Insider Trading for SLSN
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired
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Shares Disposed
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Net Position
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Recent Activity (30 Days)
Acquisitions: 0 shares
Dispositions: 0 shares
Net: 0 shares
Recent insider activity has been balanced between buying and selling in the short term.
Quarterly Activity (3 Months)
Acquisitions: 0 shares
Dispositions: 0 shares
Net: 0 shares
Quarterly insider activity shows a balanced approach to trading.
Key Insider Activity: May 29, 2025 to Sep 3, 2026
Riffner Laura C
ExecutiveCorporate Officer
-60.0K shares
1 transactions
WHITMORE R JANET
DirectorDirector
+37.6K shares
7 transactions
WHITMORE BRADFORD T
Other10 Percent Owner
0 shares
4 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 3, 2026 | Riffner Laura C | ECorporate Officer | Unknown | 60.0K | $3.50 | $210,000.00 | 0 | View |
| Dec 24, 2025 | WHITMORE R JANET | DDirector | Purchase | 1.0K | $1.92 | $1,921.60 | 2.1M | View |
| Dec 24, 2025 | WHITMORE R JANET | DDirector | Purchase | 1.5K | $1.91 | $2,865.00 | 2.1M | View |
Nov 19, 2025 | Locked | — | — | — | — | — | — | — |
Nov 19, 2025 | Locked | — | — | — | — | — | — | — |
Nov 18, 2025 | Locked | — | — | — | — | — | — | — |
Nov 17, 2025 | Locked | — | — | — | — | — | — | — |
Nov 14, 2025 | Locked | — | — | — | — | — | — | — |
May 29, 2025 | Locked | — | — | — | — | — | — | — |
May 29, 2025 | Locked | — | — | — | — | — | — | — |
May 29, 2025 | Locked | — | — | — | — | — | — | — |
May 29, 2025 | Locked | — | — | — | — | — | — | — |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net sellers of SLSN stock, though this may be part of planned diversification.