NeuroneticsSTIM
13F holders, Q4 2025 (December 31)95holders −4
14new positions
17sold out
3famous investors
$1.38avg. 13F price*
At the end of Q4 2025, 95 institutions reported holding Neuronetics Inc. (STIM) in their 13F filings, down 4 from Q3 2025. 14 opened new positions and 17 sold out. The largest holders were Madryn Asset Management, LP ($25.5M), UBS Group AG ($3.6M) and Vanguard Group Inc. ($3.6M). 3 famous investors held it, including Mario Gabelli (0.0% of GAMCO Investors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Neuronetics Inc.
- CUSIP
- 64131A105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 14 | $4.1M |
| Exits | 17 | $1.9M |
All 13F filers, Q3 2025 → Q4 2025: 6,292,215 shares bought and 3,686,112 shares sold, net +2,606,103 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 95 holders
| Madryn Asset Management, LP | 73.43% | — | 18,475,893 | $25.5M |
| UBS Group AG | 0.00% | Add +20.4% | 2,607,047 | $3.6M |
| Vanguard Group Inc. | 0.00% | Reduce -8.8% | 2,582,382 | $3.6M |
| Balyasny Asset Management L.P. | 0.01% | Add +40.1% | 2,552,404 | $3.5M |
| BlackRock, Inc. | 0.00% | Add +2.2% | 2,353,751 | $3.2M |
| Lane Generational LLC | 2.13% | New | 1,705,197 | $2.4M |
| Jane Street Group, LLC | 0.00% | Add +333.8% | 1,017,862 | $1.4M |
| Masters Capital Management LLC | 0.19% | No change | 1,000,000 | $1.4M |
| FourWorld Capital Management LLC | 1.21% | Add +64.0% | 931,250 | $1.3M |
| Geode Capital Management, LLC | 0.00% | Add +1.7% | 891,733 | $1.2M |
| Ikarian Capital, LLC | 0.13% | Reduce -22.6% | 701,182 | $968K |
| Wexford Capital LP | 0.23% | Reduce -45.2% | 644,951 | $890K |
| State Street Corp. | 0.00% | Reduce -0.6% | 584,167 | $806K |
| HighTower Advisors, LLC | 0.00% | Reduce -2.2% | 564,306 | $779K |
| Renaissance Technologies | 0.00% | New | 474,900 | $655K |
| Goldman Sachs Group Inc. | 0.00% | Add +49.6% | 331,954 | $458K |
| Susquehanna International Group, LLP | 0.00% | Add +45.8% | 321,561 | $444K |
| XTX Topco Ltd | 0.01% | Add +992.6% | 314,194 | $434K |
| Marshall Wace, LLP | 0.00% | Reduce -69.1% | 286,045 | $395K |
| Northern Trust Corp. | 0.00% | Add +0.7% | 278,400 | $384K |
| AdvisorShares Investments LLC | 0.06% | Add +42.5% | 270,916 | $374K |
| JBF Capital, Inc. | 0.05% | New | 233,166 | $322K |
| Massar Capital Management, LP | 0.06% | Reduce -7.9% | 221,000 | $305K |
| Two Sigma Investments, LP | 0.00% | Reduce -40.6% | 198,745 | $274K |
| Boothbay Fund Management, LLC | 0.01% | Reduce -37.0% | 175,000 | $242K |
| Two Sigma Advisers, LP | 0.00% | Add +62.2% | 169,000 | $233K |
| Dauntless Investment Group, LLC | 0.82% | New | 160,927 | $222K |
| Aristides Capital LLC | 0.07% | New | 136,400 | $188K |
| Morgan Stanley | 0.00% | Reduce -75.5% | 116,431 | $161K |
| Qube Research & Technologies Ltd | 0.00% | New | 108,208 | $149K |
| Bridgeway Capital Management, LLC | 0.00% | Add +35.6% | 95,205 | $131K |
| Caption Management, LLC | 0.01% | Add +571.4% | 92,501 | $128K |
| Bank of America Corp. | 0.00% | Reduce -19.4% | 92,421 | $128K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -14.1% | 91,129 | $126K |
| GAMCO Investors | 0.00% | No change | 79,200 | $109K |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.3% | 78,605 | $108K |
| FMR LLC | 0.00% | Add +66.3% | 78,234 | $108K |
| ExodusPoint Capital Management, LP | 0.00% | No change | 72,384 | $100K |
| Caitong International Asset Management Co., Ltd | 0.02% | Add +2667.0% | 69,756 | $96K |
| Barclays PLC | 0.00% | Add +19.2% | 61,606 | $85K |
| Invesco Ltd. | 0.00% | Add +80.0% | 58,940 | $81K |
