Silence Therapeutics plc
SLN- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001479615
No open-market purchases or sales by Silence Therapeutics plc insiders were filed in the last 90 days; 72 institutions reported holding it in 13F filings for Q2 2026, worth $236.2M in total; no superinvestor holds it.
Other share classesSLNCF
Holders of 5% or more of SLN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Silence Therapeutics plc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Griffiths Richard Ian | 13D/A | 24.40%34.5M shares | +1.20 ppfrom 23.20% | Dec 20, 20245 filings | Jun 25, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on Silence Therapeutics plc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 9, 20261:16 PM ET | Lombard Odier Asset Management (USA) Corp | 13G/A | 4.20%5.94M shares | −3.40 ppfrom 7.60%Below 5% | Dec 31, 2025 | SEC |
| Jun 25, 202510:24 AM ET | Griffiths Richard Ianand 1 other | 13D/A | 24.40%34.5M shares | +1.20 ppfrom 23.20% | Jun 25, 2025 | SEC |
| May 15, 20259:02 PM ET | Redmile Group, LLCand 1 other | 13G/A | 4.70%6.64M shares | −0.40 ppfrom 5.10%Below 5% | Mar 31, 2025 | SEC |
| May 8, 202510:18 AM ET | Griffiths Richard Ianand 1 other | 13D/A | 23.20%32.9M shares | +1.40 ppfrom 21.80% | May 7, 2025 | SEC |
| Apr 24, 20259:28 AM ET | Griffiths Richard Ianand 1 other | 13D/A | 21.80%30.9M shares | +1.10 ppfrom 20.70% | Apr 24, 2025 | SEC |
| Mar 31, 202510:50 AM ET | Griffiths Richard Ianand 1 other | 13D/A | 20.70%29.3M shares | +1.40 ppfrom 19.30% | Mar 31, 2025 | SEC |
| Feb 14, 20258:03 PM ET | Redmile Group, LLCand 1 other | 13G | 5.10%7.20M shares | New | Dec 31, 2024 | SEC |
| Feb 11, 20256:41 PM ET | Lombard Odier Asset Management (USA) Corp | 13G/A | 7.60%10.7M shares | – | Dec 31, 2024 | SEC |
| Dec 20, 20245:32 PM ET | Griffiths Richard Ianand 1 other | 13D/A | 19.30%27.3M shares | – | Dec 18, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Silence Therapeutics plc shares.
No Form 144 notices for Silence Therapeutics plc are on file.