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CIK 0001758766 · Non-accelerated filer<br>Smaller reporting company

Ticker
STEM
Exchange
NYSE
Industry
Services-Computer Integrated Systems Design
FY end
Dec 31
Entity type
operating
EIN
264466193
Phone
877-374-7836
Business address
1400 POST OAK BOULEVARD, SUITE 560, HOUSTON, TX, 77056
Former names
Star Peak Energy Transition Corp., Star Peak Energy Acquisition Corp.
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$682
in 1 filing

Net −$682. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Carlson Michael James −$682 President, Managed Services sold <1% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2025-11-07 Shukla Rahul Chief Accounting Officer Option exercise +5,750 5,750
2025-11-07 Shukla Rahul Chief Accounting Officer Option exercise · Restricted Stock Unit −5,750 0
2025-11-07 Laureles Saul R. Chief Legal Officer Option exercise +13,750 26,989
2025-11-07 Laureles Saul R. Chief Legal Officer Option exercise · Restricted Stock Unit −13,750 0
2025-07-28 Carlson Michael James See Remarks Grant or award · Restricted Stock Unit +10,000 10,000
2025-07-28 Carlson Michael James See Remarks Grant or award · Performance Stock Unit +10,000 10,000
2025-07-28 Tappin Matthew PRESIDENT, SOFTWARE DIVISION Grant or award · Restricted Stock Unit +10,000 10,000
2025-07-28 Tappin Matthew PRESIDENT, SOFTWARE DIVISION Grant or award · Performance Stock Unit +10,000 10,000
2025-07-28 Laureles Saul R. CHIEF LEGAL OFFICER Grant or award · Restricted Stock Unit +10,000 10,000
2025-07-28 Laureles Saul R. CHIEF LEGAL OFFICER Grant or award · Performance Stock Unit +10,000 10,000
2025-07-17 Musfeldt Brian Chief Financial Officer Grant or award · Restricted Stock Unit +2,500 2,500
2025-07-17 Musfeldt Brian Chief Financial Officer Grant or award · Performance Stock Unit +6,750 6,750
2025-07-17 Musfeldt Brian Chief Financial Officer Grant or award · Stock Option +1,250 1,250
2025-07-17 Musfeldt Brian Chief Financial Officer Grant or award · Restricted Stock Unit +11,000 11,000
2025-07-17 Musfeldt Brian Chief Financial Officer Grant or award · Performance Stock Unit +5,500 5,500
2025-07-17 Musfeldt Brian Chief Financial Officer Grant or award · Stock Option +5,500 5,500
2025-07-03 BUZBY DAVID S Director Gift −5,511 478
2025-07-03 BUZBY DAVID S Director Gift +5,511 37,571
2025-06-30 Carlson Michael James See Remarks Grant or award · Restricted Stock Unit +11,000 11,000
2025-06-30 Carlson Michael James See Remarks Grant or award · Performance Stock Unit +5,500 5,500

Page 6 of 12 · 222 trades