STIM · NASDAQ · Medical - Devices

Neuronetics (STIM)

Sells NeuroStar TMS systems and operates Greenbrook mental-health treatment centers.

$2.90
After hours−0.00 (−0.17%)
At close$2.91(+1.93%)

13F · 13D/G · Form 4

Institutions53.48%37.22M shares
92 holders · as of Jun 30, 2026
Insiders24.43%17.00M shares
14 holders · as of Aug 24, 2026
Other22.09%15.37M shares
remainder

69.59M company shares as of Sep 19, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

Two share counts disagree (76.20M in the company's Sep 22, 2026 report, 69.59M elsewhere); stakes use the report.

13F · 13D/G · Form 4

HolderStakeSharesDate
Madryn Asset Management, LPInstitution
26.64%18.54Mas of Jun 30, 2026
Jorey ChernettInsider10 percent owner
15.24%10.60Mfiled Aug 24, 2026
Parian Ultreia LPInstitution
6.96%4.84Mfiled Mar 17, 2026
Point72 Asset Management, L.P.Institution
5.49%3.82Mfiled Aug 14, 2026
UBS Group AGInstitution
3.28%2.28Mas of Jun 30, 2026
Wexford Capital LPInstitution
2.88%2.00Mas of Jun 30, 2026
Fourworld Capital Management LLCInstitution
2.51%1.74Mas of Jun 30, 2026
Lane Generational LLCInstitution
2.35%1.63Mas of Jun 30, 2026
Keith J. SullivanInsiderother: Former Officer & Director
2.29%1.59Mfiled Mar 24, 2026
Vanguard Capital Management LLCInstitution
2.17%1.51Mas of Jun 30, 2026
Masters Capital Management LLCInstitution
1.44%1.00Mas of Jun 30, 2026
William Andrew MacanInsiderofficer: EVP, CLO and CS
1.29%897,270filed Mar 24, 2026
Steven PfanstielInsiderofficer: Former EVP, CFO and Treasurer
1.20%836,643filed May 21, 2026
Advisorshares Investments LLCInstitution
1.07%742,795as of Jun 30, 2026
Ikarian Capital, LLCInstitution
1.01%701,182as of Jun 30, 2026
Robert CascellaInsiderdirector
0.90%625,017filed May 29, 2026
BlackRock, Inc.Institution
0.86%596,622as of Jun 30, 2026
Hightower Advisors, LLCInstitution
0.81%563,741as of Jun 30, 2026
Sasha Cucuz1Insiderdirector
0.74%516,084filed May 29, 2026
Nir NaorInsiderofficer: EVP, CFO & Treasurer
0.72%500,000filed Jul 23, 2026
Marshall Wace, LLPInstitution
0.70%485,692as of Jun 30, 2026
Geode Capital Management, LLCInstitution
0.66%458,474as of Jun 30, 2026
Citadel Advisors LLCInstitution
0.61%421,903as of Jun 30, 2026
Stephen FurlongInsiderofficer: EVP, CFO and Treasurer
0.59%410,053filed May 14, 2025
Glenn P. MuirInsiderdirector
0.58%401,816filed May 29, 2026
  1. Sasha Cucuz reports a block also reported by Vanguard Capital Management LLC; it is counted once, under Vanguard Capital Management LLC.

13F, as of Jun 30, 2026

92 holders · 37.22M shares · 18 new positions · 46 increased · 26 reduced · 29 closed

HolderShares% outstandingChg q/qFiled
Madryn Asset Management, LP18.54M26.64%+64.6KAug 19, 2026
UBS Group AG2.28M3.28%−591.5KAug 13, 2026
Wexford Capital LP2.00M2.88%+1.30MAug 14, 2026
Fourworld Capital Management LLC1.74M2.51%+254.8KAug 14, 2026
Lane Generational LLC1.63M2.35%−141.3KAug 13, 2026
Vanguard Capital Management LLC1.51M2.17%−540.9KAug 13, 2026
Masters Capital Management LLC1.00M1.44%0Aug 14, 2026
Advisorshares Investments LLC742.8K1.07%+125.6KAug 11, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Madryn Asset Management, LP30.30%20.74M13DMar 4, 2026
Chernett Jorey13.92%10.60M13DAug 24, 2026
Parian Ultreia LP7.00%4.84M13GMar 17, 2026
Point72 Asset Management, L.P.5.00%3.82M13GAug 14, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 13, 2026
Jorey Chernett10 percent owner
Sale100$5.000
Aug 14, 2026
Jorey Chernett10 percent owner
Purchase14,000$3.1610,602,988
Jul 14, 2026
Jorey Chernett10 percent owner
Purchase35,000$1.7810,588,988
Mar 19, 2026
Steven Pfanstielofficer: Former EVP, CFO and Treasurer
Sale · 2 lots25,000$1.34828,781
May 19, 2026
Jorey Chernett10 percent owner
Purchase100,000$1.1710,553,988
May 12, 2026
Jorey Chernett10 percent owner
Purchase475,000$1.3410,453,988
Apr 20, 2026
Jorey Chernett10 percent owner
Purchase100,000$1.589,878,988
Apr 21, 2026
Jorey Chernett10 percent owner
Purchase100,000$1.519,978,988
Mar 27, 2026
Jorey Chernett10 percent owner
Purchase500,000$1.359,393,276
Mar 30, 2026
Jorey Chernett10 percent owner
Purchase385,442$1.259,778,988

House and Senate disclosures

Not reported.