Who owns SLN?
Institutional ownership of Silence Therapeutics Plc from Form 13F, Q2 2026
72 institutional managers reported holding Silence Therapeutics Plc (SLN) in Form 13F filings for Q2 2026, with 23,584,105 shares worth $253M. The largest reported holder was Siren, L.L.C. Managers that filed both quarters added a net 3,674,610 shares (+18.5%). 20 opened new positions and 4 sold out.
- Funds holding
- 72
- Value held
- $253M
- New / sold out
- 20 / 4
- Net shares, same filers
- +18.5%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of SLN
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| Siren, L.L.C. | $36.4M | 14.0% | 3,311,438 | Added |
| TCG Crossover Management, LLC | $33.3M | 12.9% | 3,033,560 | Unchanged |
| Nantahala Capital Management, LLC | $29.6M | 11.4% | 2,693,462 | Added |
| Redmile Group, LLC | $23.8M | 9.2% | 2,164,777 | Unchanged |
| Citadel Advisors LLC | $14.6M | 5.6% | 1,329,625 | Added |
| Nextech Invest Ltd. | $10.5M | 4.0% | 952,400 | Unchanged |
| Millennium Management LLC | $10.0M | 3.9% | 909,279 | Trimmed |
| Tetragon Partners GP Ltd | $8.4M | 3.2% | 764,256 | Added |
| Soleus Capital Management, L.P. | $6.9M | 2.7% | 630,000 | New |
| Balyasny Asset Management L.P. | $6.7M | 2.6% | 610,980 | New |
| 5AM Venture Management, LLC | $5.2M | 2.0% | 476,200 | Unchanged |
| Great Point Partners LLC | $4.9M | 1.9% | 450,000 | Trimmed |
| Morgan Stanley | $4.4M | 1.7% | 403,172 | Added |
| Ameriprise Financial Inc | $4.1M | 1.6% | 370,052 | New |
| Jane Street Group, LLC | $4.1M | 1.6% | 369,151 | Added |
| ADAR1 Capital Management, LLC | $3.7M | 1.4% | 338,373 | Added |
| SummitTX Capital, L.P. | $3.6M | 1.4% | 326,648 | New |
| Schonfeld Strategic Advisors LLC | $3.0M | 1.1% | 269,348 | New |
| UBS Group AG | $2.7M | 1.0% | 243,152 | Trimmed |
| Ishara Investments LP | $2.4M | 0.2% | 55,350 | Trimmed |
| BlackRock, Inc. | $2.4M | 0.9% | 219,917 | Added |
| Bank of Montreal | $2.2M | 0.9% | 201,734 | Trimmed |
| Boothbay Fund Management, LLC | $2.2M | 0.8% | 198,347 | Trimmed |
| Propel Bio Management, LLC | $2.1M | 0.8% | 191,733 | New |
| Susquehanna International Group, LLP | $2.0M | 0.8% | 184,519 | Added |
Share of 13F holdings is each fund's shares as a share of the 23,584,105 SLN shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Soleus Capital Management, L.P. New+$6.9M
- Balyasny Asset Management L.P. New+$6.7M
- Nantahala Capital Management, LLC Added+$6.0M
- Siren, L.L.C. Added+$4.4M
- Ameriprise Financial Inc New+$4.1M
- Morgan Stanley Added+$3.7M
- SummitTX Capital, L.P. New+$3.6M
- Schonfeld Strategic Advisors LLC New+$3.0M
- Jane Street Group, LLC Added+$2.9M
- Propel Bio Management, LLC New+$2.1M
Biggest sellers in Q2 2026
- Great Point Partners LLC Trimmed-$6.3M
- Ishara Investments LP Trimmed-$3.7M
- SG Americas Securities, LLC Trimmed-$3.0M
- Millennium Management LLC Trimmed-$1.8M
- Jones Hill Capital LP Sold out-$1.6M
- Marshall Wace, LLP Trimmed-$1.1M
- Seven Fleet Capital Management LP Trimmed-$1.1M
- Point72 Asset Management, L.P. Sold out-$631K
- Boothbay Fund Management, LLC Trimmed-$118K
- Raymond James Financial Inc Trimmed-$110K
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $60.0M and sold $19.7M; 22 added and 18 trimmed.
Schedule 13D and 13G filings on SLN
Owners of more than 5% must file within days, so these can be newer than the 13F data.
- 2026-11-05FMR LLC SCHEDULE 13G filed by Silence Therapeutics PlcSchedule 13G
- 2025-02-15Redmile Group, LLC SCHEDULE 13G filed by Silence Therapeutics PlcSchedule 13G
Questions about SLN ownership
- Who owns SLN stock?
- 72 institutional investment managers reported SLN positions in their Form 13F filings for Q2 2026, holding 23,584,105 shares worth $253M in total. Siren, L.L.C. reported the largest position.
- Are funds buying or selling SLN?
- In Q2 2026, 20 managers opened new SLN positions, 22 added, 18 trimmed and 4 sold out. Managers that filed in both quarters added a net 3,674,610 shares.
- How current is this SLN institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to SLN by CUSIP. Options are left out. SLN news and filings · SLN insider trades · Top funds