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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•39 filings

ETON

Eton Pharmaceuticals, Inc.

Net sales of $10.9M over the last 3 months

3 sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

−$10,897,501

0 buyers · 3 sellers

12-month purchases

$0.00

0 distinct insiders

12-month sales

$25,408,606

5 distinct insiders

Highlighted alerts

26

0 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

91
Raw transactions
Everything returned by the filing
26
Voluntary view
P/S trades after deterministic checks
63
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
Code
M
Shares
10,522
Price
—
Footnotes
3

The Reporting Person will provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. The shares were sold in multiple trades at prices ranging from $54.915 to $55.135. The price reported above reflects the weighted average sales price. On October 2, 2024, the reporting person was granted 42,088 restricted stock units which vest in four equal annual installments beginning October 2, 2025.

Raspberry interpretation
Informational — no alert

Reason: administrative_code.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

26 transactions

Krempa David

Chief Business Officer

SaleAlert
Shares
4,166
Price
$55.07
Value
$229,406
Open SEC filing

MAIER PAUL V

Director

SaleAlert
Shares
128
Price
$61.77
Value
$7,907
Open SEC filing

MAIER PAUL V

Director

SaleAlert
Shares
13,485
Price
$60.21
Value
$811,932
Open SEC filing

MAIER PAUL V

Director

SaleAlert
Shares
36,387
Price
$58.64
Value
$2,133,734
Open SEC filing

Krempa David

Chief Business Officer

SaleAlert
Shares
25,000
Price
$65.07
Value
$1,626,750
Open SEC filing

BRYNJELSEN SEAN

President & CEO

SaleAlert
Shares
7,342
Price
$62.12
Value
$456,085
Open SEC filing

BRYNJELSEN SEAN

President & CEO

SaleAlert
Shares
36,373
Price
$61.11
Value
$2,222,754
Open SEC filing

BRYNJELSEN SEAN

President & CEO

SaleAlert
Shares
47,307
Price
$60.17
Value
$2,846,462
Open SEC filing

BRYNJELSEN SEAN

President & CEO

SaleAlert
Shares
8,978
Price
$62.65
Value
$562,472
Open SEC filing

Opaleye Management Inc.

10% owner

SaleAlert
Shares
13,315
Price
$37.54
Value
$499,886
Open SEC filing

Opaleye Management Inc.

10% owner

SaleAlert
Shares
15,000
Price
$37.54
Value
$563,147
Open SEC filing

Opaleye Management Inc.

10% owner

SaleAlert
Shares
6,685
Price
$38.37
Value
$256,522
Open SEC filing

Opaleye Management Inc.

10% owner

SaleAlert
Shares
20,000
Price
$38.37
Value
$767,456
Open SEC filing

Opaleye Management Inc.

10% owner

SaleAlert
Shares
10,000
Price
$38.00
Value
$380,000
Open SEC filing

Opaleye Management Inc.

10% owner

SaleAlert
Shares
25,000
Price
$37.39
Value
$934,628
Open SEC filing

Opaleye Management Inc.

10% owner

SaleAlert
Shares
65,000
Price
$37.39
Value
$2,430,032
Open SEC filing

Adams Jennifer McKie

Director

SaleAlert
Shares
50,000
Price
$32.48
Value
$1,623,795
Open SEC filing

BRYNJELSEN SEAN

President & CEO

SaleAlert
Shares
148
Price
$32.67
Value
$4,835
Open SEC filing

BRYNJELSEN SEAN

President & CEO

SaleAlert
Shares
119,852
Price
$31.88
Value
$3,820,882
Open SEC filing

Krempa David

Chief Business Officer

SaleAlert
Shares
19,679
Price
$31.47
Value
$619,375
Open SEC filing

Krempa David

Chief Business Officer

SaleAlert
Shares
37,524
Price
$31.49
Value
$1,181,732
Open SEC filing

Krempa David

Chief Business Officer

SaleAlert
Shares
519
Price
$35.00
Value
$18,165
Open SEC filing

Krempa David

Chief Business Officer

SaleAlert
Shares
9,315
Price
$33.88
Value
$315,594
Open SEC filing

Krempa David

Chief Business Officer

SaleAlert
Shares
32,963
Price
$33.22
Value
$1,095,057
Open SEC filing

Gruber James R.

Chief Financial Officer

SaleAlert
Shares
2,631
Price
$16.02
Value
$42,149
Open SEC filing

Gruber James R.

Chief Financial Officer

SaleAlert
Shares
39,082
Price
$16.16
Value
$631,565
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.