STEM
STEM (STEM)
NYSE
$7.79-$0.27 (-3.34%)
Price as of Jun 23, 2026 5:58 PM EDT
  • $72.2M
    Market Cap
  • 8.33%
    1-Year Change
  • Utilities - Renewable
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
127.69%
11.4M
+150,227 (+1.31%)
Dec 31, 2024
BLACKROCK INC.
121.74%
10.9M
-401,086 (-3.68%)
Jun 30, 2024
ONTARIO TEACHERS PENSION PLAN BOARD
57.28%
5.1M
-2.2M (-43.68%)
Dec 31, 2021
SENATOR INVESTMENT GROUP LP
16.19%
1.4M
+25,000 (+1.72%)
Dec 31, 2021
AUTONOMY CAPITAL (JERSEY) L.P.
10.71%
959,037
0 (0.00%)
Dec 31, 2023
ZIMMER PARTNERS, LP
10.61%
950,000
+325,000 (+34.21%)
Dec 31, 2021
CREDIT SUISSE AG/
6.26%
560,885
-194,063 (-34.60%)
Mar 31, 2024

Current Ownership Distribution

  • Institutions1.2B (65.23%)
  • Mutual Funds592.0M (33.38%)
  • Insiders24.7M (1.39%)
  • Other0 (0.00%)

Insider Transactions

  • 1.39% (24.7M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 4
    Number of InsiderSelling (last 12 months)
  • $1.0M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Tappin Matthew
President, Software Products
Sell
Mar 10, 2026
$7,283.60
655
$11.12
3,225
Laureles Saul R.
Chief Legal Officer
Sell
Mar 10, 2026
$10,475.04
942
$11.12
27,450
Carlson Michael James
President, Managed Services
Sell
Mar 10, 2026
$23,118.48
2,079
$11.12
19,458
Laureles Saul R.
Chief Legal Officer
Exempt
Mar 07, 2026
$0.00
2,916
$0.00
2,918
Tappin Matthew
President, Software Products
Exempt
Mar 07, 2026
$0.00
1,458
$0.00
1,459
Laureles Saul R.
Chief Legal Officer
Exempt
Mar 07, 2026
$0.00
2,916
$0.00
28,392
Carlson Michael James
President, Managed Services
Exempt
Mar 07, 2026
$0.00
3,541
$0.00
3,516
Tappin Matthew
President, Software Products
Exempt
Mar 07, 2026
$0.00
1,458
$0.00
3,880
Carlson Michael James
President, Managed Services
Exempt
Mar 07, 2026
$0.00
3,541
$0.00
21,537
Tappin Matthew
President, Software Products
Sell
Mar 04, 2026
$1,850.00
185
$10.00
2,422
Laureles Saul R.
Chief Legal Officer
Sell
Mar 03, 2026
$2,823.64
292
$9.67
25,476
Tappin Matthew
President, Software Products
Sell
Mar 03, 2026
$2,901.00
300
$9.67
2,607
Tappin Matthew
President, Software Products
Exempt
Mar 01, 2026
$0.00
670
$0.00
0
Tappin Matthew
President, Software Products
Exempt
Mar 01, 2026
$0.00
670
$0.00
2,907
Musfeldt Brian
Chief Financial Officer
Award
Feb 26, 2026
$0.00
25,800
$0.00
25,800
Narayanan Arun
Chief Executive Officer
Award
Feb 26, 2026
$0.00
57,600
$0.00
57,600
Musfeldt Brian
Chief Financial Officer
Award
Feb 26, 2026
$0.00
17,200
$0.00
17,200
Tappin Matthew
President, Software Products
Award
Feb 26, 2026
$0.00
25,800
$0.00
25,800
Narayanan Arun
Chief Executive Officer
Award
Feb 26, 2026
$0.00
38,400
$0.00
38,400
Tappin Matthew
President, Software Products
Award
Feb 26, 2026
$0.00
17,200
$0.00
17,200
Tappin Matthew
President, Software Products
Sell
Feb 20, 2026
$4,172.40
366
$11.40
2,237
Tappin Matthew
President, Software Products
In Kind
Feb 19, 2026
$5,898.60
522
$11.30
2,603
Laureles Saul R.
Chief Legal Officer
In Kind
Feb 19, 2026
$6,056.80
536
$11.30
24,864
Carlson Michael James
President, Managed Services
Exempt
Feb 15, 2026
$0.00
1,342
$0.00
0
Laureles Saul R.
Chief Legal Officer
Exempt
Feb 15, 2026
$0.00
1,790
$0.00
0
Tappin Matthew
President, Software Products
Exempt
Feb 15, 2026
$0.00
1,253
$0.00
0
Laureles Saul R.
Chief Legal Officer
Exempt
Feb 15, 2026
$0.00
1,790
$0.00
25,400
Carlson Michael James
President, Managed Services
Exempt
Feb 15, 2026
$0.00
1,342
$0.00
18,726
Tappin Matthew
President, Software Products
Exempt
Feb 15, 2026
$0.00
1,253
$0.00
3,125
Shukla Rahul
Chief Accounting Officer
Sell
Nov 18, 2025
$59,555.54
3,674
$16.21
0