SEC Form 4 · Updated Daily

STIM

— NEURONETICS, INC. Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

Financials Ownership

Current Reporting Owners

Owner	Role	Shares Owned	As Of	Last Activity
MADRYN SELECT ADVISORS, LP	10%+ Owner	17,333,542	2025-08-08	S
MADRYN SELECT ADVISORS GP, LLC	10%+ Owner	17,333,542	2025-08-08	S
Madryn Select Opportunities, LP	10%+ Owner	17,104,530	2026-06-15	J
Madryn Asset Management, LP	10%+ Owner	17,104,530	2026-06-15	J
Madryn Health Partners II, LP	10%+ Owner	17,104,530	2026-06-15	J
MADRYN HEALTH PARTNERS II (CAYMAN MASTER), LP	10%+ Owner	17,104,530	2026-06-15	J
MADRYN HEALTH ADVISORS II, LP	10%+ Owner	17,104,530	2026-06-15	J
MADRYN HEALTH ADVISORS GP II, LLC	10%+ Owner	17,104,530	2026-06-15	J
Chernett Jorey	10%+ Owner	10,602,988	2026-08-14	P
CANNELL CAPITAL LLC	10%+ Owner	2,841,223	2023-06-01	J
Investor Growth Capital, LLC	10%+ Owner	1,794,228	2018-07-02	C
Sullivan Keith J	Director · Officer	1,590,924	2026-03-19	S
New Leaf Venture Management II, L.L.C.	10%+ Owner	1,543,115	2018-07-02	C
New Leaf Ventures II, L.P.	10%+ Owner	1,543,115	2018-07-02	C
New Leaf Venture Associates II, L.P.	10%+ Owner	1,543,115	2018-07-02	C
Cucuz Sasha	Director	1,542,798	2026-05-28	A
REUVERS DANIEL L.	Officer	1,500,000	2026-03-23	A
GE Ventures Ltd	10%+ Owner	1,308,041	2018-07-02	C
GENERAL ELECTRIC CO	10%+ Owner	1,308,041	2018-07-02	C
MACAN WILLIAM ANDREW	Officer	897,270	2026-03-19	S
Pfanstiel Steven	Officer	836,643	2026-03-19	S
CASCELLA ROBERT	Director	625,017	2026-05-28	A
Naor Nir	Officer	500,000	2026-07-23	A
Furlong Stephen	Officer	416,593	2025-05-12	S
MUIR GLENN P	Director	401,816	2026-05-28	A
Farley Brian E	Director	265,748	2020-08-05	A
CONLEY SHERYL L	Director	251,716	2026-05-28	A
Thatcher Christopher	Director · Officer	249,811	2020-03-04	M
Rosengarten Megan	Director	170,890	2026-05-28	A
Harper Gregory	Officer	162,554	2021-03-09	S
Anderson Cory	Officer	150,000	2026-07-01	—
Guthrie Daniel	Officer	144,180	2020-05-22	F
JAEGER WILFRED E	Director	138,563	2023-05-25	A
BAKEWELL JOHN K	Director	114,352	2023-05-25	A
Amin Avinash	Director	69,566	2026-06-15	J
Shook Bruce Joseph	Director	68,847	2022-05-26	A
Tropsha Yelena	Officer	65,987	2020-03-10	F
Capper Joseph H	Officer	43,147	2023-05-25	A
Blanchard Cheryl R	Director · Officer	34,437	2020-05-26	A
CAMPE STEPHEN M	Director	32,472	2020-01-02	A
Donato Peter	Officer	29,019	2019-05-13	S
BROWN FRANCIS X III	Officer	19,968	2026-05-05	—
HUNT RONALD	10%+ Owner · Director	847	2019-04-01	A

Recent Filings

Date	Owner	Activity	Shares	Price	Owned After
2026-08-14	Chernett Jorey	Open-market buy	14,000	$3.16	10,602,988
2026-08-13	Chernett Jorey	Open-market sale (derivative)	100	$3.21	0
2026-07-23	Naor Nir	Grant / award	500,000	$0.00	500,000
2026-07-14	Chernett Jorey	Open-market buy	35,000	$1.78	10,588,988
2026-07-01	Anderson Cory	—	—	—	55,003
2026-07-01	Anderson Cory	—	—	—	136,933
2026-07-01	Anderson Cory	—	—	—	3,334
2026-07-01	Anderson Cory	—	—	—	150,000
2026-07-01	Anderson Cory	—	—	—	13,336
2026-07-01	Anderson Cory	—	—	—	53,205
2026-07-01	Anderson Cory	—	—	—	5,001
2026-06-15	Madryn Select Opportunities, LP	J	4,634	$0.00	2,269,073
2026-06-15	MADRYN HEALTH ADVISORS GP II, LLC	J	4,634	$0.00	2,269,073
2026-06-15	Madryn Select Opportunities, LP	J	34,932	$0.00	17,104,530
2026-06-15	MADRYN HEALTH ADVISORS GP II, LLC	J	34,932	$0.00	17,104,530
2026-06-15	MADRYN HEALTH ADVISORS GP II, LLC	J	2,934	$0.00	1,435,958
2026-06-15	Madryn Select Opportunities, LP	J	2,934	$0.00	1,435,958
2026-06-15	MADRYN HEALTH ADVISORS II, LP	J	4,634	$0.00	2,269,073
2026-06-15	MADRYN HEALTH ADVISORS II, LP	J	34,932	$0.00	17,104,530
2026-06-15	MADRYN HEALTH ADVISORS II, LP	J	2,934	$0.00	1,435,958
2026-06-15	MADRYN HEALTH PARTNERS II (CAYMAN MASTER), LP	J	4,634	$0.00	2,269,073
2026-06-15	MADRYN HEALTH PARTNERS II (CAYMAN MASTER), LP	J	34,932	$0.00	17,104,530
2026-06-15	MADRYN HEALTH PARTNERS II (CAYMAN MASTER), LP	J	2,934	$0.00	1,435,958
2026-06-15	Madryn Health Partners II, LP	J	4,634	$0.00	2,269,073
2026-06-15	Madryn Health Partners II, LP	J	34,932	$0.00	17,104,530
2026-06-15	Madryn Health Partners II, LP	J	2,934	$0.00	1,435,958
2026-06-15	Madryn Asset Management, LP	J	4,634	$0.00	2,269,073
2026-06-15	Madryn Asset Management, LP	J	34,932	$0.00	17,104,530
2026-06-15	Madryn Asset Management, LP	J	2,934	$0.00	1,435,958
2026-06-15	Amin Avinash	J	4,634	$0.00	30,000
2026-06-15	Amin Avinash	J	34,932	$0.00	34,634
2026-06-15	Amin Avinash	J	2,934	$0.00	69,566
2026-05-28	Amin Avinash	Grant / award	30,000	$0.00	72,500
2026-05-28	CASCELLA ROBERT	Grant / award	36,250	$0.00	625,017
2026-05-28	CONLEY SHERYL L	Grant / award	30,000	$0.00	251,716
2026-05-28	Cucuz Sasha	Grant / award	30,000	$0.00	1,542,798
2026-05-28	MUIR GLENN P	Grant / award	30,000	$0.00	401,816
2026-05-28	Rosengarten Megan	Grant / award	30,000	$0.00	170,890
2026-05-28	MADRYN HEALTH ADVISORS GP II, LLC	J	3,271	$0.00	2,264,439
2026-05-28	Madryn Select Opportunities, LP	J	3,271	$0.00	2,264,439

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.