Neuronetics, Inc. (STIM) — Institutional Holders, Q2 2026
87 institutional investment managers reported a STIM position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $48.4M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
STIM in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- WEXFORD CAPITALAdded · +1,301,664 sh+$1.7M
- MARSHALL WACE, LLPNew · +485,692 sh+$631.4K
- CITADEL ADVISORSAdded · +345,306 sh+$448.9K
- FourWorld Capital ManagementAdded · +254,820 sh+$331.3K
- MILLENNIUM MANAGEMENTNew · +199,450 sh+$259.3K
Biggest sellers
- BALYASNY ASSET MANAGEMENT L.P.Sold out · -2,743,768 sh-$3.6M
- BlackRockTrimmed · -1,721,915 sh-$2.2M
- UBS Group AGTrimmed · -591,499 sh-$768.9K
- STATE STREETTrimmed · -552,248 sh-$717.9K
- VANGUARD CAPITAL MANAGEMENTTrimmed · -540,878 sh-$703.1K
STIM 13F holders ranked 1–87 of 87
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Madryn Asset Management#1 · 18,540,488 sh | 18,540,488 | $24.1M | 65.29% | +0.3% |
| 2 | UBS Group AG#2 · 2,279,099 sh | 2,279,099 | $3.0M | <0.01% | -20.6% |
| 3 | WEXFORD CAPITAL#3 · 2,002,625 sh | 2,002,625 | $2.6M | 0.33% | +185.7% |
| 4 | FourWorld Capital Management#4 · 1,744,142 sh | 1,744,142 | $2.3M | 2.06% | +17.1% |
| 5 | Lane Generational#5 · 1,633,372 sh | 1,633,372 | $2.1M | 1.86% | -8.0% |
| 6 | VANGUARD CAPITAL MANAGEMENT#6 · 1,507,097 sh | 1,507,097 | $2.0M | 0.00% | -26.4% |
| 7 | MASTERS CAPITAL MANAGEMENT#7 · 1,000,000 sh | 1,000,000 | $1.3M | 0.03% | 0.0% |
| 8 | AdvisorShares Investments#8 · 742,795 sh | 742,795 | $965.6K | 0.12% | +20.4% |
| 9 | Ikarian Capital#9 · 701,182 sh | 701,182 | $911.5K | 0.10% | 0.0% |
| 10 | BlackRock#10 · 596,622 sh | 596,622 | $775.6K | 0.00% | -74.3% |
| 11 | HighTower Advisors#11 · 563,741 sh | 563,741 | $732.9K | <0.01% | +0.2% |
| 12 | MARSHALL WACE, LLP#12 · 485,692 sh | 485,692 | $631.4K | <0.01% | New |
| 13 | GEODE CAPITAL MANAGEMENT#13 · 458,474 sh | 458,474 | $596.2K | 0.00% | -52.2% |
| 14 | CITADEL ADVISORS#14 · 421,903 sh | 421,903 | $548.5K | <0.01% | +450.8% |
| 15 | Dauntless Investment Group#15 · 369,187 sh | 369,187 | $479.9K | 0.38% | +37.1% |
| 16 | STATE STREET#16 · 290,299 sh | 290,299 | $377.4K | 0.00% | -65.5% |
| 17 | Centiva Capital#17 · 285,913 sh | 285,913 | $371.7K | <0.01% | +68.9% |
| 18 | VANGUARD FIDUCIARY#18 · 264,734 sh | 264,734 | $344.2K | <0.01% | +2.6% |
| 19 | GOLDMAN SACHS GROUP#19 · 264,088 sh | 264,088 | $343.3K | 0.00% | +13.1% |
| 20 | JBF Capital#20 · 233,166 sh | 233,166 | $303.1K | 0.04% | 0.0% |
| 21 | XTX Topco Ltd#21 · 220,323 sh | 220,323 | $286.4K | <0.01% | +50.7% |
