AI summary pending
View Full Filing (SEC EDGAR)Silence Therapeutics Plc-adr
$13.42-0.2%
+$36.3M
Net Activity
+14.74% total shares
Institutions Holding
72
Popularity Rank
#5307
Avg Weight
0.22%
Total Value
$246.0M
Market Cap
$1.9B
72 institutions currently hold SLN, with 42 net buyers and 25 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
25
Net Buying Institutions
42
Top 5 by Value
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Across its top 20 institutional holders, SLN's holder base skews toward low-concentration, high-turnover investors on average (avg. concentration score 22/100, avg. turnover score 55/100).
SLN ranks #5307 out of 37501 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
SLN is a disclosed holding of Ken Griffin (Citadel Advisors LLC), one of the tracked superinvestors on AlphaSMO — it makes up 0.0% of that fund's own 13F portfolio.
72 institutions disclose a position in SLN, but none treat it as a major bet — even M28 Capital Management LP, its most concentrated holder, allocates just 2.4% of its own portfolio to it.
Ken Griffin has added to its SLN position for two straight quarters, increasing it by $13.0M to reach $14.6M today.
SG Americas Securities, LLC has trimmed its SLN position for two straight quarters, cutting it by $1.4M while still holding $132.0K.
SLN is down 0.2% today, but institutions show net buying of $36.3M this quarter — a divergence between today's price move and the underlying institutional flow.
SLN reported a net loss of $60.0M over the trailing twelve months.
+$63.3M
Total Buy Value
$33.5M
Total Sell Value
42
Net Buyers
25
Net Sellers
SLN
Q2 2026
Top 5 Institutional Movers
+$21.0M
+$17.3M
+$12.4M
+$8.4M
+$8.0M
SLN does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
3
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Richard Griffiths | 13D/A | 2026-08-13 | 8.0% |
| Invus Public Equities, L.P. | 13G/A | 2026-08-13 | 7.0% |
| Richard Griffiths | 13D/A | 2026-07-08 | 21.7% |
4
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)Silence Therapeutics plc (SLN) filed an 8-K on August 10, 2026 to furnish the press release covering its financial and business results for the second quarter ended June 30, 2026. The release is attached as Exhibit 99.1. The 8-K marks the information as “furnished” rather than “filed,” so it is not deemed incorporated into the company’s other SEC filings and does not carry liability under Section 18 of the Exchange Act. The excerpt itself contains no actual financial figures.
View Full Filing (SEC EDGAR)On August 10, 2026, Silence Therapeutics announced positive topline results from the Phase 2 SANRECO trial of divesiran in polycythemia vera (PV). The company also hosted a conference call and webcast the same morning at 8:00 a.m. ET, with the press release and presentation attached to this 8-K.
View Full Filing (SEC EDGAR)Silence Therapeutics disclosed a separation agreement with former executive Craig Tooman, who left the company by mutual consent in December 2025. The agreement provides salary continuation of $655,000, a lump sum severance of $250,000, a bonus payment of $283,746, legal fee reimbursement of $40,000, healthcare premium reimbursement of $46,896, and extended option exercise periods. Total cash payments exceed $1.27 million.
View Full Filing (SEC EDGAR)82686Q101
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
5,144
Total reported value
$670.7B
Held by 5144 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
5,074
Total reported value
$1.1T
Held by 5074 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,923
Total reported value
$485.0B
Held by 4923 institutions — one of the most-tracked stocks on AlphaSMO
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