Neuronetics, Inc.
STIM- Exchange
- Nasdaq
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001227636
In the last 90 days, Neuronetics, Inc. insiders filed 3 open-market purchases and 1 sale; 86 institutions reported holding it in 13F filings for Q2 2026, worth $48.4M in total; no superinvestor holds it.
13F holders, Q3 2026
Institutional positions in Neuronetics, Inc. as of Sep 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
Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.
- Institutional holders
- 58
- 0 vs. Q2 2026
- Shares held
- 32.4M
- +1.57M (+5.1%) vs. Q2 2026
- Total value
- $75.9M
- +$35.8M (+89.2%) vs. Q2 2026
- New holders
- 13
- 15 more added
- Sold out
- 13
- 19 more reduced
28 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 86 | $48.4M |
| Q1 2026 | 99 | $60.4M |
| Q4 2025 | 95 | $58.3M |
| Q3 2025 | 99 | $57.8M |
| Q2 2025 | 90 | $63.1M |
| Q1 2025 | 102 | $63.2M |
| Q4 2024 | 45 | $12.2M |
| Q3 2024 | 48 | $8.05M |
| Q2 2024 | 67 | $31.5M |
| Q1 2024 | 66 | $84.2M |
| Q4 2023 | 66 | $46.2M |
| Q3 2023 | 56 | $23.4M |
| Q2 2023 | 69 | $38.6M |
| Q1 2023 | 74 | $53.6M |
| Q4 2022 | 82 | $120.4M |
| Q3 2022 | 76 | $54.4M |
| Q2 2022 | 77 | $56.4M |
| Q1 2022 | 83 | $59.9M |
| Q4 2021 | 80 | $89.0M |
| Q3 2021 | 97 | $139.9M |
| Q2 2021 | 105 | $373.7M |
| Q1 2021 | 83 | $256.4M |
Institutions, Q3 2026
Shares, value and share of portfolio for each institution holding Neuronetics, Inc.; share changes are against Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Madryn Asset Management, LP | 18,540,488 | $43.4M | 78.12% | 00.0% | Unchanged |
| Wexford Capital LP | 2,002,625 | $4.69M | 0.64% | 00.0% | Unchanged |
| Marshall Wace, LLP | 1,551,840 | $3.63M | 0.00% | +1,066,148+219.5% | Added |
| Vanguard Capital Management LLC | 1,527,373 | $3.57M | 0.00% | +20,276+1.3% | Added |
| Lane Generational LLC | 1,262,179 | $2.95M | 2.67% | −371,193−22.7% | Reduced |
| HighTower Advisors, LLC | 1,101,502 | $2.58M | 0.00% | +537,761+95.4% | Added |
| AdvisorShares Investments LLC | 924,380 | $2.16M | 0.27% | +181,585+24.4% | Added |
| Morgan Stanley | 753,323 | $1.76M | 0.00% | +690,430+1,097.8% | Added |
| UBS Group AG | 573,630 | $1.34M | 0.00% | −1,705,469−74.8% | Reduced |
| Geode Capital Management, LLC | 480,396 | $1.12M | 0.00% | +21,922+4.8% | Added |
| BlackRock, Inc. | 452,618 | $1.06M | 0.00% | −144,004−24.1% | Reduced |
| Squarepoint Ops LLC | 435,951 | $1.02M | 0.00% | +341,335+360.8% | Added |
| Renaissance Technologies LLC | 424,400 | $993.1K | 0.00% | +424,400 | New |
| State Street Corp | 302,699 | $708.3K | 0.00% | +12,400+4.3% | Added |
| HRT Financial LP | 251,721 | $589.0K | 0.00% | +163,011+183.8% | Added |
| Jane Street Group, LLC | 239,475 | $560.4K | 0.00% | +54,225+29.3% | Added |
| Vanguard Fiduciary Trust Co | 239,190 | $559.7K | 0.00% | −25,544−9.6% | Reduced |
| Quadrature Capital Ltd | 214,351 | $501.6K | 0.00% | +183,495+594.7% | Added |
| B. Riley Financial, Inc. | 200,000 | $468.0K | 0.25% | +200,000 | New |
| Bank of New York Mellon Corp | 176,317 | $412.6K | 0.00% | +176,317 | New |
| Empowered Funds, LLC | 90,305 | $211.3K | 0.00% | +90,305 | New |
| Gamco Investors, Inc. Et Al | 79,200 | $185.3K | 0.00% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 75,000 | $175.5K | 0.00% | +75,000 | New |
| Centiva Capital, LP | 63,184 | $147.9K | 0.01% | −222,729−77.9% | Reduced |
| VestGen Advisors, LLC | 50,200 | $117.5K | 0.00% | −79−0.2% | Reduced |
| Invesco Ltd. | 42,228 | $98.8K | 0.00% | −26,112−38.2% | Reduced |
| SRS Capital Advisors, Inc. | 39,417 | $92.2K | 0.00% | −426−1.1% | Reduced |
| T3 Companies, LLC | 37,600 | $88.0K | 0.09% | +37,600 | New |
| Jump Financial, LLC | 29,389 | $68.8K | 0.00% | +29,389 | New |
| Barclays PLC | 25,904 | $60.6K | 0.00% | +20,065+343.6% | Added |
| Caitong International Asset Management Co., Ltd | 24,495 | $57.3K | 0.01% | −16,825−40.7% | Reduced |
| Fielder Capital Group LLC | 22,822 | $53.4K | 0.01% | −81−0.4% | Reduced |
| Axq Capital, LP | 21,942 | $51.3K | 0.01% | +10,918+99.0% | Added |
| State of Wyoming | 21,342 | $49.9K | 0.00% | −2,140−9.1% | Reduced |