| 22 | MILLENNIUM MANAGEMENT#22 · 199,450 sh | 199,450 | $259.3K | <0.01% | New |
| 23 | BOOTHBAY FUND MANAGEMENT#23 · 189,263 sh | 189,263 | $246.0K | <0.01% | 0.0% |
| 24 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#24 · 185,753 sh | 185,753 | $241.5K | 0.00% | +114.8% |
| 25 | JANE STREET GROUP#25 · 185,250 sh | 185,250 | $240.8K | 0.00% | +1017.7% |
| 26 | BNP PARIBAS FINANCIAL MARKETS#26 · 148,815 sh | 148,815 | $193.5K | <0.01% | +1694.0% |
| 27 | TUDOR INVESTMENT ET AL#27 · 124,861 sh | 124,861 | $162.3K | <0.01% | New |
| 28 | AQR CAPITAL MANAGEMENT#28 · 117,822 sh | 117,822 | $153.2K | <0.01% | +1.0% |
| 29 | ADAR1 Capital Management#29 · 100,000 sh | 100,000 | $130.0K | <0.01% | 0.0% |
| 30 | BRIDGEWAY CAPITAL MANAGEMENT#30 · 95,205 sh | 95,205 | $123.8K | <0.01% | 0.0% |
| 31 | Squarepoint Ops#31 · 94,616 sh | 94,616 | $123.0K | <0.01% | +151.5% |
| 32 | NORTHERN#32 · 89,138 sh | 89,138 | $115.9K | 0.00% | -67.9% |
| 33 | HRT FINANCIAL#33 · 88,710 sh | 88,710 | $115.0K | <0.01% | -11.8% |
| 34 | GAMCO INVESTORS, ET AL#34 · 79,200 sh | 79,200 | $103.0K | <0.01% | 0.0% |
| 35 | Invesco Ltd.#35 · 68,340 sh | 68,340 | $88.8K | 0.00% | -5.6% |
| 36 | BANK OF AMERICA#36 · 68,195 sh | 68,195 | $88.7K | 0.00% | -30.5% |
| 37 | MORGAN STANLEY#37 · 62,893 sh | 62,893 | $81.8K | 0.00% | +56.9% |
| 38 | Engineers Gate Manager#38 · 57,175 sh | 57,175 | $74.3K | <0.01% | New |
| 39 | VestGen Advisors#39 · 50,279 sh | 50,279 | $65.4K | <0.01% | -49.9% |
| 40 | Cruiser Capital Advisors#40 · 48,900 sh | 48,900 | $63.6K | 0.04% | 0.0% |
| 41 | Caitong International Asset Management , Ltd#41 · 41,320 sh | 41,320 | $53.7K | <0.01% | New |
| 42 | SRS Capital Advisors#42 · 39,843 sh | 39,843 | $51.8K | <0.01% | +1.8% |
| 43 | HSBC PLC#43 · 37,847 sh | 37,847 | $50.0K | 0.00% | New |
| 44 | GABELLI FUNDS#44 · 38,000 sh | 38,000 | $49.4K | <0.01% | 0.0% |
| 45 | Quadrature Capital Ltd#45 · 30,856 sh | 30,856 | $40.1K | <0.01% | New |
| 46 | Virtu Financial#46 · 29,582 sh | 29,582 | $38.0K | <0.01% | New |
| 47 | David J Yvars Group#47 · 27,550 sh | 27,550 | $35.8K | — | +35.7% |
| 48 | PRICE T ROWE ASSOCIATES#48 · 24,246 sh | 24,246 | $32.0K | 0.00% | -34.2% |
| 49 | State of Wyoming#49 · 23,482 sh | 23,482 | $30.5K | <0.01% | New |
| 50 | Qube Research & Technologies Ltd#50 · 23,211 sh | 23,211 | $30.2K | 0.00% | New |
| 51 | Fielder Capital Group#51 · 22,903 sh | 22,903 | $29.8K | <0.01% | +0.2% |
| 52 | Miracle Mile Advisors#52 · 19,851 sh | 19,851 | $25.8K | <0.01% | New |
| 53 | Tower Research Capital (TRC)#53 · 19,602 sh | 19,602 | $25.5K | <0.01% | +45.3% |
