Insiders / Tappin Matthew

Tappin Matthew

CIK 1986259personinsider
Companies
1
First seen
Feb 18, 2026
Last activity
Mar 13, 2026

Companies

CompanyRoleShares heldPeak heldTradesLatest
Stem, Inc. · STEMExecutive2,82325,80014

All securities held

3 positions · latest reported per filing
CompanySecuritySharesAs of
Stem, Inc.Common Stock, Par Value $0.0001 Per Share2,823Mar 11, 2026
Stem, Inc.Performance Stock UnitDerivative17,200Feb 26, 2026
Stem, Inc.Restricted Stock UnitDerivative1,459Mar 7, 2026

Activity

InsidersInstitutions
This person's insider trades (Form 4), across every company.
DateActionCompanyValueShares ΔPosition afterImpact
Mar 10, 2026SellSTEM
Stem, Inc.
Common Stock, Par Value $0.0001 Per Share
$7.3K-655
-16.88%
3,225
0.03% of shares
low
Feb 19, 2026OtherSTEM
Stem, Inc.
Common Stock, Par Value $0.0001 Per Share
$5.9K-522
-16.70%
2,603
0.03% of shares
low
Mar 11, 2026SellSTEM
Stem, Inc.
Common Stock, Par Value $0.0001 Per Share
$4.4K-402
-12.47%
2,823
0.03% of shares
low
Feb 20, 2026SellSTEM
Stem, Inc.
Common Stock, Par Value $0.0001 Per Share
$4.2K-366
-14.06%
2,237
0.02% of shares
low
Mar 3, 2026SellSTEM
Stem, Inc.
Common Stock, Par Value $0.0001 Per Share
$2.9K-300
-10.32%
2,607
0.03% of shares
low
Mar 4, 2026SellSTEM
Stem, Inc.
Common Stock, Par Value $0.0001 Per Share
$1.9K-185
-7.10%
2,422
0.03% of shares
low
Mar 7, 2026ExerciseSTEM
Stem, Inc.
Restricted Stock Unit
-1K
-49.98%
1,459
0.02% of shares
low
Mar 7, 2026ExerciseSTEM
Stem, Inc.
Common Stock, Par Value $0.0001 Per Share
+1K
+60.20%
3,880
0.04% of shares
low
Mar 1, 2026ExerciseSTEM
Stem, Inc.
Restricted Stock Unit
-670
-100.00%
0
0.00% of shares
low
Feb 26, 2026GrantSTEM
Stem, Inc.
Performance Stock Unit
+17K
17,200
0.18% of shares
low