STIM

Neuronetics, Inc.

Surgical & Medical Instruments & ApparatusNasdaqNon-accelerated filer<br>Smaller reporting company

Total Trades

83

Buys

23

Sells

54

Largest Trade

N/A

Insiders

7

Institutional Funds

69

Inst. Value

$1M+

Activist Filings

30

Insider Trades

InsiderTitleTypeValueSharesPriceDate
MACAN WILLIAM ANDREWEVP, CLO and CSSELL<$1K609$1.34Mar 6, 2026
MACAN WILLIAM ANDREWEVP, CLO and CSSELL$1K–$15K3K$1.35Feb 27, 2026
Sullivan Keith JPresident and CEOSELL$1K–$15K8K$1.35Feb 27, 2026
Sullivan Keith JPresident and CEOSELL$50K–$100K34K$1.65Feb 18, 2026
MACAN WILLIAM ANDREWEVP, CLO and CSSELL$15K–$50K14K$1.65Feb 18, 2026
MACAN WILLIAM ANDREWEVP, CLO and CSSELL$1K–$15K3K$1.55Feb 12, 2026
Sullivan Keith JPresident and CEOSELL$50K–$100K41K$1.55Feb 12, 2026
Furlong StephenEVPSELL$500K+200K$4.27May 14, 2025
Sullivan Keith JPresident and CEOSELL$100K–$500K50K$4.55Feb 20, 2025
Furlong StephenEVPSELL$1K–$15K1K$0.82Oct 10, 2024
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$1K–$15K2K$0.82Oct 10, 2024
MUIR GLENN PDirectorBUY$15K–$50K25K$0.85Aug 30, 2024
MUIR GLENN PDirectorBUY$15K–$50K25K$1.00Aug 21, 2024
CASCELLA ROBERTDirectorBUY$15K–$50K39K$1.07Aug 19, 2024
CASCELLA ROBERTDirectorBUY$50K–$100K70K$0.83Aug 16, 2024
MUIR GLENN PDirectorBUY$15K–$50K25K$0.75Aug 16, 2024
CASCELLA ROBERTDirectorBUY$100K–$500K50K$2.05Jun 6, 2024
MACAN WILLIAM ANDREWEVP, GC, CCO and CSGRANTN/A15KMar 1, 2024
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$50K–$100K28K$3.11Mar 1, 2024
Furlong StephenEVPSELL$50K–$100K25K$3.30Feb 29, 2024
Sullivan Keith JPresident and CEOSELL$50K–$100K20K$3.30Feb 28, 2024
Sullivan Keith JPresident and CEOSELL$100K–$500K42K$3.23Feb 26, 2024
Sullivan Keith JPresident and CEOSELL$50K–$100K24K$2.96Feb 22, 2024
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$50K–$100K16K$3.38Feb 16, 2024
Furlong StephenEVPSELL$50K–$100K15K$3.51Feb 13, 2024
MACAN WILLIAM ANDREWEVP, GC, CCO and CSGRANTN/A90KFeb 7, 2024
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$15K–$50K5K$3.39Feb 7, 2024
Furlong StephenEVPSELL$15K–$50K6K$3.39Feb 7, 2024
Furlong StephenEVPGRANTN/A100KFeb 7, 2024
Sullivan Keith JPresident and CEOSELL$50K–$100K20K$3.08Jan 12, 2024
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$50K–$100K35K$2.49Dec 22, 2023
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$1K–$15K1K$1.16Oct 10, 2023
Furlong StephenEVPSELL$1K–$15K1K$1.16Oct 10, 2023
Sullivan Keith JPresident and CEOSELL$1K–$15K7K$2.04Jul 25, 2023
Sullivan Keith JPresident and CEOSELL$15K–$50K13K$2.06Jul 21, 2023
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$1K–$15K3K$2.13Jul 13, 2023
BAKEWELL JOHN KDirectorSELL$15K–$50K14K$2.70May 26, 2023
BAKEWELL JOHN KDirectorGRANTN/A36KMay 26, 2023
CANNELL CAPITAL LLC10% OwnerBUY$100K–$500K60K$2.90Mar 20, 2023
CANNELL CAPITAL LLC10% OwnerBUY$100K–$500K137K$2.97Mar 15, 2023
CANNELL CAPITAL LLC10% OwnerSELL$15K–$50K8K$4.71Mar 9, 2023
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$50K–$100K13K$4.59Mar 9, 2023
Furlong StephenEVPSELL$50K–$100K11K$4.59Mar 9, 2023
MACAN WILLIAM ANDREWEVP, GC, CCO and CSSELL$100K–$500K23K$5.90Feb 17, 2023
Furlong StephenCFOSELL$100K–$500K26K$5.74Feb 16, 2023
Sullivan Keith JPresident and CEOSELL$100K–$500K39K$5.52Feb 15, 2023
MACAN WILLIAM ANDREWSVP and General Co…GRANTN/A90KFeb 9, 2023
MACAN WILLIAM ANDREWSVP and General Co…SELL$15K–$50K5K$5.99Feb 9, 2023
Furlong StephenCFOGRANTN/A100KFeb 9, 2023
Furlong StephenCFOSELL$15K–$50K6K$5.99Feb 9, 2023
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Institutional Ownership