| Miracle Mile Advisors, LLC | 19,851 | $46.5K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 16,453 | $38.5K | 0.00% | 00.0% | Unchanged |
| Perkins Capital Management Inc | 16,000 | $37.4K | 0.03% | +16,000 | New |
| Winton Group Ltd | 15,200 | $35.6K | 0.00% | +15,200 | New |
| Hudson Bay Capital Management LP | 11,030 | $25.8K | 0.00% | +11,030 | New |
| Russell Investments Group, Ltd. | 10,803 | $25.3K | 0.00% | +1,964+22.2% | Added |
| Persistent Asset Partners Ltd | 10,444 | $24.4K | 0.01% | +10,444 | New |
| IMC-Chicago, LLC | 10,316 | $24.1K | 0.00% | −4,250−29.2% | Reduced |
| Canton Hathaway, LLC | 10,000 | $23.4K | 0.00% | +10,000 | New |
| JPMorgan Chase & Co | 4,097 | $9.67K | 0.00% | +3,349+447.7% | Added |
| FMR LLC | 3,451 | $8.07K | 0.00% | −1,610−31.8% | Reduced |
| Jones Financial Companies LLLP | 2,329 | $6.38K | 0.00% | +2,329 | New |
| BNP Paribas Arbitrage, SA | 2,494 | $5.84K | 0.00% | −146,321−98.3% | Reduced |
| Citigroup Inc | 2,313 | $5.41K | 0.00% | −306−11.7% | Reduced |
| Advisor Group Holdings, Inc. | 795 | $1.87K | 0.00% | 00.0% | Unchanged |
| UMA Financial Services, Inc. | 775 | $1.81K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 681 | $1.59K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 453 | $1.06K | 0.00% | −5−1.1% | Reduced |
| Transamerica Financial Advisors, Inc. | 119 | $278 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 169 | $220 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 94 | $220 | 0.00% | −30−24.2% | Reduced |
| TD Waterhouse Canada Inc. | 59 | $131 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 7 | $16 | 0.00% | −5−41.7% | Reduced |
| EverSource Wealth Advisors, LLC | 6 | $14 | 0.00% | −600−99.0% | Reduced |
| Gabelli Funds LLC | 0 | $0 | 0.00% | −38,000−100.0% | Sold out |
| David J Yvars Group | 0 | $0 | 0.00% | −27,550−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −23,211−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −17,669−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −14,861−100.0% | Sold out |
| StoneX Group Inc. | 0 | $0 | 0.00% | −12,092−100.0% | Sold out |
| Pathstone Holdings, LLC | 0 | $0 | 0.00% | −14,247−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −14,109−100.0% | Sold out |
| MCF Advisors LLC | 0 | $0 | 0.00% | −3,564−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Essential Partners LLC | 0 | $0 | 0.00% | −835−100.0% | Sold out |
| Farther Finance Advisors, LLC | 0 | $0 | 0.00% | −226−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −83−100.0% | Sold out |
| FourWorld Capital Management LLC | – | – | – | – | Not filed |
| Masters Capital Management LLC | – | – | – | – | Not filed |
| Ikarian Capital, LLC | – | – | – | – | Not filed |
| Citadel Advisors LLC | – | – | – | – | Not filed |
| Dauntless Investment Group, LLC | – | – | – | – | Not filed |
| Goldman Sachs Group Inc | – | – | – | – | Not filed |
| JBF Capital, Inc. | – | – | – | – | Not filed |
| XTX Topco Ltd | – | – | – | – | Not filed |
| Millennium Management LLC | – | – | – | – | Not filed |
| Boothbay Fund Management, LLC | – | – | – | – | Not filed |
| Susquehanna International Group, LLP | – | – | – | – | Not filed |
| Tudor Investment Corp Et Al | – | – | – | – | Not filed |
| AQR Capital Management LLC | – | – | – | – | Not filed |
| ADAR1 Capital Management, LLC | – | – | – | – | Not filed |
| Bridgeway Capital Management, LLC | – | – | – | – | Not filed |
| Northern Trust Corp | – | – | – | – | Not filed |
| Bank of America Corp | – | – | – | – | Not filed |
| Engineers Gate Manager LP | – | – | – | – | Not filed |
| Cruiser Capital Advisors, LLC | – | – | – | – | Not filed |
| HSBC Holdings PLC | – | – | – | – | Not filed |
| Virtu Financial LLC | – | – | – | – | Not filed |
| Price T Rowe Associates Inc | – | – | – | – | Not filed |
| Tower Research Capital LLC (TRC) | – | – | – | – | Not filed |
| Aigen Investment Management, LP | – | – | – | – | Not filed |
| Royal Bank of Canada | – | – | – | – | Not filed |
| Allied Private Wealth LLC | – | – | – | – | Not filed |
| Wells Fargo & Company | – | – | – | – | Not filed |
| Federation des caisses Desjardins du Quebec | – | – | – | – | Not filed |