jul 2026
10% owner
Sell indirect
13,315
$37.54
$499.89K
Opaleye Management Inc.
14 Jul 2026
10% owner
Sell indirect
15,000
$37.54
$563.15K
Opaleye Management Inc.
7 Jul 2026
10% owner
Sell indirect
6,685
$38.37
$256.52K
Opaleye Management Inc.
7 Jul 2026
10% owner
Sell indirect
20,000
$38.37
$767.46K
Opaleye Management Inc.
6 Jul 2026
10% owner
Sell indirect
10,000
$38.00
$380.00K
Opaleye Management Inc.
2 Jul 2026
10% owner
Sell indirect
25,000
$37.39
$934.63K
Opaleye Management Inc.
2 Jul 2026
10% owner
Sell indirect
65,000
$37.39
$2.43M
Adams Jennifer McKie
17 Jun 2026
Director
Sold after exercise
50,000
$32.48
$1.62M
BRYNJELSEN SEAN
28 May 2026
President & CEO
Sell
148
$32.67
$4.84K
BRYNJELSEN SEAN
28 May 2026
President & CEO
Sell
119,852
$31.88
$3.82M
Krempa David
27 May 2026
Chief Business Officer
Sold after exercise
19,679
$31.47
$619.37K
Krempa David
26 May 2026
Chief Business Officer
Sold after exercise
37,524
$31.49
$1.18M
Krempa David
22 May 2026
Chief Business Officer
Sold after exercise
519
$35.00
$18.17K
Krempa David
22 May 2026
Chief Business Officer
Sold after exercise
9,315
$33.88
$315.59K
Krempa David
22 May 2026
Chief Business Officer
Sold after exercise
32,963
$33.22
$1.10M
RIEDEL NORBERT G
21 Apr 2026
Director
Exercised, kept
19,655
$8.61
$169.23K
RIEDEL NORBERT G
21 Apr 2026
Director
Exercised, kept
12,500
$7.31
$91.38K
RIEDEL NORBERT G
3 Feb 2026
Director
Exercised, kept
30,000
$4.42
$132.60K

What was left out

Form 4 filings counted 33
Amendments (4/A) skipped 2
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 13
Transactions with no price 0
Shares from compensation/vesting 539,322
History held since 15 Nov 2018