| Cruiser Capital Advisors, LLC | 0.06% | Reduce -2.2% | 48,900 | $67K |
| Rhumbline Advisers | 0.00% | Reduce -12.9% | 48,407 | $67K |
| Group One Trading LLC | 0.00% | Reduce -49.5% | 48,336 | $67K |
| Royal Bank of Canada | 0.00% | Add +17.7% | 47,233 | $65K |
| Nuveen, LLC | 0.00% | No change | 47,043 | $65K |
| Deutsche Bank AG | 0.00% | Add +4.4% | 45,793 | $63K |
| Wells Fargo & Company | 0.00% | Add +79.5% | 43,291 | $60K |
| Simplex Trading, LLC | 0.00% | Reduce -70.2% | 43,085 | $59K |
| BlueCrest Capital Management Ltd | 0.00% | New | 40,000 | $55K |
| Gabelli Funds LLC | 0.00% | No change | 38,000 | $52K |
| Presidio Capital Management, LLC | 0.02% | Add +217.0% | 37,436 | $52K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 36,861 | $51K |
| Tradewinds, LLC. | 0.01% | Reduce -73.7% | 36,437 | $50K |
| Pathstone Holdings, LLC | 0.00% | New | 32,231 | $44K |
| National Bank of Canada | 0.00% | Add +0.4% | 32,000 | $44K |
| David J Yvars Group | 0.02% | Add +22.1% | 31,230 | $43K |
| Alliancebernstein L.P. | 0.00% | No change | 28,800 | $40K |
| Abel Hall, LLC | 0.01% | New | 28,605 | $39K |
| Squarepoint Ops LLC | 0.00% | Reduce -62.9% | 23,206 | $32K |
| Fielder Capital Group LLC | 0.01% | No change | 22,797 | $31K |
| Bluefin Capital Management, LLC | 0.01% | Reduce -51.0% | 20,937 | $29K |
| Fermata Advisors, LLC | 0.01% | Add +38.4% | 19,843 | $27K |
| Verition Fund Management LLC | 0.00% | No change | 18,048 | $25K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.8% | 17,184 | $24K |
| Intech Investment Management LLC | 0.00% | Reduce -5.8% | 17,010 | $23K |
| StoneX Group Inc. | 0.00% | New | 16,917 | $23K |
| JPMorgan Chase & Co. | 0.00% | Add +12.7% | 16,576 | $23K |
| Millennium Management | 0.00% | Reduce -97.2% | 10,817 | $15K |
| Engineers Gate Manager LP | 0.00% | New | 10,661 | $15K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 9,727 | $13K |
| BNP Paribas Financial Markets | 0.00% | Add +18.1% | 8,598 | $12K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +68.5% | 8,067 | $11K |
| New York State Common Retirement Fund | 0.00% | No change | 5,800 | $8K |
| FreeGulliver LLC | 0.00% | New | 5,000 | $7K |
| Legal & General Group Plc | 0.00% | No change | 4,030 | $6K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 3,692 | $5K |
| MCF Advisors LLC | 0.00% | No change | 3,564 | $5K |
| Russell Investments Group, Ltd. | 0.00% | Add +7.1% | 3,207 | $4K |
| Addison Advisors LLC | 0.00% | No change | 3,000 | $4K |
| California State Teachers Retirement System | 0.00% | Add +7.3% | 2,421 | $3K |
| Woodbridge Co Ltd | 0.00% | No change | 1,838 | $3K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 1,500 | $2K |
| Amalgamated Bank | 0.00% | Add +0.3% | 1,239 | $2K |
| Citigroup Inc. | 0.00% | Reduce -91.5% | 1,133 | $2K |
| Osaic Holdings, Inc. | 0.00% | Reduce -1.1% | 795 | $1K |
| GAMMA Investing LLC | 0.00% | New | 681 | $940 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -0.4% | 453 | $625 |
| MAI Capital Management | 0.00% | No change | 300 | $414 |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 254 | $350 |
| Sterling Capital Management LLC | 0.00% | Add +167.1% | 235 | $324 |
| United Financial Planning Group LLC | 0.00% | New | 100 | $138 |
| CIBC Private Wealth Group LLC | 0.00% | No change | 20 | $28 |
| PNC Financial Services Group, Inc. | 0.00% | No change | 5 | $7 |
| Cwm, LLC | 0.00% | Reduce -16.5% | 81 | $0 |
"% of holder's portfolio" is STIM's weight in each manager's 13F, not the share of Neuronetics Inc. the manager owns.