Power Solutions International, Inc.

PSIX • OTC

Power Solutions International, Inc. is a publicly traded company on OTC, with a market cap of $1.4B. As of Q3 2025, 24% of shares are held by 201 institutional investors, with BlackRock, Inc. as the largest holder at 2.4%.

Market Cap$1.4B

Overview

Overview of institutional ownership in PSIX as of Q3 2025 with a market cap of $2.3B

All Institutions

Institutions: 201
Value Held: $532.5M
Shares Held: 5.4M
Avg Position: $2.6M
Median Position: $491.1K

Hedge Funds

Hedge Funds: 31
Value Held: $123.2M
Shares Held: 1.3M
Avg Position: $4.0M
Median Position: $1.3M

Ownership Breakdown

Institutional (non-HF)

18.09%

$409.2M

Hedge Funds

5.45%

$123.2M

Retail & Other

76.46%

$1.7B

Based on market cap of $2.3B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in PSIX as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$54.2M 0.00% of portfolio	2.40% 551.6K shares	Q4 2024 Held for 11 months	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$49.3M 0.00% of portfolio	2.18% 502.4K shares	Q1 2025 Held for 8 months	$6.69T
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	Anthony Ryan CEO	$31.9M 0.02% of portfolio	1.41% 325.1K shares	Q2 2025 Held for 5 months	$158.92B
B Busey Trust CO RIA/Wealth	Jeffrey Daniel Burgess CEO	$21.6M 0.60% of portfolio	0.96% 220.0K shares	Q3 2025 Held for 2 months	$3.6B
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$19.4M 0.00% of portfolio	0.86% 197.5K shares	Q4 2024 Held for 11 months	$1.65T
Portolan Capital Management, LLC Hedge Fund•Long/Short	George Frederic Mccabe CIO	$19.2M 1.04% of portfolio	0.85% 195.8K shares	Q4 2024 Held for 11 months	$1.8B
Allspring Global Investments Holdings, LLC Long Only Manager	Francis Jon Baranko President	$19.0M 0.03% of portfolio	0.89% 206.1K shares	Q3 2025 Held for 2 months	$61.5B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$16.6M 0.00% of portfolio	0.73% 168.9K shares	Q1 2025 Held for 8 months	$1.57T
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	-	$13.6M 0.02% of portfolio	0.60% 138.4K shares	Q1 2025 Held for 8 months	$67.9B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$13.4M 0.00% of portfolio	0.59% 136.7K shares	Q1 2025 Held for 8 months	$2.88T

Net Capital Flow

Institutional buying and selling activity for PSIX in Q3 2025

Net Flow: +$71.2M
Buyers: 68
Sellers: 46
Total Bought: +$147.1M
Total Sold: −$75.8M
Avg Position: $3.2M

Biggest Buyers

Institution	Net Bought	Current Position
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	+$24.7M +251.9K shares	$31.9M 325.1K shares
Portolan Capital Management, LLC Hedge Fund•Long/Short	+$19.2M +195.8K shares	$19.2M 195.8K shares
MORGAN STANLEY RIA/Wealth	+$14.4M +146.1K shares	$19.4M 197.5K shares
VANGUARD GROUP INC Institution	+$13.8M +140.7K shares	$49.3M 502.4K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$12.8M +130.3K shares	$13.6M 138.4K shares
Invesco Ltd. ETF Provider	+$9.5M +96.5K shares	$9.9M 100.5K shares
STATE STREET CORP Institution	+$5.7M +58.4K shares	$13.4M 136.7K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$4.9M +50.1K shares	$10.5M 106.5K shares
B BlackRock, Inc. Institution	+$4.4M +44.6K shares	$54.2M 551.6K shares
L LPL Financial LLC Institution	+$4.0M +40.2K shares	$8.5M 86.1K shares

Biggest Sellers

Institution	Net Sold	Current Position
GAGNON SECURITIES LLC RIA/Wealth	−$27.2M −276.8K shares	$6.4M 64.8K shares
G Gagnon Advisors, LLC Hedge Fund•Long/Short	−$11.7M −180.4K shares	Sold Off 0 shares
WELLS FARGO & COMPANY/MN Institution	−$6.9M −69.9K shares	$3.5M 35.6K shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	−$5.6M −57.3K shares	$5.2M 52.8K shares
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	−$2.7M −27.2K shares	$1.7M 17.6K shares
S S Squared Technology, LLC Hedge Fund•Long/Short	−$2.6M −39.6K shares	Sold Off 0 shares
O'SHAUGHNESSY ASSET MANAGEMENT, LLC Long Only Manager	−$2.5M −25.2K shares	$5.3M 53.8K shares
GOLDMAN SACHS GROUP INC Institution	−$2.4M −24.7K shares	$3.7M 37.5K shares
Valiant Capital Management, L.P. Hedge Fund•Long/Short	−$2.1M −21.6K shares	$3.8M 38.9K shares
T THOMPSON DAVIS & CO., INC. Institution	−$1.8M −18.2K shares	$235.7K 2.4K shares

