SLN · Insider trading · 13F holders · Congress trades
Silence Therapeutics PLC (SLN)
Who is buying and selling SLN: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 12
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
SLN at a glance
- No open-market insider purchases or sales of SLN were filed in the last 90 days.
- 12 13F filers hold SLN among their 50 largest positions, worth $143.7M combined. The biggest bets by portfolio weight are 5AM Venture Management, LLC (1.8%), Ishara Investments LP (1.8%) and Redmile Group, LLC (1.6%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in SLN.
SLN insider trading
No open-market insider purchases or sales of SLN were filed in the last 90 days.
Who owns SLN? Hedge funds and superinvestors
12 13F filers hold SLN among their 50 largest positions, worth $143.7M combined. The biggest bets by portfolio weight are 5AM Venture Management, LLC (1.8%), Ishara Investments LP (1.8%) and Redmile Group, LLC (1.6%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Siren, L.L.C.Investment manager | 0.7% | $36.4M | 3,311,438 | — | Q2 2026 |
| TCG Crossover Management, LLCHedge fund | 0.8% | $33.3M | 3,033,560 | +0.0% shares | Q2 2026 |
| Redmile Group, LLCHedge fund | 1.6% | $23.8M | 2,164,777 | +0.0% shares | Q2 2026 |
| Nantahala Capital Management, LLCHedge fund | 0.9% | $14.8M | 1,346,731 | -37.3% shares | Q2 2026 |
| Nextech Invest Ltd.Hedge fund | 0.5% | $10.5M | 952,400 | +0.0% shares | Q2 2026 |
| Tetragon Partners GP LtdHedge fund | 1.4% | $8.4M | 764,256 | +21.3% shares | Q2 2026 |
| 5AM Venture Management, LLCVenture capital | 1.8% | $5.2M | 476,200 | +0.0% shares | Q2 2026 |
| Great Point Partners LLCHedge fund | 1.2% | $4.9M | 450,000 | -55.9% shares | Q2 2026 |
| Ishara Investments LPHedge fund | 1.8% | $2.4M | 55,350 | -60.6% shares | Q2 2026 |
| Propel Bio Management, LLCHedge fund | 1.1% | $2.1M | 191,733 | New | Q2 2026 |
| M28 Capital Management LPHedge fund | 2.4% | $1.1M | 101,203 | +0.0% shares | Q2 2026 |
| Birchview Capital, LPWealth manager | 0.4% | $782K | 71,218 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 12). Screen SLN in the grand portfolio →
SLN stock trades by members of Congress
No member of Congress has disclosed a trade in SLN.
SLN questions and answers
Are insiders buying SLN stock?
No open-market insider purchases or sales of SLN were filed in the last 90 days.
Which hedge funds own SLN?
12 13F filers hold SLN among their 50 largest positions, worth $143.7M combined. The biggest bets by portfolio weight are 5AM Venture Management, LLC (1.8%), Ishara Investments LP (1.8%) and Redmile Group, LLC (1.6%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded SLN?
No member of Congress has disclosed a trade in SLN.
Who is the largest holder of SLN?
Among 13F filers, Siren, L.L.C. reports the largest SLN position, $36.4M (3,311,438 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is 5AM Venture Management, LLC's: 1.8% of its portfolio.
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