Neuronetics STIM Institutional Ownership

NASDAQ STIM

$2.88 -0.05 (-1.71%)

As of: Sep 9, 2026 · 11:23 AM 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

50.89%

▼-8.95 pp QoQ

Shares Held by Institutions

37.22Mn

of 73.13Mn outstanding

▼-1.40% QoQ

Shares Outstanding

73.13Mn

35.91Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▼-12 vs prior quarter

Net Shares Added (QoQ)

-526.90K

distributed since last quarter

Value of Holdings

$107.19Mn

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

Quarter ending 30 Jun, 2026

Neuronetics, Inc. (NASDAQ:STIM) is held by 87 institutional investors per 13F filings through June 2026.

Their combined ownership stood at 50.9% of outstanding shares in June 2026, down from 59.8% in March 2026.
They decreased total shares held in Neuronetics by -1.4% from the prior quarter, while the number of investors in STIM decreased 3.33% year over year.
Activity in STIM broke down as 47 buyers, 25 sellers, and 15 unchanged among 87 total holders.
Institutional investors collectively held 37.22Mn shares in Neuronetics as of June 2026, down by 526.9K shares quarter on quarter, and up 19.29Mn shares year over year.
Madryn Asset Management, LP holds the largest position in STIM at 18.54Mn shares as of June 30, 2026, or 25.35% of shares outstanding.
Top purchasers of STIM stock for the quarter ending June 2026 included WEXFORD CAPITAL LP (1.3Mn), MARSHALL WACE, LLP (485.69K), CITADEL ADVISORS LLC (345.31K), FourWorld Capital Management LLC (254.82K), MILLENNIUM MANAGEMENT LLC (199.45K).
The largest sellers of Neuronetics for the quarter ending June 2026 were BlackRock, Inc. (1.72Mn), UBS Group AG (591.5K), State Street Corp (552.25K), VANGUARD CAPITAL MANAGEMENT LLC (540.88K), GEODE CAPITAL MANAGEMENT, LLC (500.52K).
Neuronetics's 10 largest shareholders as of June 2026 include Madryn Asset Management, LP (18.54Mn), UBS Group AG (2.28Mn), WEXFORD CAPITAL LP (2.0Mn), FourWorld Capital Management LLC (1.74Mn), Lane Generational LLC (1.63Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.51Mn), MASTERS CAPITAL MANAGEMENT LLC (1.0Mn), AdvisorShares Investments LLC (742.8K), Ikarian Capital, LLC (701.18K), BlackRock, Inc. (596.62K) per Business Quant data.

Form 13F Holdings

87 Institutional Holders

Report period 30 Jun, 2026

Total shares held 37.22Mn

Of outstanding 50.89%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Madryn Asset Management, LP	0001787423	18,540,488	25.35%	▲64,595	+0.35%	$24.10Mn
2	UBS Group AG	0001610520	2,279,099	3.12%	▼591,499	-20.61%	$2.96Mn
3	WEXFORD CAPITAL LP	0001048462	2,002,625	2.74%	▲1,301,664	+185.70%	$2.60Mn
4	FourWorld Capital Management LLC	0001770525	1,744,142	2.39%	▲254,820	+17.11%	$2.27Mn
5	Lane Generational LLC	0001901384	1,633,372	2.23%	▼141,252	-7.96%	$2.12Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,507,097	2.06%	▼540,878	-26.41%	$1.96Mn
7	MASTERS CAPITAL MANAGEMENT LLC	0001104186	1,000,000	1.37%	0	0.00%	$1.30Mn
8	AdvisorShares Investments LLC	0001425930	742,795	1.02%	▲125,602	+20.35%	$965.63K
9	Ikarian Capital, LLC	0001778253	701,182	0.96%	0	0.00%	$911.54K
10	BlackRock, Inc.	0002012383	596,622	0.82%	▼1,721,915	-74.27%	$775.61K
11	HighTower Advisors, LLC	0001462245	563,741	0.77%	▲1,371	+0.24%	$732.86K
12	MARSHALL WACE, LLP	0001318757	485,692	0.66%	▲485,692	0.00%	$631.40K
13	GEODE CAPITAL MANAGEMENT, LLC	0001214717	458,474	0.63%	▼500,515	-52.19%	$596.24K
14	CITADEL ADVISORS LLC	0001423053	421,903	0.58%	▲345,306	+450.81%	$548.47K
15	Dauntless Investment Group, LLC	0002044285	369,187	0.50%	▲99,979	+37.14%	$479.94K
16	State Street Corp	0000093751	290,299	0.40%	▼552,248	-65.55%	$377.39K
17	Centiva Capital, LP	0001692507	285,913	0.39%	▲116,594	+68.86%	$371.69K
18	VANGUARD FIDUCIARY TRUST CO	0000933478	264,734	0.36%	▲6,700	+2.60%	$344.15K
19	Goldman Sachs Group Inc	0000886982	264,088	0.36%	▲30,498	+13.06%	$343.31K
20	JBF Capital, Inc.	0001483864	233,166	0.32%	0	0.00%	$303.12K

Showing 1 to 20 of 87 holders