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Neuronetics, Inc.

STIM
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001227636

In the last 90 days, Neuronetics, Inc. insiders filed 2 open-market purchases and 0 sales; 86 institutions reported holding it in 13F filings for Q2 2026, worth $48.4M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Neuronetics, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
86
−12 vs. Q1 2026
Shares held
37.2M
−4.43M (−10.6%) vs. Q1 2026
Total value
$48.4M
−$12.0M (−19.8%) vs. Q1 2026
New holders
16
29 more added
Sold out
28
25 more reduced

1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting STIM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 86 institutions
Q1 2021: 83 institutionsQ2 2021: 105 institutionsQ3 2021: 97 institutionsQ4 2021: 80 institutionsQ1 2022: 83 institutionsQ2 2022: 77 institutionsQ3 2022: 76 institutionsQ4 2022: 82 institutionsQ1 2023: 74 institutionsQ2 2023: 69 institutionsQ3 2023: 56 institutionsQ4 2023: 66 institutionsQ1 2024: 66 institutionsQ2 2024: 67 institutionsQ3 2024: 48 institutionsQ4 2024: 45 institutionsQ1 2025: 102 institutionsQ2 2025: 90 institutionsQ3 2025: 100 institutionsQ4 2025: 95 institutionsQ1 2026: 99 institutionsQ2 2026: 86 institutions
Value heldQ2 2026: $48.4M
Q1 2021: $256.4MQ2 2021: $373.7MQ3 2021: $139.9MQ4 2021: $89.2MQ1 2022: $59.9MQ2 2022: $56.4MQ3 2022: $54.4MQ4 2022: $120.4MQ1 2023: $55.2MQ2 2023: $38.6MQ3 2023: $23.4MQ4 2023: $46.2MQ1 2024: $84.3MQ2 2024: $31.5MQ3 2024: $8.05MQ4 2024: $12.2MQ1 2025: $63.2MQ2 2025: $63.2MQ3 2025: $58.2MQ4 2025: $58.3MQ1 2026: $60.4MQ2 2026: $48.4M
Institutions holding STIM and their total value by quarter
QuarterHoldersValue
Q2 202686$48.4M
Q1 202699$60.4M
Q4 202595$58.3M
Q3 2025100$58.2M
Q2 202590$63.2M
Q1 2025102$63.2M
Q4 202445$12.2M
Q3 202448$8.05M
Q2 202467$31.5M
Q1 202466$84.3M
Q4 202366$46.2M
Q3 202356$23.4M
Q2 202369$38.6M
Q1 202374$55.2M
Q4 202282$120.4M
Q3 202276$54.4M
Q2 202277$56.4M
Q1 202283$59.9M
Q4 202180$89.2M
Q3 202197$139.9M
Q2 2021105$373.7M
Q1 202183$256.4M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Neuronetics, Inc.; share changes are against Q1 2026.

