Silence Therapeutics plc (SLN)
Silence Therapeutics plc (SLN) Insider Trading
Directors, officers and holders of more than 10% of SLN report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 97 transactions on file: 24 with code P, 19 with code S and 7 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 60,000 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 100,000 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 120,000 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 2,792,826 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 100,000 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 50,000 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 3,500 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 800,000 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 382,000 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 470,820 | Not measured | Not measured |
| Aug 10, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 605,174 | Not measured | Not measured |
| Jul 6, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 865,112 | Not measured | Not measured |
| Jul 2, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 50,082 | Not measured | Not measured |
| Jul 1, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 79,180 | Not measured | Not measured |
| Jul 1, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 50,000 | Not measured | Not measured |
| Jun 30, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 169,928 | Not measured | Not measured |
| Jun 29, 2026 | Griffiths Richard Ian | 10% Owner | S Sale | 330,072 | Not measured | Not measured |
| Jan 2, 2026 | Lemus David | Director | A Award | 90,000 | Not measured | Not measured |
| Jan 2, 2026 | HELLUMS RHONDA LYNETTE | Chief Financial Officer | A Award | 375,000 | Not measured | Not measured |
| Jan 2, 2026 | Romano Steven J. | EVP and Chief R&D Officer | A Award | 300,000 | Not measured | Not measured |
| Jan 2, 2026 | MCINERNEY TIMOTHY | Director | A Award | 90,000 | Not measured | Not measured |
| Jan 2, 2026 | Ede-Golightly James | Director | A Award | 90,000 | Not measured | Not measured |
| Dec 22, 2025 | Ede-Golightly James | Director | A Award | 90,000 | Not measured | Not measured |
| Dec 18, 2025 | Ross Iain | Director | A Award | 900,000 | Not measured | Not measured |
| Oct 27, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 2,000 | Not measured | Not measured |
| Oct 27, 2025 | Griffiths Richard Ian | 10% Owner | S Sale | 2,000 | Not measured | Not measured |
| Aug 3, 2025 | Griffiths Richard Ian | 10% Owner | S Sale | 20,000 | Not measured | Not measured |
| Aug 3, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 20,000 | Not measured | Not measured |
| Aug 1, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 4,034 | Not measured | Not measured |
| Jul 31, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 14,342 | Not measured | Not measured |
| Jul 30, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 8,923 | Not measured | Not measured |
| Jul 29, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 14,559 | Not measured | Not measured |
| Jul 22, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 2,910 | Not measured | Not measured |
| Jul 21, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 22,435 | Not measured | Not measured |
| Jul 15, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 43,293 | Not measured | Not measured |
| Jul 11, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 28,000 | Not measured | Not measured |
| Jul 9, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 30,133 | Not measured | Not measured |
| Jul 8, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 24,387 | Not measured | Not measured |
| Jul 7, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 7,937 | Not measured | Not measured |
| Jun 27, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 24,000 | Not measured | Not measured |
| Jun 26, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 65,739 | Not measured | Not measured |
| Jun 26, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 20,735 | Not measured | Not measured |
| Jun 24, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 26,624 | Not measured | Not measured |
| Jun 23, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 35,005 | Not measured | Not measured |
| Jun 22, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 20,977 | Not measured | Not measured |
| Jun 18, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 39,049 | Not measured | Not measured |
| Jun 17, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 31,399 | Not measured | Not measured |
| Jun 12, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 39,305 | Not measured | Not measured |
| May 28, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 9,169 | Not measured | Not measured |
| May 27, 2025 | Griffiths Richard Ian | 10% Owner | P Purchase | 50,000 | Not measured | Not measured |
The full Form 4 history is on the SLN company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.