13F filings as of Dec 31, 2025 · 69 funds holding

Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

MADRYN ASSET MANAGEMENT, LP

SC 13D/A · Mar 4, 2026

30.3%

20.7M shares

MADRYN ASSET MANAGEMENT, LP

SC 13D/A · Aug 12, 2025

31.4%

20.7M shares

Kent Lake PR LLC

SC 13G/A · Feb 14, 2025

0.0%

0 shares

MADRYN ASSET MANAGEMENT, LP 2

SC 13D · Dec 18, 2024

43.6%

2.4B shares

Kent Lake PR LLC

SC 13G · Nov 14, 2024

6.9%

2.1M shares

J. Carlo Cannell

SC 13G/A · Nov 14, 2024

4.3%

1.3M shares

Parian Global Management LP

SC 13G/A · Nov 14, 2024

0.0%

0 shares

0.1%

38K shares

Archon Capital Management LLC

SC 13G/A · Aug 14, 2024

3.0%

922K shares

Kent Lake Partners LP

SC 13G · Jun 28, 2024

5.0%

1.5M shares

5.2%

1.5M shares

Kent Lake Partners LP

SC 13G/A · Feb 14, 2024

3.9%

1.1M shares

J. Carlo Cannell

SC 13G/A · Feb 14, 2024

9.6%

2.8M shares

Archon Capital Management LLC

SC 13G/A · Feb 13, 2024

8.8%

2.5M shares

Kent Lake Partners LP

SC 13G · Sep 22, 2023

5.5%

1.6M shares

J. Carlo Cannell

SC 13G · Sep 11, 2023

9.8%

2.8M shares

Archon Capital Management LLC

SC 13G/A · Aug 22, 2023

10.0%

2.9M shares

Cannell Capital LLC 94-3366999

SC 13D/A · Aug 18, 2023

8.4%

2.4M shares

Cannell Capital LLC 94-3366999

SC 13D/A · Jun 9, 2023

10.0%

2.8M shares

Cannell Capital LLC 94-3366999

SC 13D/A · Mar 22, 2023

11.0%

3.1M shares

Parian Global Management LP

SC 13G/A · Feb 13, 2023

2.8%

760K shares

Archon Capital Management LLC

SC 13G/A · Feb 13, 2023

6.7%

1.8M shares

BlackRock, Inc.

SC 13G · Jul 8, 2022

1.6%

421K shares

Cannell Capital LLC 94-3366999

SC 13D · Jun 22, 2022

12.9%

3.5M shares

J. Carlo Cannell

SC 13G · Feb 14, 2022

10.0%

2.6M shares

Archon Capital Management LLC

SC 13G/A · Feb 14, 2022

7.0%

1.9M shares

Kent Lake Partners LP

SC 13G/A · Feb 14, 2022

0.0%

0 shares

InterWest Partners VIII, LP

SC 13G/A · Feb 14, 2022

0.0%

0 shares

0.0%

0 shares

0.0%

0 shares

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