Who owns Neuronetics, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of STIM from SEC Form 13F filings across 86 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 86 institutions disclosed 37.2M shares of Neuronetics, Inc. worth $48.4M — about 50.9% of shares outstanding; the largest disclosed holder is Madryn Asset Management, LP. Source: SEC Form 13F filings, parsed by EvidInvest.
86
13F holders
$48.4M
value, 2026 filers
50.9%
of shares outstanding (37.2M sh)
16
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of STIM's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Madryn Asset Management, LP | 18.5M | $24.1M | 65.3% | 25.4% | +0.3% |
| 2 | UBS Group AG | 2.3M | $3.0M | 0.0% | 3.1% | -20.6% |
| 3 | WEXFORD CAPITAL LP | 2.0M | $2.6M | 0.3% | 2.7% | +185.7% |
| 4 | FourWorld Capital Management LLC | 1.7M | $2.3M | 2.1% | 2.4% | +17.1% |
| 5 | Lane Generational LLC | 1.6M | $2.1M | 1.9% | 2.2% | -8.0% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | $2.0M | 0.0% | 2.1% | -26.4% |
| 7 | MASTERS CAPITAL MANAGEMENT LLC | 1.0M | $1.3M | 0.0% | 1.4% | 0.0% |
| 8 | AdvisorShares Investments LLC | 742,795 | $965,634 | 0.1% | 1% | +20.4% |
| 9 | Ikarian Capital, LLC | 701,182 | $911,537 | 0.1% | 1% | 0.0% |
| 10 | BlackRock, Inc. | 596,622 | $775,608 | 0.0% | 0.8% | -74.3% |
| 11 | HighTower Advisors, LLC | 563,741 | $732,863 | 0.0% | 0.8% | +0.2% |
| 12 | MARSHALL WACE, LLPNEW | 485,692 | $631,400 | 0.0% | 0.7% | new |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 458,474 | $596,242 | 0.0% | 0.6% | -52.2% |
| 14 | CITADEL ADVISORS LLC | 421,903 | $548,474 | 0.0% | 0.6% | +450.8% |
| 15 | Dauntless Investment Group, LLC | 369,187 | $479,943 | 0.4% | 0.5% | +37.1% |
| 16 | STATE STREET CORP | 290,299 | $377,389 | 0.0% | 0.4% | -65.5% |
| 17 | Centiva Capital, LP | 285,913 | $371,687 | 0.0% | 0.4% | +68.9% |
| 18 | VANGUARD FIDUCIARY TRUST CO | 264,734 | $344,154 | 0.0% | 0.4% | +2.6% |
| 19 | GOLDMAN SACHS GROUP INC | 264,088 | $343,314 | 0.0% | 0.4% | +13.1% |
| 20 | JBF Capital, Inc. | 233,166 | $303,116 | 0.0% | 0.3% | 0.0% |
| 21 | XTX Topco Ltd | 220,323 | $286,420 | 0.0% | 0.3% | +50.7% |
| 22 | MILLENNIUM MANAGEMENT LLCNEW | 199,450 | $259,285 | 0.0% | 0.3% | new |
| 23 | BOOTHBAY FUND MANAGEMENT, LLC | 189,263 | $246,042 | 0.0% | 0.3% | 0.0% |
| 24 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 185,753 | $241,479 | 0.0% | 0.3% | +114.8% |
| 25 | JANE STREET GROUP, LLC | 185,250 | $240,825 | 0.0% | 0.3% | +1017.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.