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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
2025-05-29 Tappin Matthew President, Software Division Option exercise · Restricted Stock Unit 10b5-1 −2,775 396,784
2025-05-29 TYSON LAURA D Director Option exercise +110,236 159,747
2025-05-29 TYSON LAURA D Director Option exercise · Restricted Stock Unit −110,236 0
2025-05-29 Shivram Krishna Director Option exercise +62,222 62,222
2025-05-29 Shivram Krishna Director Option exercise · Restricted Stock Unit −62,222 0
2025-05-29 Tammineedi Anil Director Option exercise +110,236 159,747
2025-05-29 Tammineedi Anil Director Option exercise · Restricted Stock Unit −110,236 0
2025-05-29 Daley Adam Director Option exercise +110,236 240,996
2025-05-29 Daley Adam Director Option exercise · Restricted Stock Unit −110,236 0
2025-05-29 BUZBY DAVID S Director Option exercise +110,236 230,025
2025-05-29 BUZBY DAVID S Director Option exercise · Restricted Stock Unit −110,236 0
2025-05-29 Guruswamy Vasudevan Director Option exercise +62,222 62,222
2025-05-29 Guruswamy Vasudevan Director Option exercise · Restricted Stock Unit −62,222 0
2025-05-29 Birns Ira M Director Option exercise +110,236 134,420
2025-05-29 Birns Ira M Director Option exercise · Restricted Stock Unit −110,236 0
2025-05-02 Shukla Rahul Chief Accounting Officer Sale −24,567 $0.54 $13K 0
2025-05-02 Laureles Saul R. Chief Legal Officer Sale −809 $0.53 $430 264,792
2025-05-01 Laureles Saul R. Chief Legal Officer Option exercise +3,453 265,601
2025-05-01 Laureles Saul R. Chief Legal Officer Option exercise · Restricted Stock Unit −3,453 445,543
2025-03-17 Guruswamy Vasudevan Director Grant or award · Restricted Stock Unit +62,222 62,222

Page 8 of 12 · 222 trades