Institutions holding STIM in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Madryn Asset Management, LP18,540,488$24.1M65.29%+64,595+0.3%Added
UBS Group AG2,279,099$2.96M0.00%−591,499−20.6%Reduced
Wexford Capital LP2,002,625$2.60M0.36%+1,301,664+185.7%Added
FourWorld Capital Management LLC1,744,142$2.27M2.62%+254,820+17.1%Added
Lane Generational LLC1,633,372$2.12M1.86%−141,252−8.0%Reduced
Vanguard Capital Management LLC1,507,097$1.96M0.00%−540,878−26.4%Reduced
Masters Capital Management LLC1,000,000$1.30M0.18%00.0%Unchanged
AdvisorShares Investments LLC742,795$965.6K0.12%+125,602+20.4%Added
Ikarian Capital, LLC701,182$911.5K0.15%00.0%Unchanged
BlackRock, Inc.596,622$775.6K0.00%−1,721,915−74.3%Reduced
HighTower Advisors, LLC563,741$732.9K0.00%+1,371+0.2%Added
Marshall Wace, LLP485,692$631.4K0.00%+485,692New
Geode Capital Management, LLC458,474$596.2K0.00%−500,515−52.2%Reduced
Citadel Advisors LLC421,903$548.5K0.00%+345,306+450.8%Added
Dauntless Investment Group, LLC369,187$479.9K0.83%+99,979+37.1%Added
State Street Corp290,299$377.4K0.00%−552,248−65.5%Reduced
Centiva Capital, LP285,913$371.7K0.01%+116,594+68.9%Added
Vanguard Fiduciary Trust Co264,734$344.2K0.00%+6,700+2.6%Added
Goldman Sachs Group Inc264,088$343.3K0.00%+30,498+13.1%Added
JBF Capital, Inc.233,166$303.1K0.04%00.0%Unchanged
XTX Topco Ltd220,323$286.4K0.00%+74,168+50.7%Added
Millennium Management LLC199,450$259.3K0.00%+199,450New
Boothbay Fund Management, LLC189,263$246.0K0.00%00.0%Unchanged
Susquehanna International Group, LLP185,753$241.5K0.00%+99,272+114.8%Added
Jane Street Group, LLC185,250$240.8K0.00%+168,676+1,017.7%Added
BNP Paribas Arbitrage, SA148,815$193.5K0.00%+140,520+1,694.0%Added
Tudor Investment Corp Et Al124,861$162.3K0.00%+124,861New
AQR Capital Management LLC117,822$153.2K0.00%+1,142+1.0%Added
ADAR1 Capital Management, LLC100,000$130.0K0.01%00.0%Unchanged
Bridgeway Capital Management, LLC95,205$123.8K0.00%00.0%Unchanged
Squarepoint Ops LLC94,616$123.0K0.00%+57,000+151.5%Added
Northern Trust Corp89,138$115.9K0.00%−188,240−67.9%Reduced
HRT Financial LP88,710$115.0K0.00%−11,910−11.8%Reduced
Gamco Investors, Inc. Et Al79,200$103.0K0.00%00.0%Unchanged
Invesco Ltd.68,340$88.8K0.00%−4,042−5.6%Reduced
Bank of America Corp68,195$88.7K0.00%−29,900−30.5%Reduced
Morgan Stanley62,893$81.8K0.00%+22,820+56.9%Added
Engineers Gate Manager LP57,175$74.3K0.00%+57,175New
VestGen Advisors, LLC50,279$65.4K0.00%−50,134−49.9%Reduced
Cruiser Capital Advisors, LLC48,900$63.6K0.04%00.0%Unchanged
Caitong International Asset Management Co., Ltd41,320$53.7K0.01%+41,320New
SRS Capital Advisors, Inc.39,843$51.8K0.00%+720+1.8%Added
HSBC Holdings PLC37,847$50.0K0.00%+37,847New
Gabelli Funds LLC38,000$49.4K0.00%00.0%Unchanged
Quadrature Capital Ltd30,856$40.1K0.00%+30,856New
Virtu Financial LLC29,582$38.0K0.00%+29,582New
David J Yvars Group27,550$35.8K0.02%+7,250+35.7%Added
Price T Rowe Associates Inc24,246$32.0K0.00%−12,615−34.2%Reduced
State of Wyoming23,482$30.5K0.00%+23,482New
Qube Research & Technologies Ltd23,211$30.2K0.00%+23,211New
Fielder Capital Group LLC22,903$29.8K0.01%+46+0.2%Added
Miracle Mile Advisors, LLC19,851$25.8K0.00%+19,851New
Tower Research Capital LLC (TRC)19,602$25.5K0.00%+6,109+45.3%Added
Group One Trading, L.P.17,669$23.0K0.00%−5,467−23.6%Reduced
Vanguard Global Advisers, LLC16,453$21.4K0.00%00.0%Unchanged
Aigen Investment Management, LP16,246$21.1K0.01%+16,246New
Simplex Trading, LLC14,861$19.3K0.00%+788+5.6%Added
IMC-Chicago, LLC14,566$18.9K0.00%−12,728−46.6%Reduced
StoneX Group Inc.12,092$18.6K0.00%+12,092New
Pathstone Holdings, LLC14,247$18.5K0.00%−17,984−55.8%Reduced
Bank of Montreal14,109$18.3K0.00%+14,109New
Axq Capital, LP11,024$14.3K0.00%−1,284−10.4%Reduced
Royal Bank of Canada11,158$14.0K0.00%−84,690−88.4%Reduced
Russell Investments Group, Ltd.8,839$11.5K0.00%+5,582+171.4%Added
Barclays PLC5,839$7.59K0.00%−665−10.2%Reduced
FMR LLC5,061$6.58K0.00%−19,985−79.8%Reduced
MCF Advisors LLC3,564$4.63K0.00%00.0%Unchanged
Citigroup Inc2,619$3.40K0.00%−54,009−95.4%Reduced
Rockefeller Capital Management L.P.1,500$1.95K0.00%00.0%Unchanged
Essential Partners LLC835$1.09K0.00%−3,305−79.8%Reduced
Advisor Group Holdings, Inc.795$1.03K0.00%00.0%Unchanged
JPMorgan Chase & Co748$1.02K0.00%−20,681−96.5%Reduced
UMA Financial Services, Inc.775$1.01K0.00%00.0%Unchanged
GAMMA Investing LLC681$8850.00%−537−44.1%Reduced
EverSource Wealth Advisors, LLC606$7880.00%+55+10.0%Added
Allied Private Wealth LLC470$7230.00%+470New
SBI Securities Co., Ltd.458$5950.00%+5+1.1%Added
Farther Finance Advisors, LLC226$2940.00%+167+283.1%Added
Allworth Financial LP169$2200.00%+146+634.8%Added
Wells Fargo & Company150$1950.00%−13,502−98.9%Reduced
The PNC Financial Services Group, Inc.124$1610.00%−113−47.7%Reduced
Transamerica Financial Advisors, Inc.119$1540.00%+119New
Federation des caisses Desjardins du Quebec104$1340.00%00.0%Unchanged
Rothschild Investment LLC83$1080.00%+28+50.9%Added
TD Waterhouse Canada Inc.59$800.00%00.0%Unchanged
IFP Advisors, Inc12$160.00%+9+300.0%Added
Balyasny Asset Management LLC0$00.00%−2,743,768−100.0%Sold out
Vanguard Portfolio Management LLC0$00.00%−221,170−100.0%Sold out
Massar Capital Management, LP0$00.00%−221,000−100.0%Sold out
Nuveen, LLC0$00.00%−123,089−100.0%Sold out
Citizens Financial Group Inc0$00.00%−110,953−100.0%Sold out
Charles Schwab Investment Management Inc0$00.00%−82,123−100.0%Sold out
Bank of New York Mellon Corp0$00.00%−78,605−100.0%Sold out
SEI Investments Co0$00.00%−76,046−100.0%Sold out
Deutsche Bank AG0$00.00%−45,793−100.0%Sold out
Rhumbline Advisers0$00.00%−41,843−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−31,751−100.0%Sold out
Alliancebernstein L.P.0$00.00%−28,800−100.0%Sold out
Fermata Advisors, LLC0$00.00%−19,849−100.0%Sold out
Mirae Asset Global ETFs Holdings Ltd.0$00.00%−17,586−100.0%Sold out