Silence Therapeutics plc
SLNFigures shown here come from public SEC filings. Dates beside each section show the available history.
How Silence Therapeutics plc Makes Money
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From revenue to net income
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Financial Summary
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 5 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Feb 13, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| ROYAL BANK OF CANADA | 2026-03-31 | 16 | Not shown | SEC filing |
| MILLENNIUM MANAGEMENT LLC | 2026-03-31 | 1,074,191 | Not shown | SEC filing |
| Qube Research & Technologies Ltd | 2026-03-31 | 104,555 | Not shown | SEC filing |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2026-03-31 | 115,281 | Not shown | SEC filing |
| BOOTHBAY FUND MANAGEMENT, LLC | 2026-03-31 | 209,088 | Not shown | SEC filing |
| Tetragon Partners GP Ltd | 2026-03-31 | 630,161 | Not shown | SEC filing |
| XTX Topco Ltd | 2026-03-31 | 106,002 | Not shown | SEC filing |
| RHUMBLINE ADVISERS | 2026-03-31 | 13,935 | Not shown | SEC filing |
| Siren, L.L.C. | 2026-03-31 | 2,911,438 | Not shown | SEC filing |
| GAMMA Investing LLC | 2026-03-31 | 9,365 | Not shown | SEC filing |
| Nantahala Capital Management, LLC | 2026-03-31 | 2,146,731 | Not shown | SEC filing |
| Mirae Asset Global Investments Co., Ltd. | 2026-03-31 | 2,450 | Not shown | SEC filing |
| Nextech Invest, Ltd. | 2026-03-31 | 952,400 | Not shown | SEC filing |
| UBS Group AG | 2026-03-31 | 246,937 | Not shown | SEC filing |
| BlackRock, Inc. | 2026-03-31 | 204,777 | Not shown | SEC filing |
| 5AM Venture Management, LLC | 2026-03-31 | 476,200 | Not shown | SEC filing |
| Steward Partners Investment Advisory, LLC | 2026-03-31 | 100 | Not shown | SEC filing |
| SG Americas Securities, LLC | 2026-03-31 | 286,698 | Not shown | SEC filing |
| BNP PARIBAS FINANCIAL MARKETS | 2026-03-31 | 147,668 | Not shown | SEC filing |
| GREAT POINT PARTNERS LLC | 2026-03-31 | 1,020,489 | Not shown | SEC filing |
- Each value is checked against Silence Therapeutics plc's share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 20 rows: no share price from within three months of their report dates is on file, so they could not be checked.
Filer report history
Two reports per filer, as filed. No change is calculated, because the data on file cannot confirm that both reports describe the same security.
- HSBC HOLDINGS PLC: 172,834 shares reported 2025-12-31; 122,834 shares reported 2026-03-31.
- SIMPLEX TRADING, LLC: 3,991 shares reported 2025-12-31; 612 shares reported 2026-03-31.
- SBI Securities Co., Ltd.: 28 shares reported 2025-12-31; 28 shares reported 2026-03-31.
- Ikarian Capital, LLC: 865,784 shares reported 2025-12-31; 865,784 shares reported 2026-03-31.
- MARSHALL WACE, LLP: 155,680 shares reported 2025-12-31; 169,616 shares reported 2026-03-31.
- BANK OF AMERICA CORP /DE/: 2,966 shares reported 2025-12-31; 29,773 shares reported 2026-03-31.
- JANE STREET GROUP, LLC: 29,168 shares reported 2025-12-31; 100,927 shares reported 2026-03-31.
- Point72 Asset Management, L.P.: 114,070 shares reported 2025-12-31; 119,711 shares reported 2026-03-31.
- ADAR1 Capital Management, LLC: 23,643 shares reported 2025-12-31; 172,157 shares reported 2026-03-31.
- Redmile Group, LLC: 2,164,777 shares reported 2025-12-31; 2,164,777 shares reported 2026-03-31.
- GEODE CAPITAL MANAGEMENT, LLC: 29,538 shares reported 2025-12-31; 29,538 shares reported 2026-03-31.
