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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
2025-06-30 Carlson Michael James See Remarks Grant or award · Stock Options +5,500 5,500
2025-06-30 Tappin Matthew PRESIDENT, SOFTWARE DIVISION Grant or award · Restricted Stock Unit +11,000 11,000
2025-06-30 Tappin Matthew PRESIDENT, SOFTWARE DIVISION Grant or award · Performance Stock Unit +5,500 5,500
2025-06-30 Tappin Matthew PRESIDENT, SOFTWARE DIVISION Grant or award · Stock Options +5,500 5,500
2025-06-30 Shukla Rahul CHIEF ACCOUNTING OFFICER Grant or award · Restricted Stock Unit +4,500 4,500
2025-06-30 Shukla Rahul CHIEF ACCOUNTING OFFICER Grant or award · Performance Stock Unit +2,250 2,250
2025-06-30 Shukla Rahul CHIEF ACCOUNTING OFFICER Grant or award · Stock Options +2,250 2,250
2025-06-30 Laureles Saul R. CHIEF LEGAL OFFICER Grant or award · Restricted Stock Unit +11,000 11,000
2025-06-30 Laureles Saul R. CHIEF LEGAL OFFICER Grant or award · Performance Stock Unit +5,500 5,500
2025-06-30 Laureles Saul R. CHIEF LEGAL OFFICER Grant or award · Stock Options +5,500 5,500
2025-06-16 Tappin Matthew President, Software Division Sale 10b5-1 −20,823 $0.45 $9K 37,458
2025-06-04 Birns Ira M Director Grant or award · Restricted Stock Unit +149,723 149,723
2025-06-04 Guruswamy Vasudevan Director Grant or award · Restricted Stock Unit +149,723 149,723
2025-06-04 TYSON LAURA D Director Grant or award · Restricted Stock Unit +149,723 149,723
2025-06-04 Tammineedi Anil Director Grant or award · Restricted Stock Unit +149,723 149,723
2025-06-04 BUZBY DAVID S Director Grant or award · Restricted Stock Unit +149,723 149,723
2025-06-04 Daley Adam Director Grant or award · Restricted Stock Unit +149,723 149,723
2025-06-04 Shivram Krishna Director Grant or award · Restricted Stock Unit +149,723 149,723
2025-05-30 Tappin Matthew President, Software Division Sale 10b5-1 −1,164 $0.45 $525 58,281
2025-05-29 Tappin Matthew President, Software Division Option exercise 10b5-1 +2,775 59,445

Page 7 of 12 · 222 trades