SLN | SILENCE THER SP ADR | Owners

S&P 500$7,666.45
+0.19%
2m
DOW 30$50,926.56
+0.04%
2m
NASDAQ 100$30,501.56
+0.31%
2m
Russell 2000$279.02
+0.41%
2m
Russell 1000$416.97
+0.20%
2m
S&P 400$3,633.16
+1.03%
2m
S&P 600$1,665.65
+0.65%
2m

SILENCE THER SP ADR (SLN)

NASDAQ

$10.66-$0.06 (-0.51%)

Price as of Oct 02, 2026 4:28 PM EDT

$665.7M
Market Cap
105.96%
1-Year Change
Biotechnology
Industry

Top Holders

Institutional

Mutual Funds

Holder	Ownership %	Shares Held	Change (Shares, %)	Report Date
SIREN, L.L.C.	7.01%	3.3M	+400,000 (+12.08%)	Jun 30, 2026
TCG CROSSOVER MANAGEMENT, LLC	6.42%	3.0M	0 (0.00%)	Jun 30, 2026
REDMILE GROUP, LLC	4.58%	2.2M	0 (0.00%)	Jun 30, 2026
NANTAHALA CAPITAL MANAGEMENT, LLC	2.85%	1.3M	-800,000 (-59.40%)	Jun 30, 2026
CITADEL ADVISORS LLC	2.81%	1.3M	+94,818 (+7.13%)	Jun 30, 2026
NEXTECH INVEST LTD.	2.02%	952,400	0 (0.00%)	Dec 31, 2024
NEXTECH INVEST, LTD.	2.02%	952,400	0 (0.00%)	Jun 30, 2026

Holder	Ownership %	Shares Held	Change (Shares, %)	Report Date
Viking Mutual Funds	2.12%	1.0M	0 (0.00%)	Jul 31, 2026
MUTUAL FUND SERIES TRUST	1.35%	640,000	0 (0.00%)	Jun 30, 2026
FIDELITY ADVISOR SERIES VII	1.02%	482,088	+482,088 (+100.00%)	Jul 31, 2026
iSHARES TRUST	0.39%	185,777	0 (0.00%)	Jul 31, 2026
ALGER FUNDS	0.22%	105,679	+105,679 (+100.00%)	Jul 31, 2026
Tema ETF Trust	0.16%	76,769	0 (0.00%)	May 31, 2026
ALGER INSTITUTIONAL FUNDS	0.09%	41,292	+41,292 (+100.00%)	Jul 31, 2026

Current Ownership Distribution

Institutions375.8M (93.29%)
Mutual Funds16.7M (4.16%)
Insiders10.3M (2.55%)
Other0 (0.00%)

Insider Transactions

2.55% (10.3M)
Current InsiderOwnership (%, shares)
1
Number of InsiderBuying (last 12 months)
$0.00
Amount of InsiderBuying (last 12 months)
1
Number of InsiderSelling (last 12 months)
$0.00
Amount of InsiderSelling (last 12 months)

Insider Name & Title	Type	Date	Transaction Value	Shares	Share Price	Shares After Transactions
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	2.8M	$0.00	7.5M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	100,000	$0.00	7.4M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	50,000	$0.00	7.3M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	3,500	$0.00	7.3M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	800,000	$0.00	6.5M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	382,000	$0.00	6.2M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	470,820	$0.00	5.7M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	605,174	$0.00	5.1M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	120,000	$0.00	5.0M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	60,000	$0.00	4.9M
Griffiths Richard Ian	Sell	Aug 10, 2026	$0.00	100,000	$0.00	4.8M
Griffiths Richard Ian	Sell	Jul 06, 2026	$0.00	865,112	$0.00	10.3M
Griffiths Richard Ian	Sell	Jul 02, 2026	$0.00	50,082	$0.00	11.1M
Griffiths Richard Ian	Sell	Jul 01, 2026	$0.00	79,180	$0.00	11.2M
Griffiths Richard Ian	Sell	Jul 01, 2026	$0.00	50,000	$0.00	11.2M
Griffiths Richard Ian	Sell	Jun 30, 2026	$0.00	169,928	$0.00	11.3M
Griffiths Richard Ian	Sell	Jun 29, 2026	$0.00	330,072	$0.00	11.5M
MCINERNEY TIMOTHY	Award	Jan 02, 2026	$0.00	90,000	$0.00	90,000
Romano Steven J. EVP and Chief R&D Officer	Award	Jan 02, 2026	$0.00	300,000	$0.00	300,000
Ede-Golightly James	Award	Jan 02, 2026	$0.00	90,000	$0.00	90,000
Lemus David	Award	Jan 02, 2026	$0.00	90,000	$0.00	90,000
HELLUMS RHONDA LYNETTE Chief Financial Officer	Award	Jan 02, 2026	$0.00	375,000	$0.00	375,000
Ede-Golightly James	Award	Dec 22, 2025	$0.00	90,000	$0.00	90,000
Ross Iain Interim PEO	Award	Dec 18, 2025	$0.00	900,000	$0.00	900,000
Griffiths Richard Ian	Sell	Oct 27, 2025	$0.00	2,000	$0.00	11.8M
Griffiths Richard Ian	Buy	Oct 27, 2025	$0.00	2,000	$0.00	11.8M
Griffiths Richard Ian	Sell	Aug 03, 2025	$0.00	20,000	$0.00	11.8M
Griffiths Richard Ian	Buy	Aug 03, 2025	$0.00	20,000	$0.00	11.8M
Griffiths Richard Ian	Buy	Jul 30, 2025	$0.00	8,923	$0.00	11.8M
Griffiths Richard Ian	Buy	Jul 29, 2025	$0.00	14,559	$0.00	11.8M