STIM Neuronetics, Inc.
Neuronetics, Inc. (STIM) Institutional Ownership
What the institutions did with STIM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Madryn Asset Management, LP | 18.5M | 49.8% |
| UBS Group AG | 2.3M | 6.1% |
| WEXFORD CAPITAL LP | 2.0M | 5.4% |
| FourWorld Capital Management LLC | 1.7M | 4.7% |
| Lane Generational LLC | 1.6M | 4.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | 4.0% |
| MASTERS CAPITAL MANAGEMENT LLC | 1.0M | 2.7% |
| AdvisorShares Investments LLC | 742.8K | 2.0% |
| Ikarian Capital, LLC | 701.2K | 1.9% |
| BlackRock, Inc. | 596.6K | 1.6% |
| HighTower Advisors, LLC | 563.7K | 1.5% |
| MARSHALL WACE, LLP | 485.7K | 1.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 458.5K | 1.2% |
| CITADEL ADVISORS LLC | 421.9K | 1.1% |
| Dauntless Investment Group, LLC | 369.2K | 1.0% |
| STATE STREET CORP | 290.3K | 0.8% |
| Centiva Capital, LP | 285.9K | 0.8% |
| VANGUARD FIDUCIARY TRUST CO | 264.7K | 0.7% |
| GOLDMAN SACHS GROUP INC | 264.1K | 0.7% |
| JBF Capital, Inc. | 233.2K | 0.6% |
| XTX Topco Ltd | 220.3K | 0.6% |
| MILLENNIUM MANAGEMENT LLC | 199.5K | 0.5% |
| BOOTHBAY FUND MANAGEMENT, LLC | 189.3K | 0.5% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 185.8K | 0.5% |
| JANE STREET GROUP, LLC | 185.3K | 0.5% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Balyasny Asset Management L.P. | Sold Out | 2.7M | 0 | -2.7M |
| BlackRock, Inc. | Reduced | 2.3M | 596.6K | -1.7M |
| WEXFORD CAPITAL LP | Increased | 701.0K | 2.0M | +1.3M |
| UBS Group AG | Reduced | 2.9M | 2.3M | -591.5K |
| STATE STREET CORP | Reduced | 842.5K | 290.3K | -552.2K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 2.0M | 1.5M | -540.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 959.0K | 458.5K | -500.5K |
| MARSHALL WACE, LLP | New | 0 | 485.7K | +485.7K |
| CITADEL ADVISORS LLC | Increased | 76.6K | 421.9K | +345.3K |
| FourWorld Capital Management LLC | Increased | 1.5M | 1.7M | +254.8K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Sold Out | 221.2K | 0 | -221.2K |
| Massar Capital Management, LP | Sold Out | 221.0K | 0 | -221.0K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 199.5K | +199.5K |
| NORTHERN TRUST CORP | Reduced | 277.4K | 89.1K | -188.2K |
| JANE STREET GROUP, LLC | Increased | 16.6K | 185.3K | +168.7K |
| Lane Generational LLC | Reduced | 1.8M | 1.6M | -141.3K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 8.3K | 148.8K | +140.5K |
| AdvisorShares Investments LLC | Increased | 617.2K | 742.8K | +125.6K |
| TUDOR INVESTMENT CORP ET AL | New | 0 | 124.9K | +124.9K |
| Nuveen, LLC | Sold Out | 123.1K | 0 | -123.1K |
| Centiva Capital, LP | Increased | 169.3K | 285.9K | +116.6K |
| CITIZENS FINANCIAL GROUP INC/RI | Sold Out | 111.0K | 0 | -111.0K |
| Dauntless Investment Group, LLC | Increased | 269.2K | 369.2K | +100.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 86.5K | 185.8K | +99.3K |
| ROYAL BANK OF CANADA | Reduced | 95.8K | 11.2K | -84.7K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Sold Out | 82.1K | 0 | -82.1K |
| Bank of New York Mellon Corp | Sold Out | 78.6K | 0 | -78.6K |
| SEI INVESTMENTS CO | Sold Out | 76.0K | 0 | -76.0K |
| XTX Topco Ltd | Increased | 146.2K | 220.3K | +74.2K |
| Madryn Asset Management, LP | Increased | 18.5M | 18.5M | +64.6K |
| Engineers Gate Manager LP | New | 0 | 57.2K | +57.2K |
| Squarepoint Ops LLC | Increased | 37.6K | 94.6K | +57.0K |
| CITIGROUP INC | Reduced | 56.6K | 2.6K | -54.0K |
| VestGen Advisors, LLC | Reduced | 100.4K | 50.3K | -50.1K |
| DEUTSCHE BANK AG\ | Sold Out | 45.8K | 0 | -45.8K |
| RHUMBLINE ADVISERS | Sold Out | 41.8K | 0 | -41.8K |
| Caitong International Asset Management Co., Ltd | New | 0 | 41.3K | +41.3K |
| HSBC HOLDINGS PLC | New | 0 | 37.8K | +37.8K |
| Schonfeld Strategic Advisors LLC | Sold Out | 31.8K | 0 | -31.8K |
| Quadrature Capital Ltd | New | 0 | 30.9K | +30.9K |
| GOLDMAN SACHS GROUP INC | Increased | 233.6K | 264.1K | +30.5K |
| BANK OF AMERICA CORP /DE/ | Reduced | 98.1K | 68.2K | -29.9K |
| Virtu Financial LLC | New | 0 | 29.6K | +29.6K |
| ALLIANCEBERNSTEIN L.P. | Sold Out | 28.8K | 0 | -28.8K |
| State of Wyoming | New | 0 | 23.5K | +23.5K |
| Qube Research & Technologies Ltd | New | 0 | 23.2K | +23.2K |
| MORGAN STANLEY | Increased | 40.1K | 62.9K | +22.8K |
| JPMORGAN CHASE & CO | Reduced | 21.4K | 748 | -20.7K |
| FMR LLC | Reduced | 25.0K | 5.1K | -20.0K |
| Composition Wealth, LLC | New | 0 | 19.9K | +19.9K |
| Fermata Advisors, LLC | Sold Out | 19.8K | 0 | -19.8K |
| Pathstone Holdings, LLC | Reduced | 32.2K | 14.2K | -18.0K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Sold Out | 17.6K | 0 | -17.6K |
| Aigen Investment Management, LP | New | 0 | 16.2K | +16.2K |
| ExodusPoint Capital Management, LP | Sold Out | 14.2K | 0 | -14.2K |
| BANK OF MONTREAL /CAN/ | New | 0 | 14.1K | +14.1K |
| WELLS FARGO & COMPANY/MN | Reduced | 13.7K | 150 | -13.5K |
| IMC-Chicago, LLC | Reduced | 27.3K | 14.6K | -12.7K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 36.9K | 24.2K | -12.6K |
| StoneX Group Inc. | New | 0 | 12.1K | +12.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.