Silence Therapeutics plc (SLN) insider trading
Every open-market stock purchase and sale by Silence Therapeutics plc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Richard Ian Griffiths (10% owner) sold $87.8M in the last 90 days.
- Last insider buy: Richard Ian Griffiths (10% owner), $15.5K, 12 months ago.
Last 12 months: insiders bought $15.5K (1 buy) and sold $104M (3 sales). Last close $19.66 on Oct 22, 2026.
Recent SLN insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $44.7M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $12.8M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $9.7M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $7.6M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $6.1M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $1.9M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $1.6M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $1.6M |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $981K |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $805K |
| Aug 10, 2026 | Richard Ian Griffiths (10% owner) | Sold | $57.2K |
| Jul 6, 2026 | Richard Ian Griffiths (10% owner) | Sold | $9.1M |
| Jul 2, 2026 | Richard Ian Griffiths (10% owner) | Sold | $524K |
| Jul 1, 2026 | Richard Ian Griffiths (10% owner) | Sold | $841K |
| Jul 1, 2026 | Richard Ian Griffiths (10% owner) | Sold | $531K |
| Jun 30, 2026 | Richard Ian Griffiths (10% owner) | Sold | $1.8M |
| Jun 29, 2026 | Richard Ian Griffiths (10% owner) | Sold | $3.5M |
| Jan 2, 2026 | Timothy McInerney (Insider) | Bought (not open market) | — |
| Jan 2, 2026 | Rhonda Lynette Hellums (CFO) | Bought (not open market) | — |
| Jan 2, 2026 | Steven J. Romano (VP) | Bought (not open market) | — |
| Jan 2, 2026 | David Lemus (Insider) | Bought (not open market) | — |
| Jan 2, 2026 | James Ede-Golightly (Insider) | Bought (not open market) | — |
| Dec 22, 2025 | James Ede-Golightly (Insider) | Bought (not open market) | — |
| Dec 18, 2025 | Iain Ross (Insider) | Bought (not open market) | — |
| Oct 27, 2025 | Richard Ian Griffiths (10% owner) | Sold | $15.5K |
Who's trading SLN
- Richard Ian Griffiths, 10% owner: bought $15.5K (1 buy), sold $104M (18 sales), last Aug 10, 2026
- James Ede-Golightly, Insider: other filings, last Jan 2, 2026
- Rhonda Lynette Hellums, CFO: other filings, last Jan 2, 2026
- Steven J. Romano, VP: other filings, last Jan 2, 2026
- David Lemus, Insider: other filings, last Jan 2, 2026
- Timothy McInerney, Insider: other filings, last Jan 2, 2026
- Iain Ross, Insider: other filings, last Dec 18, 2025
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