Entry and Exit Activity

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

New Positions: 77
New Value: $107.2M
Exited Positions: 13
Exited Value: $17.3M

New Positions

Institution	Position Value
B Busey Trust CO RIA/Wealth	$21.6M 220.0K shares
Allspring Global Investments Holdings, LLC Long Only Manager	$19.0M 206.1K shares
H Hel Ved Capital Management Ltd Institution	$6.7M 68.7K shares
K KADENSA CAPITAL Ltd Institution	$5.9M 59.7K shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$4.8M 48.6K shares
VICTORY CAPITAL MANAGEMENT INC Long Only Manager	$4.8M 48.6K shares
M Mercuria Capital Strategies, LLC Institution	$4.6M 46.5K shares
C Cubist Systematic Strategies, LLC Institution	$3.8M 39.0K shares
FRANKLIN RESOURCES INC Institution	$3.4M 34.2K shares
D De Lisle Partners LLP Institution	$2.1M 21.0K shares

Exited Positions

Institution	Previous Position
G Gagnon Advisors, LLC Hedge Fund•Long/Short	$11.7M 180.4K shares
S S Squared Technology, LLC Hedge Fund•Long/Short	$2.6M 39.6K shares
J Jump Financial, LLC Institution	$1.1M 16.9K shares
Change Path, LLC RIA/Wealth	$423.5K 6.5K shares
COZAD ASSET MANAGEMENT INC RIA/Wealth	$331.9K 5.1K shares
Arete Wealth Advisors, LLC RIA/Wealth	$306.9K 4.7K shares
S State of Wyoming Institution	$278.9K 4.3K shares
D DRW Securities, LLC Institution	$256.1K 4.0K shares
Kathmere Capital Management, LLC RIA/Wealth	$226.3K 3.5K shares
TWIN PEAKS WEALTH ADVISORS, LLC RIA/Wealth	$76.4K 800.0 shares

Options Activity

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

Call Positions: 5
Call Value: $20.4M
Put Positions: 4
Put Value: $18.1M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$12.6M 1.3K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$3.4M 348.0 contracts
W WOLVERINE TRADING, LLC Institution	$3.1M 298.0 contracts
J JANE STREET GROUP, LLC Institution	$1.3M 134.0 contracts
Triumph Capital Management RIA/Wealth	$9.8K 1.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$9.2M 938.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$5.7M 578.0 contracts
W WOLVERINE TRADING, LLC Institution	$1.7M 165.0 contracts
J JANE STREET GROUP, LLC Institution	$1.5M 149.0 contracts

Most Committed Institutions

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

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
M Mercuria Capital Strategies, LLC Institution	-	6.02% $4.6M	0.20% 46.5K shares	Q3 2025 Held for 2 months	$75.9M
H Hel Ved Capital Management Ltd Institution	-	3.92% $6.7M	0.30% 68.7K shares	Q3 2025 Held for 2 months	$172.2M
GAGNON SECURITIES LLC RIA/Wealth	Neil Joseph Gagnon CEO	1.29% $6.4M	0.28% 64.8K shares	Q3 2013 Held for 12y 2m	$493.8M
Portolan Capital Management, LLC Hedge Fund•Long/Short	George Frederic Mccabe CIO	1.04% $19.2M	0.85% 195.8K shares	Q4 2024 Held for 11 months	$1.8B
G Ground Swell Capital, LLC Hedge Fund•Multi-Strategy	Kellen Lee Cooney Member	0.98% $449.9K	0.02% 4.6K shares	Q3 2025 Held for 2 months	$45.8M
WESTBOURNE INVESTMENTS, INC. RIA/Wealth	Robert Douglas Long CEO	0.76% $1.6M	0.08% 18.7K shares	Q3 2025 Held for 2 months	$209.0M
NAVELLIER & ASSOCIATES INC RIA/Wealth	Louis Gene Navellier CEO	0.64% $6.3M	0.28% 64.2K shares	Q1 2025 Held for 8 months	$983.4M
K KADENSA CAPITAL Ltd Institution	-	0.60% $5.9M	0.26% 59.7K shares	Q3 2025 Held for 2 months	$971.1M
B Busey Trust CO RIA/Wealth	Jeffrey Daniel Burgess CEO	0.60% $21.6M	0.96% 220.0K shares	Q3 2025 Held for 2 months	$3.6B
EAM Investors, LLC Long Only Manager	John Currier Goodson President	0.57% $5.0M	0.22% 51.7K shares	Q2 2025 Held for 5 months	$873.4M