Neuronetics STIM Institutional Ownership

NASDAQ STIM

$2.01 +0.03 (+1.52%)

At close: Oct 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

87 Institutions

Increased 47 54.0%

Unchanged 15 17.2%

Reduced 25 28.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

48.85%

▼-11.00 pp QoQ

Shares Held by Institutions

37.22Mn

of 76.19Mn outstanding

▼-10.63% QoQ

Shares Outstanding

76.19Mn

38.98Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▼-12 vs prior quarter

Net Shares Added (QoQ)

-4.43Mn

distributed since last quarter

Value of Holdings

$73.69Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Neuronetics, Inc. (NASDAQ:STIM) had 87 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

Their combined stake equaled 48.85% of outstanding shares in Q2 2026, down from 59.85% in Q1 2026.
Total holdings of STIM shares fell 10.63% from Q1 2026, and the holder count fell 2.25% from Q2 2025.
Of these 87 holders, 47 added to their positions, 25 reduced their stakes and 15 left their positions unchanged.
In total, institutional investors held 37.22Mn shares of Neuronetics at the end of Q2 2026, down 4.43Mn from the prior quarter and up 19.77Mn from a year earlier.
Madryn Asset Management, LP led 13F holders of STIM with 18.54Mn shares as of June 30, 2026, or 24.33% of shares outstanding.
The biggest increases in STIM positions during Q2 2026 came from Wexford Capital LP (+1.3Mn shares), Citadel Advisors LLC (+345.31K shares), FourWorld Capital Management LLC (+254.82K shares), Jane Street Group, LLC (+168.68K shares) and BNP Paribas Financial Markets (+140.52K shares).
Among holders that kept a stake in Neuronetics, the biggest sellers in Q2 2026 were BlackRock, Inc. (-1.72Mn shares), UBS Group AG (-591.5K shares), State Street Corp (-552.25K shares), Vanguard Capital Management LLC (-540.88K shares) and Geode Capital Management, LLC (-500.51K shares).
Per Business Quant, the top 10 investors in STIM for the quarter ended June 30, 2026 were Madryn Asset Management, LP (18.54Mn shares), UBS Group AG (2.28Mn shares), Wexford Capital LP (2Mn shares), FourWorld Capital Management LLC (1.74Mn shares), Lane Generational LLC (1.63Mn shares), Vanguard Capital Management LLC (1.51Mn shares), Masters Capital Management LLC (1Mn shares), AdvisorShares Investments LLC (742.79K shares), Ikarian Capital, LLC (701.18K shares) and BlackRock, Inc. (596.62K shares).

Form 13F Holdings

87 Institutional Holders

Report period 30 Jun, 2026

Total shares held 37.22Mn

Of outstanding 48.85%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Madryn Asset Management, LP	0001787423	18,540,488	24.33%	▲64,595	+0.35%	$24.10Mn
2	UBS Group AG	0001610520	2,279,099	2.99%	▼591,499	-20.61%	$2.96Mn
3	WEXFORD CAPITAL LP	0001048462	2,002,625	2.63%	▲1,301,664	+185.70%	$2.60Mn
4	FourWorld Capital Management LLC	0001770525	1,744,142	2.29%	▲254,820	+17.11%	$2.27Mn
5	Lane Generational LLC	0001901384	1,633,372	2.14%	▼141,252	-7.96%	$2.12Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,507,097	1.98%	▼540,878	-26.41%	$1.96Mn
7	MASTERS CAPITAL MANAGEMENT LLC	0001104186	1,000,000	1.31%	0	0.00%	$1.30Mn
8	AdvisorShares Investments LLC	0001425930	742,795	0.97%	▲125,602	+20.35%	$965.63K
9	Ikarian Capital, LLC	0001778253	701,182	0.92%	0	0.00%	$911.54K
10	BlackRock, Inc.	0002012383	596,622	0.78%	▼1,721,915	-74.27%	$775.61K
11	HighTower Advisors, LLC	0001462245	563,741	0.74%	▲1,371	+0.24%	$732.86K
12	MARSHALL WACE, LLP	0001318757	485,692	0.64%	▲485,692	0.00%	$631.40K
13	GEODE CAPITAL MANAGEMENT, LLC	0001214717	458,474	0.60%	▼500,515	-52.19%	$596.24K
14	CITADEL ADVISORS LLC	0001423053	421,903	0.55%	▲345,306	+450.81%	$548.47K
15	Dauntless Investment Group, LLC	0002044285	369,187	0.48%	▲99,979	+37.14%	$479.94K
16	State Street Corp	0000093751	290,299	0.38%	▼552,248	-65.55%	$377.39K
17	Centiva Capital, LP	0001692507	285,913	0.38%	▲116,594	+68.86%	$371.69K
18	VANGUARD FIDUCIARY TRUST CO	0000933478	264,734	0.35%	▲6,700	+2.60%	$344.15K
19	Goldman Sachs Group Inc	0000886982	264,088	0.35%	▲30,498	+13.06%	$343.31K
20	JBF Capital, Inc.	0001483864	233,166	0.31%	0	0.00%	$303.12K

Showing 1 to 20 of 87 holders