Power Solutions International Inc.

Last updated September 27, 2026

Organization details

Legal name
Power Solutions International Inc.
Former names
Format Inc
Ownership
Public
Status
Active
Sector (GICS)
Industrials
SIC code
3510 — Engines & Turbines
Jurisdiction of incorporation
Illinois
Headquarters city
Wood Dale
Headquarters state / province
Illinois
Headquarters country
United States
Fiscal year end
December
Ticker symbol
PSIX
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001137091
EIN
33-0963637

Board of directors

Director election results

Annual meeting of July 23, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

1 of this board's directors also sit on 2 other boards.

Network of Power Solutions International Inc.'s board connections Assured Guaranty Ltd. Assured Guaranty Ltd. Professional Diversity Network Inc. Professional Diversity... Courtney C. Shea Courtney C. Shea Power Solutions Internatio...
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$0
0 sales by 0 insiders
Date Insider Transaction Shares Price Value
Feb 12, 2026 Li Xun Officer (CFO) Option exercise +7,500 $2.00 $15,000
Feb 12, 2026 Li Xun Officer (CFO) Shares withheld for tax −3,429 $92.72 $317,937
Dec 11, 2025 Hong He Director Grant or award +5,000 — —
Dec 11, 2025 Frank P. Simpkins Director Grant or award +5,000 — —
Dec 11, 2025 Courtney C. Shea Director Grant or award +5,000 — —
Sep 11, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −6,738 $91.72 $618,009
Sep 11, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −19,351 $92.46 $1,789,193
Sep 11, 2025 Hong He Director Open-market sale −1,500 $94.00 $141,000
Sep 11, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −23,231 $93.64 $2,175,351
Sep 11, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −30,519 $94.33 $2,878,857
Sep 10, 2025 Hong He Director Open-market sale −1,000 $95.00 $95,000
Sep 10, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −6,308 $90.28 $569,486
Sep 10, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −5,018 $91.44 $458,846
Sep 10, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −14,557 $92.34 $1,344,193
Sep 10, 2025 Weichai Power Co., Ltd. 10% owner Open-market sale −2,515 $93.50 $235,153

Organizations in the same sector, closest in location and size first.

Questions about Power Solutions International Inc.

How many directors are on Power Solutions International Inc.'s board?

Power Solutions International Inc.'s board has 8 directors: Courtney C. Shea, Frank P. Simpkins, Fuzhang Yu, Hong He, Jiwen Zhang, Kenneth W. Landini, Xuesen Yang and Zhao Jin.

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