Sean Brynjelsen Net Worth
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Sean Brynjelsen has an estimated net worth of at least $47.8 million*, as of July 15, 2026. They own 1.1 million shares of ETON stock. They have sold 330,000 shares of ETON stock since 2021, for an estimated $7.3 million.
Sean Brynjelsen $ETON SEC Form 4 Insider Trading
Sean Brynjelsen has filed a total of 10 insider trades in $ETON since 2021. Their most recent trade was a sale of 148 shares, made on May 28, 2026. Their largest trade was a sale of 119,852 shares, made on May 28, 2026. We estimate that they now own 1.1 million shares of $ETON, worth an estimated $40.4 million.
Insider Trading at $ETON
There have been a total of 69 insider trades reported at $ETON since 2021, with 217,500 shares purchased and 2.0 million shares sold. The most active insider traders in $ETON stock have been Sean Brynjelsen, David Krempa, and James R. Gruber. The most recent trade was a sale of 13,315 shares reported by Management Inc. Opaleye (None), made on Jul 14, 2026.
History of Insider Stock Trades by Sean Brynjelsen
| Company Ticker | Purchase / Sale | Shares | Date | Disclosed (EST) |
|---|---|---|---|---|
ETON
|
Sale | 148 | May 28, 2026 | May 29, 2026, 4:16 p.m. |
|
ETON
|
Sale | 119,852 | May 28, 2026 | May 29, 2026, 4:16 p.m. |
|
ETON
|
Sale | 8,655 | Jun 03, 2025 | June 5, 2025, 5:15 p.m. |
|
ETON
|
Sale | 400 | Jun 03, 2025 | June 5, 2025, 5:15 p.m. |
|
ETON
|
Sale | 70,000 | Jun 04, 2025 | June 5, 2025, 5:15 p.m. |
|
ETON
|
Sale | 70,000 | Jun 05, 2025 | June 5, 2025, 5:15 p.m. |
|
ETON
|
Sale | 60,945 | Jun 03, 2025 | June 5, 2025, 5:15 p.m. |
|
ETON
|
Purchase | 10,000 | Sep 22, 2022 | Sept. 23, 2022, 10:58 a.m. |
|
ETON
|
Purchase | 10,000 | Aug 20, 2021 | Aug. 19, 2021, 8 p.m. |
|
ETON
|
Purchase | 5,000 | Jun 03, 2021 | June 2, 2021, 8 p.m. |
$ETON Executives and Stock Owners with Insider Trades
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Sean Brynjelsen, President & CEO
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David Krempa, Chief Business Officer
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James R. Gruber, Chief Financial Officer
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Sean Brynjelsen, Chief Executive Officer
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William Wilson Troutman, CFO, Treasurer & Secretary
*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.