| 54 | GROUP ONE TRADING, L.P.#54 · 17,669 sh | 17,669 | $23.0K | 0.00% | -23.6% |
| 55 | Vanguard Global Advisers#55 · 16,453 sh | 16,453 | $21.4K | 0.00% | 0.0% |
| 56 | AIGEN INVESTMENT MANAGEMENT#56 · 16,246 sh | 16,246 | $21.1K | <0.01% | New |
| 57 | SIMPLEX TRADING#57 · 14,861 sh | 14,861 | $19.3K | 0.00% | +5.6% |
| 58 | IMC-Chicago#58 · 14,566 sh | 14,566 | $18.9K | 0.00% | -46.6% |
| 59 | StoneX Group#59 · 12,092 sh | 12,092 | $18.6K | <0.01% | New |
| 60 | Pathstone#60 · 14,247 sh | 14,247 | $18.5K | <0.01% | -55.8% |
| 61 | BANK OF MONTREAL#61 · 14,109 sh | 14,109 | $18.3K | 0.00% | New |
| 62 | AXQ CAPITAL#62 · 11,024 sh | 11,024 | $14.3K | <0.01% | -10.4% |
| 63 | ROYAL BANK OF CANADA#63 · 11,158 sh | 11,158 | $14.0K | 0.00% | -88.4% |
| 64 | Russell Investments Group, Ltd.#64 · 8,839 sh | 8,839 | $11.5K | 0.00% | +171.4% |
| 65 | BARCLAYS PLC#65 · 5,839 sh | 5,839 | $7.6K | 0.00% | -10.2% |
| 66 | FMR#66 · 5,061 sh | 5,061 | $6.6K | 0.00% | -79.8% |
| 67 | MCF Advisors#67 · 3,564 sh | 3,564 | $4.6K | <0.01% | 0.0% |
| 68 | CITIGROUP#68 · 2,619 sh | 2,619 | $3.4K | 0.00% | -95.4% |
| 69 | Rockefeller Capital Management L.P.#69 · 1,500 sh | 1,500 | $1.9K | 0.00% | 0.0% |
| 70 | Essential Partners#70 · 835 sh | 835 | $1.1K | — | -79.8% |
| 71 | OSAIC#71 · 795 sh | 795 | $1.0K | 0.00% | 0.0% |
| 72 | JPMORGAN CHASE#72 · 748 sh | 748 | $1.0K | 0.00% | -96.5% |
| 73 | Physician Wealth Advisors#73 · 775 sh | 775 | $1.0K | — | 0.0% |
| 74 | GAMMA Investing#74 · 681 sh | 681 | $885.00 | — | -44.1% |
| 75 | EverSource Wealth Advisors#75 · 606 sh | 606 | $788.00 | 0.00% | +0.8% |
| 76 | Allied Private Wealth#76 · 470 sh | 470 | $723.00 | <0.01% | — |
| 77 | SBI Securities , Ltd.#77 · 458 sh | 458 | $595.00 | — | +1.1% |
| 78 | Integrated Wealth Concepts#78 · 323 sh | 323 | $420.00 | 0.00% | New |
| 79 | Farther Finance Advisors#79 · 226 sh | 226 | $294.00 | — | +283.1% |
| 80 | Allworth Financial#80 · 169 sh | 169 | $220.00 | 0.00% | +634.8% |
| 81 | WELLS FARGO & COMPANY#81 · 150 sh | 150 | $195.00 | 0.00% | -98.9% |
| 82 | PNC FINANCIAL SERVICES GROUP#82 · 124 sh | 124 | $161.00 | 0.00% | -47.7% |
| 83 | Transamerica Financial Advisors#83 · 119 sh | 119 | $154.00 | 0.00% | New |
| 84 | Federation des caisses Desjardins du Quebec#84 · 104 sh | 104 | $134.00 | 0.00% | 0.0% |
| 85 | ROTHSCHILD INVESTMENT#85 · 83 sh | 83 | $108.00 | 0.00% | +50.9% |
| 86 | TD Waterhouse Canada#86 · 59 sh | 59 | $80.00 | — | 0.0% |
| 87 | IFP Advisors#87 · 12 sh | 12 | $16.00 | — | +300.0% |
Funds that sold out of STIM in Q2 2026 (28)
Held STIM at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.