Michael Cloonan Net Worth
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Michael Cloonan has an estimated net worth of at least $27.4 million*, as of Oct. 29, 2025. They own 547,343 shares of SION stock. They have sold 200,000 shares of SION stock since 2021, for an estimated $6.3 million.
Michael Cloonan $SION SEC Form 4 Insider Trading
Michael Cloonan has filed a total of 12 insider trades in $SION since 2021. Their most recent trade was a sale of 13,324 shares, made on Oct 21, 2025. Their largest trade was a sale of 33,532 shares, made on Oct 21, 2025. We estimate that they now own 547,343 shares of $SION, worth an estimated $21.0 million.
Insider Trading at $SION
There have been a total of 86 insider trades reported at $SION since 2021, with 3.5 million shares purchased and 1.4 million shares sold. The most active insider traders in $SION stock have been Michael Cloonan, Elena Ridloff, and Jennifer Fitzpatrick. The most recent trade was a sale of 14,116 shares reported by CAPITAL MANAGEMENT, L.P. RA (None), made on Oct 24, 2025.
History of Insider Stock Trades by Michael Cloonan
| Company Ticker | Purchase / Sale | Shares | Date | Disclosed (EST) |
|---|---|---|---|---|
SION
|
Sale | 13,324 | Oct 21, 2025 | Oct. 22, 2025, 5:39 p.m. |
|
SION
|
Sale | 33,532 | Oct 21, 2025 | Oct. 22, 2025, 5:39 p.m. |
|
SION
|
Sale | 22,895 | Oct 21, 2025 | Oct. 22, 2025, 5:39 p.m. |
|
SION
|
Sale | 30,049 | Oct 21, 2025 | Oct. 22, 2025, 5:39 p.m. |
|
SION
|
Sale | 10,225 | Oct 16, 2025 | Oct. 17, 2025, 5:11 p.m. |
|
SION
|
Sale | 14,775 | Oct 15, 2025 | Oct. 17, 2025, 5:11 p.m. |
|
SION
|
Sale | 200 | Oct 16, 2025 | Oct. 17, 2025, 5:11 p.m. |
|
SION
|
Sale | 7,793 | Sep 29, 2025 | Sept. 30, 2025, 4:09 p.m. |
|
SION
|
Sale | 17,207 | Sep 26, 2025 | Sept. 30, 2025, 4:09 p.m. |
|
SION
|
Sale | 7,426 | Aug 27, 2025 | Aug. 28, 2025, 5:40 p.m. |
|
SION
|
Sale | 17,574 | Aug 26, 2025 | Aug. 28, 2025, 5:40 p.m. |
|
SION
|
Sale | 25,000 | Aug 20, 2025 | Aug. 21, 2025, 4:05 p.m. |
$SION Executives and Stock Owners with Insider Trades
-
Michael Cloonan, President & CEO
-
Elena Ridloff, CFO & Head of Corp. Dev.
-
Jennifer Fitzpatrick, Chief Legal Officer
*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.