Neuronetics Ownership | Who Owns Neuronetics?
Neuronetics Ownership Summary
Neuronetics is owned by 42.61% institutional investors, 19.13% insiders, and 38.26% retail investors. Madryn asset management, lp is the largest institutional shareholder, holding 27.45% of STIM shares. First Eagle US Small Cap Strategy is the top mutual fund, with 3.14% of its assets in Neuronetics shares.
STIM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Neuronetics | 42.61% | 19.13% | 38.26% |
| Sector | Healthcare Stocks | 232.52% | 10.72% | -143.24% |
| Industry | Diagnostics & Research Stocks | 35.38% | 11.00% | 53.62% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Madryn asset management, lp | 18.48M | 27.45% | $25.50B |
| Kent lake capital | 1.74M | 5.90% | $3.13M |
| Ubs group | 2.61M | 3.87% | $3.60M |
| Vanguard group | 2.58M | 3.84% | $3.56M |
| Blackrock funding, inc. /de | 2.35M | 3.50% | $3.25M |
| Lane generational | 1.71M | 2.53% | $2.35M |
| Balyasny asset management | 1.51M | 2.28% | $5.27M |
| Wexford capital lp | 1.18M | 1.78% | $3.21M |
| Jane street group | 1.02M | 1.51% | $1.40M |
| Masters capital management | 1.00M | 1.51% | $2.73M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Madryn asset management, lp | 18.48M | 73.43% | $25.50B |
| Fourworld capital management | 568.00K | 2.45% | $1.55M |
| Lane generational | 1.71M | 2.13% | $2.35M |
| Kent lake capital | 1.74M | 1.41% | $3.13M |
| Wexford capital lp | 1.18M | 0.46% | $3.21M |
| Ikarian capital | 905.72K | 0.25% | $2.47M |
| Caitong asset management | 46.00K | 0.17% | $63.48K |
| Masters capital management | 1.00M | 0.10% | $2.73M |
| Tradewinds, llc. | 138.49K | 0.09% | $378.06K |
| Massar capital management, lp | 240.00K | 0.09% | $655.20K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Madryn asset management, lp | 18.48M | 73.43% | 18.48M |
| Lane generational | 1.71M | 2.13% | 1.71M |
| Marshall wace, llp | 925.11K | 0.00% | 881.87K |
| Jane street group | 1.02M | 0.00% | 783.22K |
| Kent lake capital | 1.74M | 1.41% | 716.95K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Archon capital management | - | - | -2.47M |
| Cannell capital | - | - | -1.31M |
| First washington | - | - | -1.27M |
| Silvercrest asset management group | - | - | -1.19M |
| First eagle investment management | - | - | -1.04M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Madryn asset management, lp | 18.48M | 73.43% | 18.48M | $25.50B |
| Lane generational | 1.71M | 2.13% | 1.71M | $2.35M |
| Renaissance | 474.90K | 0.00% | 474.90K | $655.36K |
| Jbf capital | 233.17K | 0.05% | 233.17K | $321.77K |
| Aristides capital | 136.40K | 0.03% | 136.40K | $188.23K |
Sold Out
| Holder | Change |
|---|---|
| Atwood & palmer | -100.00 |
| Citadel advisors | -200.00 |
| Lazard asset management | -750.00 |
| Point72 (difc) | -2.07K |
| Fny investment advisers | -3.00K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | 34 | -68.81% | 28,683,018 | 35.09% | 42 | 4.14% | 15 | -75.81% | 8 | -57.89% |
| Sep 30, 2025 | 34 | -62.22% | 7,700,797 | -54.66% | 11 | 1.77% | 18 | -62.50% | 6 | -71.43% |
| Jun 30, 2025 | 95 | -6.86% | 18,046,162 | 8.61% | 27 | 3.73% | 50 | -32.43% | 24 | 118.18% |
| Mar 31, 2025 | 103 | 128.89% | 17,014,943 | 125.35% | 27 | 4.45% | 75 | 275.00% | 11 | 10.00% |
| Dec 31, 2024 | 12 | -74.47% | 905,122 | -91.45% | 2 | 0.24% | 4 | -73.33% | 3 | -80.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| First Eagle US Small Cap Strategy | 951.41K | 3.14% | 231.85K |
| Vanguard Total Stock Mkt Idx Inv | 1.77M | 2.67% | -39.00K |
| iShares Russell 2000 ETF | 920.99K | 1.39% | - |
| Vanguard US Total Market Shares ETF | 849.50K | 1.29% | - |
| Silvercrest U.S. Small Cap Growth | 368.14K | 1.22% | - |
| Vanguard Institutional Extnd Mkt Idx Tr | 425.90K | 0.64% | -194.07K |
| Fidelity Small Cap Index | 362.77K | 0.55% | 362.77K |
| iShares Russell 2000 Growth ETF | 314.96K | 0.48% | - |
| LoCorr Dynamic Opportunity I | 105.53K | 0.35% | -36.35K |
| Fidelity Extended Market Index | 207.06K | 0.31% | 1.52K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Feb 10, 2026 | MACAN WILLIAM ANDREW | EVP, CLO and CS | Sell | $5.40K |
| Feb 10, 2026 | Sullivan Keith J | President and CEO | Sell | $63.51K |
| Aug 08, 2025 | Madryn Asset Management, LP | - | Sell | $717.24K |
| Aug 08, 2025 | Madryn Asset Management, LP | - | Sell | $10.88M |
| Aug 08, 2025 | Madryn Asset Management, LP | - | Sell | $1.42M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | 2 |
| 2025 Q4 | - | - |
| 2025 Q3 | - | 3 |
| 2025 Q2 | - | 2 |
| 2025 Q1 | - | 11 |
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