NeuroneticsSTIM
13F holders, Q1 2026 (March 31)99holders +4
23new positions
21sold out
3famous investors
$1.45avg. 13F price*
At the end of Q1 2026, 99 institutions reported holding Neuronetics Inc. (STIM) in their 13F filings, up 4 from Q4 2025. 23 opened new positions and 21 sold out. The largest holders were Madryn Asset Management, LP ($26.8M), UBS Group AG ($4.2M) and Balyasny Asset Management L.P. ($4.0M). 3 famous investors held it, including Mario Gabelli (0.0% of GAMCO Investors's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Neuronetics Inc.
- CUSIP
- 64131A105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 23 | $1.4M |
| Exits | 21 | $2.2M |
All 13F filers, Q4 2025 → Q1 2026: 3,128,747 shares bought and 3,528,345 shares sold, net −399,598 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 99 holders
| Madryn Asset Management, LP | 78.50% | No change | 18,475,893 | $26.8M |
| UBS Group AG | 0.00% | Add +10.1% | 2,870,598 | $4.2M |
| Balyasny Asset Management L.P. | 0.01% | Add +7.5% | 2,743,768 | $4.0M |
| BlackRock, Inc. | 0.00% | Reduce -1.5% | 2,318,537 | $3.4M |
| Vanguard Capital Management LLC | 0.00% | — | 2,047,975 | $3.0M |
| Lane Generational LLC | 2.05% | Add +4.1% | 1,774,624 | $2.6M |
| FourWorld Capital Management LLC | 1.22% | Add +59.9% | 1,489,322 | $2.2M |
| Masters Capital Management LLC | 0.21% | No change | 1,000,000 | $1.4M |
| Geode Capital Management, LLC | 0.00% | Add +7.5% | 958,989 | $1.4M |
| State Street Corp. | 0.00% | Add +44.2% | 842,547 | $1.2M |
| Ikarian Capital, LLC | 0.15% | No change | 701,182 | $1.0M |
| Wexford Capital LP | 0.17% | Add +8.7% | 700,961 | $1.0M |
| AdvisorShares Investments LLC | 0.16% | Add +127.8% | 617,193 | $895K |
| HighTower Advisors, LLC | 0.00% | Reduce -0.3% | 562,370 | $815K |
| Northern Trust Corp. | 0.00% | Reduce -0.4% | 277,378 | $402K |
| Dauntless Investment Group, LLC | 1.10% | Add +67.3% | 269,208 | $390K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 258,034 | $374K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -29.6% | 233,590 | $339K |
| JBF Capital, Inc. | 0.05% | No change | 233,166 | $338K |
| Vanguard Portfolio Management LLC | 0.00% | — | 221,170 | $321K |
| Massar Capital Management, LP | 0.06% | No change | 221,000 | $320K |
| Boothbay Fund Management, LLC | 0.01% | Add +8.2% | 189,263 | $274K |
| Centiva Capital, LP | 0.01% | New | 169,319 | $246K |
| XTX Topco Ltd | 0.00% | Reduce -53.5% | 146,155 | $212K |
| Nuveen, LLC | 0.00% | Add +161.7% | 123,089 | $178K |
| AQR Capital Management | 0.00% | New | 116,680 | $169K |
| Citizens Financial Group Inc. | 0.00% | New | 110,953 | $161K |
| ADAR1 Capital Management, LLC | 0.01% | New | 100,000 | $145K |
| HRT Financial LP | 0.00% | New | 100,620 | $145K |
| Bank of America Corp. | 0.00% | Add +6.1% | 98,095 | $142K |
| Royal Bank of Canada | 0.00% | Add +102.9% | 95,848 | $140K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 95,205 | $138K |
| VestGen Advisors, LLC | 0.00% | New | 100,413 | $128K |
| Susquehanna International Group, LLP | 0.00% | Reduce -73.1% | 86,481 | $125K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -9.9% | 82,123 | $119K |
| GAMCO Investors | 0.00% | No change | 79,200 | $115K |
| Bank of New York Mellon Corp | 0.00% | No change | 78,605 | $114K |
| Citadel Advisors | 0.00% | New | 76,597 | $111K |
| Sei Investments Co. | 0.00% | New | 76,046 | $110K |
| Invesco Ltd. | 0.00% | Add +22.8% | 72,382 | $105K |
| Citigroup Inc. | 0.00% | Add +4898.1% | 56,628 | $82K |
| Cruiser Capital Advisors, LLC | 0.03% | No change | 48,900 | $71K |
| Deutsche Bank AG | 0.00% | No change | 45,793 | $66K |
