Neuronetics, Inc. (STIM) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

2,960,486Shares held by institutions

$3,759,817Value of institutional holdings

27.09%Institutional ownership %

11.57%Shares Changed QoQ

90No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Neuronetics, Inc. (NASDAQ:STIM) has 93 institutional investors with active 13F positions as of December 2025.

These investors collectively held 63.1% of Neuronetics's outstanding shares in December 2025, up from 31.7% in September 2025.
Their total shares held in STIM increased 106.95% from the prior quarter, while the number of investors in Neuronetics increased 102.17% year over year.
Of these 93 funds, 47 grew their exposure to Neuronetics, 26 cut back, and 20 maintained positions.
Altogether, these fund groups held 42.45Mn shares in STIM by December 2025, up by 21.94Mn shares quarter on quarter, and up 34.89Mn shares year over year.
Madryn Asset Management, LP leads ownership in STIM with 18.48Mn shares as of December 31, 2025, equal to 27.45% of outstanding shares.
Top purchasers of STIM stock for the quarter ending December 2025 included Madryn Asset Management, LP (18.48Mn), Lane Generational LLC (1.71Mn), JANE STREET GROUP, LLC (783.22K), BALYASNY ASSET MANAGEMENT L.P. (730.76K), RENAISSANCE TECHNOLOGIES LLC (474.9K).
The biggest sellers of Neuronetics for the quarter ending December 2025 included MARSHALL WACE, LLP (639.07K), WEXFORD CAPITAL LP (532.27K), MILLENNIUM MANAGEMENT LLC (372.9K), Morgan Stanley (359.28K), VANGUARD GROUP INC (249.74K).
Per Business Quant, the top 10 investors in STIM for the quarter ending December 2025 include Madryn Asset Management, LP (18.48Mn), UBS Group AG (2.61Mn), VANGUARD GROUP INC (2.58Mn), BALYASNY ASSET MANAGEMENT L.P. (2.55Mn), BlackRock, Inc. (2.35Mn), Lane Generational LLC (1.71Mn), JANE STREET GROUP, LLC (1.02Mn), MASTERS CAPITAL MANAGEMENT LLC (1.0Mn), FourWorld Capital Management LLC (931.25K), GEODE CAPITAL MANAGEMENT, LLC (891.73K).

93 Institutional Holders

2,960,486 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	50,250	2.18%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-249,736	-8.82%	$0.00
Madryn Asset Management, LP	31 Dec, 2025	18,475,893	0.00%	$0.00
Barclays Plc	31 Dec, 2025	9,941	19.24%	$0.00
BALYASNY ASSET MANAGEMENT L.P.	31 Dec, 2025	730,755	40.12%	$0.00
UBS Group AG	31 Dec, 2025	442,216	20.43%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	1,500	100.00%	$0.00
JANE STREET GROUP, LLC	31 Dec, 2025	783,223	333.80%	$0.00
Lane Generational LLC	31 Dec, 2025	1,705,197	0.00%	$0.00
MASTERS CAPITAL MANAGEMENT LLC	31 Dec, 2025	0	0.00%	$0.00
FourWorld Capital Management LLC	31 Dec, 2025	363,250	63.95%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	14,799	1.69%	$0.00
Ikarian Capital, LLC	31 Dec, 2025	-204,534	-22.58%	$0.00
WEXFORD CAPITAL LP	31 Dec, 2025	-532,274	-45.21%	$0.00
XTX Topco Ltd	31 Dec, 2025	314,194	0.00%	$0.00
State Street Corp	31 Dec, 2025	-3,466	-0.59%	$0.00
Massar Capital Management, LP	31 Dec, 2025	-19,000	-7.92%	$0.00
HighTower Advisors, LLC	31 Dec, 2025	-12,763	-2.21%	$0.00
Caitong International Asset Management Co., Ltd	31 Dec, 2025	182,994	7,258.79%	$0.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	474,900	0.00%	$0.00

1 - 20 of 93

Research Tools