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.
Sign in or subscribeLargest 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 |
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.