Neuronetics

STIM • NASDAQ

Neuronetics is a medical - diagnostics & research company in the healthcare sector on NASDAQ, led by Keith J. Sullivan, with a market cap of $104.1M. As of Q3 2025, 32% of shares are held by 95 institutional investors, with VANGUARD GROUP INC as the largest holder at 4.28%.

President and Chief Executive OfficerKeith J. Sullivan

Market Cap$104.1M

Medical - Diagnostics & Research

Healthcare

Employees202.0

Websiteneurostar.com

Country

United States of America

Overview

Overview of institutional ownership in STIM as of Q3 2025 with a market cap of $180.5M

All Institutions

Institutions: 95
Value Held: $57.5M
Shares Held: 21.1M
Avg Position: $605.8K
Median Position: $87.0K

Hedge Funds

Hedge Funds: 17
Value Held: $16.8M
Shares Held: 6.2M
Avg Position: $989.2K
Median Position: $197.6K

Ownership Breakdown

Institutional (non-HF)

22.56%

$40.7M

Hedge Funds

9.32%

$16.8M

Retail & Other

68.12%

$123.0M

Based on market cap of $180.5M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in STIM as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$7.7M 0.00% of portfolio	4.28% 2.8M shares	Q2 2018 Held for 7y 5m	$6.69T
B BlackRock, Inc. Institution	-	$6.3M 0.00% of portfolio	3.48% 2.3M shares	Q2 2018 Held for 7y 5m	$5.67T
UBS Group AG Institution	Sergio P. Ermotti CEO	$5.9M 0.00% of portfolio	3.27% 2.2M shares	Q3 2022 Held for 3y 2m	$511.54B
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	Dmitry Balyasny CIO	$5.0M 0.01% of portfolio	2.75% 1.8M shares	Q1 2023 Held for 2y 8m	$48.1B
WEXFORD CAPITAL LP Hedge Fund•Multi-Strategy	Charles Eugene Davidson Chairman	$3.2M 0.97% of portfolio	1.78% 1.2M shares	Q1 2025 Held for 8 months	$330.0M
M MASTERS CAPITAL MANAGEMENT LLC Hedge Fund•Long/Short	Michael Willingham Masters CEO	$2.7M 0.52% of portfolio	1.51% 1.0M shares	Q3 2024 Held for 1y 2m	$521.3M
Marshall Wace LLP Institution	Diana Lj Harrison President	$2.5M 0.00% of portfolio	1.40% 925.1K shares	Q1 2025 Held for 8 months	$90.3B
Ikarian Capital, LLC Hedge Fund•Event Driven	Neil Tristan Shahrestani CEO	$2.5M 0.50% of portfolio	1.37% 905.7K shares	Q1 2025 Held for 8 months	$494.3M
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$2.4M 0.00% of portfolio	1.33% 876.9K shares	Q3 2018 Held for 7y 2m	$1.57T
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$1.6M 0.00% of portfolio	0.89% 587.6K shares	Q2 2021 Held for 4y 5m	$2.88T

Net Capital Flow

Institutional buying and selling activity for STIM in Q3 2025

Traded: +$7.1M
Buyers: 55
Sellers: 31
Total Bought: +$16.2M
Total Sold: −$9.0M
Avg Position: $542.9K

Biggest Buyers

Institution	Net Bought	Current Position
UBS Group AG Institution	+$5.0M +1.8M shares	$5.9M 2.2M shares
Marshall Wace LLP Institution	+$2.4M +881.9K shares	$2.5M 925.1K shares
WEXFORD CAPITAL LP Hedge Fund•Multi-Strategy	+$1.5M +534.2K shares	$3.2M 1.2M shares
HighTower Advisors, LLC RIA/Wealth	+$1.1M +417.1K shares	$1.6M 577.1K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$853.3K +312.6K shares	$5.0M 1.8M shares
J JANE STREET GROUP, LLC Institution	+$640.6K +234.6K shares	$640.6K 234.6K shares
E EHP Funds Inc. Institution	+$571.6K +209.4K shares	$571.6K 209.4K shares
STATE STREET CORP Institution	+$436.1K +159.7K shares	$1.6M 587.6K shares
Tradewinds, LLC. RIA/Wealth	+$378.1K +138.5K shares	$378.1K 138.5K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$333.7K +122.2K shares	$602.2K 220.6K shares

Biggest Sellers

Institution	Net Sold	Current Position
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short	−$3.2M −920.0K shares	Sold Off 0 shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$1.3M −494.4K shares	$1.0M 383.7K shares
A AWM Investment Company, Inc. Hedge Fund•Event Driven	−$858.3K −245.9K shares	Sold Off 0 shares
GOLDMAN SACHS GROUP INC Institution	−$603.4K −221.0K shares	$605.8K 221.9K shares
Ikarian Capital, LLC Hedge Fund•Event Driven	−$529.6K −194.0K shares	$2.5M 905.7K shares
MORGAN STANLEY RIA/Wealth	−$465.0K −170.3K shares	$1.3M 475.7K shares
CenterBook Partners LP Hedge Fund•Market Neutral	−$372.2K −106.7K shares	Sold Off 0 shares
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors RIA/Wealth	−$303.3K −86.9K shares	Sold Off 0 shares
N NKCFO LLC RIA/Wealth	−$261.8K −75.0K shares	Sold Off 0 shares
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds	−$161.4K −59.1K shares	$758.7K 277.9K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited STIM in Q3 2025