- BARCLAYS PLC: 5,065 shares reported 2025-12-31; 2,937 shares reported 2026-03-31.
Showing the 12 most recent filer reports.
14 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among Silence Therapeutics plc's recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2025-05-13 · Griffiths Richard Ian (derivative): Larger than 55 of the 61 other insider purchases of American Depositary Shares on file. SEC filing
- 2025-05-06 · Griffiths Richard Ian (derivative): Larger than 57 of the 61 other insider purchases of American Depositary Shares on file. SEC filing
- 2025-05-05 · Griffiths Richard Ian (derivative): Larger than 57 of the 61 other insider purchases of American Depositary Shares on file. SEC filing
- 2025-04-28 · Griffiths Richard Ian (derivative): Larger than 56 of the 61 other insider purchases of American Depositary Shares on file. SEC filing
- 2025-04-21 · Griffiths Richard Ian (derivative): Larger than 57 of the 61 other insider purchases of American Depositary Shares on file. SEC filing
- 2025-03-31 · Griffiths Richard Ian (derivative): Larger than 57 of the 61 other insider purchases of American Depositary Shares on file. SEC filing
- 2025-01-17 · Griffiths Richard Ian (derivative): Larger than all 61 other insider purchases of American Depositary Shares on file. SEC filing
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2025-10-27 | Griffiths Richard Ian · 10% owner | American Depositary Shares | P — Open market or private purchase | +2,000 | unknown | SEC filing |
| 2025-10-27 | Griffiths Richard Ian · 10% owner | American Depositary Shares | S — Open market or private sale | +2,000 | unknown | SEC filing |
| 2025-08-03 | Griffiths Richard Ian · 10% owner | American Depositary Shares | P — Open market or private purchase | +20,000 | unknown | SEC filing |
| 2025-08-03 | Griffiths Richard Ian · 10% owner | American Depositary Shares | S — Open market or private sale | +20,000 | unknown | SEC filing |
| 2025-08-01 | Griffiths Richard Ian · 10% owner | American Depositary Shares | P — Open market or private purchase | +4,034 | unknown | SEC filing |
| 2025-07-31 | Griffiths Richard Ian · 10% owner | American Depositary Shares | P — Open market or private purchase | +14,342 | unknown | SEC filing |
| 2025-07-30 | Griffiths Richard Ian · 10% owner | American Depositary Shares | P — Open market or private purchase | +8,923 | unknown | SEC filing |
| 2025-07-29 | Griffiths Richard Ian · 10% owner | American Depositary Shares | P — Open market or private purchase | +14,559 | unknown | SEC filing |
Showing 8 of 12 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-01-02 | Lemus David · Director | Share Option (Right to Buy) | A — Grant, award, or other acquisition | +90,000 | SEC filing |
| 2026-01-02 | HELLUMS RHONDA LYNETTE · Chief Financial Officer | Employee Share Option (Right to Buy) | A — Grant, award, or other acquisition | +375,000 | SEC filing |
| 2026-01-02 | Romano Steven J. · EVP and Chief R&D Officer | Employee Share Option (Right to Buy) | A — Grant, award, or other acquisition | +300,000 | SEC filing |
| 2026-01-02 | MCINERNEY TIMOTHY · Director | Share Option (Right to Buy) | A — Grant, award, or other acquisition | +90,000 | SEC filing |
| 2026-01-02 | Ede-Golightly James · Director | Share Option (Right to Buy) | A — Grant, award, or other acquisition | +90,000 | SEC filing |
| 2025-12-22 | Ede-Golightly James · Director | Share Option (Right to Buy) | A — Grant, award, or other acquisition | +90,000 | SEC filing |
| 2025-12-18 | Ross Iain · Interim PEO | Employee Share Option (Right to Buy) | A — Grant, award, or other acquisition | +900,000 | SEC filing |
| 2025-05-05 | MCINERNEY TIMOTHY · Director | Share Option (Right to Buy) | A — Grant, award, or other acquisition | +48,000 | SEC filing |
Showing 8 of 10 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.