| Rhumbline Advisers | 0.00% | Reduce -13.6% | 41,843 | $61K |
| Morgan Stanley | 0.00% | Reduce -65.6% | 40,073 | $58K |
| Arax Advisory Partners | 0.00% | New | 39,123 | $57K |
| Gabelli Funds LLC | 0.00% | No change | 38,000 | $55K |
| Squarepoint Ops LLC | 0.00% | Add +62.1% | 37,616 | $55K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 36,861 | $54K |
| Pathstone Holdings, LLC | 0.00% | No change | 32,231 | $47K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 31,751 | $46K |
| Alliancebernstein L.P. | 0.00% | No change | 28,800 | $40K |
| IMC-Chicago, LLC | 0.00% | New | 27,294 | $40K |
| FMR LLC | 0.00% | Reduce -68.0% | 25,046 | $36K |
| Group One Trading LLC | 0.00% | Reduce -52.1% | 23,136 | $34K |
| Fielder Capital Group LLC | 0.01% | Add +0.3% | 22,857 | $33K |
| David J Yvars Group | 0.02% | Reduce -35.0% | 20,300 | $29K |
| Fermata Advisors, LLC | 0.01% | Add +0.0% | 19,849 | $29K |
| JPMorgan Chase & Co. | 0.00% | Add +29.3% | 21,429 | $27K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.3% | 17,586 | $26K |
| Jane Street Group, LLC | 0.00% | Reduce -98.4% | 16,574 | $24K |
| Vanguard Global Advisers, LLC | 0.00% | — | 16,453 | $24K |
| ExodusPoint Capital Management, LP | 0.00% | Reduce -80.4% | 14,203 | $21K |
| Simplex Trading, LLC | 0.00% | Reduce -67.3% | 14,073 | $20K |
| Wells Fargo & Company | 0.00% | Reduce -68.5% | 13,652 | $20K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +67.3% | 13,493 | $20K |
| Axq Capital, LP | 0.00% | New | 12,308 | $18K |
| Presidio Capital Management, LLC | 0.00% | Reduce -70.3% | 11,127 | $16K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 9,727 | $14K |
| BNP Paribas Financial Markets | 0.00% | Reduce -3.5% | 8,295 | $12K |
| Barclays PLC | 0.00% | Reduce -89.4% | 6,504 | $9K |
| New York State Common Retirement Fund | 0.00% | No change | 5,800 | $8K |
| Essential Partners LLC | 0.00% | New | 4,140 | $6K |
| Cwm, LLC | 0.00% | Add +4613.6% | 3,818 | $6K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 3,692 | $5K |
| MCF Advisors LLC | 0.00% | No change | 3,564 | $5K |
| Legal & General Group Plc | 0.00% | Reduce -18.3% | 3,294 | $5K |
| Russell Investments Group, Ltd. | 0.00% | Add +1.6% | 3,257 | $5K |
| Addison Advisors LLC | 0.00% | No change | 3,000 | $4K |
| California State Teachers Retirement System | 0.00% | Reduce -11.9% | 2,133 | $3K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 1,500 | $2K |
| GAMMA Investing LLC | 0.00% | Add +78.8% | 1,218 | $2K |
| Innovative Asset Advisors Group, LLC | 0.00% | — | 1,000 | $1K |
| Osaic Holdings, Inc. | 0.00% | No change | 795 | $1K |
| Physician Wealth Advisors, Inc. | 0.00% | New | 775 | $1K |
| EverSource Wealth Advisors, LLC | 0.00% | New | 551 | $799 |
| SBI Securities Co., Ltd. | 0.00% | No change | 453 | $657 |
| PNC Financial Services Group, Inc. | 0.00% | Add +4640.0% | 237 | $344 |
| Sterling Capital Management LLC | 0.00% | No change | 235 | $341 |
| Federation des caisses Desjardins du Quebec | 0.00% | Reduce -59.1% | 104 | $151 |
| Root Financial Partners, LLC | 0.00% | New | 77 | $112 |
| Farther Finance Advisors, LLC | 0.00% | New | 59 | $88 |
| TD Waterhouse Canada Inc. | 0.00% | New | 59 | $87 |
| Rothschild Investment LLC | 0.00% | New | 55 | $80 |
| MAI Capital Management | 0.00% | Reduce -90.7% | 28 | $41 |
| Allworth Financial LP | 0.00% | New | 23 | $34 |
| True Wealth Design, LLC | 0.00% | New | 18 | $27 |
| SJS Investment Consulting Inc. | 0.00% | New | 17 | $25 |
| IFP Advisors, Inc | 0.00% | New | 3 | $4 |
"% of holder's portfolio" is STIM's weight in each manager's 13F, not the share of Neuronetics Inc. the manager owns.