New Positions: 7
New Value: $839.3K
Exited Positions: 10
Exited Value: $5.3M

New Positions

Institution	Position Value
E EHP Funds Inc. Institution	$571.6K 209.4K shares
A AXQ CAPITAL, LP Hedge Fund•Market Neutral	$123.6K 45.3K shares
Atom Investors LP Hedge Fund•Market Neutral	$73.3K 26.9K shares
S SHERBROOKE PARK ADVISERS LLC Hedge Fund•Quant	$33.2K 12.2K shares
Intrua Financial, LLC RIA/Wealth	$32.5K 11.9K shares
Rockefeller Capital Management L.P. Long Only Manager	$4.1K 1.5K shares
IFP Advisors, Inc RIA/Wealth	$976.0 357.5 shares

Exited Positions

Institution	Previous Position
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short	$3.2M 920.0K shares
A AWM Investment Company, Inc. Hedge Fund•Event Driven	$858.3K 245.9K shares
CenterBook Partners LP Hedge Fund•Market Neutral	$372.2K 106.7K shares
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors RIA/Wealth	$303.3K 86.9K shares
N NKCFO LLC RIA/Wealth	$261.8K 75.0K shares
Engineers Gate Manager LP Hedge Fund•Quant	$127.5K 36.5K shares
Q Qube Research & Technologies Ltd Institution	$87.0K 24.9K shares
A Assenagon Asset Management S.A. Institution	$48.0K 13.8K shares
ING INVESTMENT MANAGEMENT LLC Insurance Manager	$37.2K 10.7K shares
ATWOOD & PALMER INC RIA/Wealth	$349.0 100.0 shares

Options Activity

Institutions with the largest Call and Put options positions in STIM as of Q3 2025

Call Positions: 6
Call Value: $4.3M
Put Positions: 4
Put Value: $546.6K

Call Positions

Institution	Position Value
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$3.5M 12.8K contracts
P PEAK6 LLC Institution	$546.0K 2.0K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$81.6K 299.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$81.4K 298.0 contracts
W WOLVERINE TRADING, LLC Institution	$68.1K 256.0 contracts
J JANE STREET GROUP, LLC Institution	$36.9K 135.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$200.1K 733.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$145.0K 531.0 contracts
W WOLVERINE TRADING, LLC Institution	$111.5K 419.0 contracts
J JANE STREET GROUP, LLC Institution	$90.1K 330.0 contracts

Most Committed Institutions

Institutions with STIM as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
F FourWorld Capital Management LLC Institution	-	3.76% $1.6M	0.86% 568.0K shares	Q1 2024 Held for 1y 8m	$41.3M
WEXFORD CAPITAL LP Hedge Fund•Multi-Strategy	Charles Eugene Davidson Chairman	0.97% $3.2M	1.78% 1.2M shares	Q1 2025 Held for 8 months	$330.0M
E EHP Funds Inc. Institution	-	0.79% $571.6K	0.32% 209.4K shares	Q3 2025 Held for 2 months	$72.6M
M MASTERS CAPITAL MANAGEMENT LLC Hedge Fund•Long/Short	Michael Willingham Masters CEO	0.52% $2.7M	1.51% 1.0M shares	Q3 2024 Held for 1y 2m	$521.3M
Ikarian Capital, LLC Hedge Fund•Event Driven	Neil Tristan Shahrestani CEO	0.50% $2.5M	1.37% 905.7K shares	Q1 2025 Held for 8 months	$494.3M
M Massar Capital Management, LP Institution	-	0.24% $655.2K	0.36% 240.0K shares	Q1 2025 Held for 8 months	$269.6M
Cruiser Capital Advisors, LLC Hedge Fund•Long/Short	Keith Michael Rosenbloom Managing Partner	0.15% $136.5K	0.08% 50.0K shares	Q1 2025 Held for 8 months	$93.0M
Tradewinds, LLC. RIA/Wealth	Timothy M. Whitney CEO	0.09% $378.1K	0.21% 138.5K shares	Q4 2024 Held for 11 months	$410.2M
A AdvisorShares Investments LLC Institution	Noah Hamman CEO	0.09% $519.0K	0.29% 190.1K shares	Q4 2024 Held for 11 months	$602.4M
A AXQ CAPITAL, LP Hedge Fund•Market Neutral	Taro Hsu Kuriyama COO	0.05% $123.6K	0.07% 45.3K shares	Q3 2025 Held for 2 months	$261.9M