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NYSE · CIK 0001758766

STEM STEM, INC.

Insider trading from SEC Form 4. Last filing 13 d ago. Close $4.16 on Oct 9, 2026, +9% from the 52-week low and -86% from the high.

Last 90 days

Net insider value
-$682
more sold than bought
Buys
0
$0 by 0 insiders
Sells
1
$682 by 1 insider
Insiders on file
15
with a Form 4 at this company

Price and insider trades, last year

STEMOct 9, 2026 · close 4.16

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at STEM, INC., scored.

ScoreInsiderValueHoldingsPrice contextFiled
5WeakMichael James Carlson
President, Managed Services
sell
$682
146 shares
-1%-
20WeakMatthew Tappin
President, Software Products
sell
$4,354
402 shares
-12%+80% from low-64% from high
20WeakMichael James Carlson
President, Managed Services
sell
$23k
2,079 shares
-10%+84% from low-64% from high
15WeakSaul R. Laureles
Chief Legal Officer
sell
$10k
942 shares
-3%+84% from low-64% from high
42ModerateArun Narayanan
Chief Executive Officer
sell
$57k
5,145 shares
-28%+84% from low-64% from high
25WeakMatthew Tappin
President, Software Products
sell
$7,284
655 shares
-17%+84% from low-64% from high
30WeakSaul R. Laureles
Chief Legal Officer
sell
$2,824
292 shares
-1%+61% from low-68% from high
40ModerateMatthew Tappin
President, Software Products
sell
$4,751
485 shares
-17%+61% from low-68% from high
33WeakMatthew Tappin
President, Software Products
sell
$4,172
366 shares
-14%+91% from low-62% from high
59ModerateMatthew Tappin
President, Software Products
sell
$170k
9,584 shares
-84%+216% from low-37% from high
50ModerateRahul Shukla
Chief Accounting Officer
sell
$60k
3,674 shares
-100%+174% from low-46% from high
0WeakMatthew Tappin
President, Software Division
sell
$9,895
21,987 shares
-37%+66% from low-60% from high
20WeakRahul Shukla
Chief Accounting Officer
sell
$23k
44,618 shares
-558%+123% from low-43% from high
0WeakSaul R. Laureles
Chief Legal Officer
sell
$430
809 shares
-0%+75% from low-58% from high
10WeakMichael James Carlson
Chief Operating Officer
sell
$11k
27,739 shares
-12%-
0WeakHofeldt Albert
Chief Technology Officer
sell
$8,331
13,294 shares
-7%-

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Mar 12, 2025 Albert Hofeldt
Officer
14,020
0.01% of outstanding
$5,670Mar 12, 2025$8,331
Mar 12, 2025 Carlson Michael James
Officer
27,739
0.02% of outstanding
$11kMar 12, 2025none
Mar 7, 2025 Cunningham Gerard
Director
78,346
0.05% of outstanding
$33kMar 7, 2025none
Feb 20, 2025 Albert Hofeldt
Officer
13,294
0.01% of outstanding
$8,331Feb 20, 2025none

Transactions

The last 100 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Sep 26, 2026Michael James Carlson
President, Managed Services
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+305$4.48$1,36626,16613 d ago
Sep 29, 2026Michael James Carlson
President, Managed Services
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-146$4.67$68226,02013 d ago
Sep 26, 2026Michael James Carlson
President, Managed Services
MOption exercise
Restricted Stock Unitderivative
-305$0.00$0013 d ago
Jun 3, 2026David S Buzby
See Remarks
AGrant or award
Restricted Stock Unitderivative
+12,168$0.00$012,168Jun 4, 2026
Mar 11, 2026Matthew Tappin
President, Software Products
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share10b5-1
-402$10.83$4,3542,823Mar 13, 2026
Mar 7, 2026Arun Narayanan
Chief Executive Officer
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+12,500--12,500Mar 10, 2026
Mar 7, 2026Michael James Carlson
President, Managed Services
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+3,541--21,537Mar 10, 2026
Mar 7, 2026Saul R. Laureles
Chief Legal Officer
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+2,916--28,392Mar 10, 2026
Mar 7, 2026Matthew Tappin
President, Software Products
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+1,458--3,880Mar 10, 2026
Mar 10, 2026Michael James Carlson
President, Managed Services
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-2,079$11.12$23k19,458Mar 10, 2026
Mar 10, 2026Saul R. Laureles
Chief Legal Officer
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-942$11.12$10k27,450Mar 10, 2026
Mar 7, 2026Arun Narayanan
Chief Executive Officer
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+5,625--18,125Mar 10, 2026
Mar 10, 2026Matthew Tappin
President, Software Products
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-655$11.12$7,2843,225Mar 10, 2026
Mar 7, 2026Matthew Tappin
President, Software Products
MOption exercise
Restricted Stock Unitderivative
-1,458$0.00$01,459Mar 10, 2026
Mar 10, 2026Arun Narayanan
Chief Executive Officer
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-5,145$11.12$57k12,980Mar 10, 2026
Mar 7, 2026Michael James Carlson
President, Managed Services
MOption exercise
Restricted Stock Unitderivative
-3,541$0.00$03,516Mar 10, 2026
Mar 7, 2026Saul R. Laureles
Chief Legal Officer
MOption exercise
Restricted Stock Unitderivative
-2,916$0.00$02,918Mar 10, 2026
Mar 7, 2026Arun Narayanan
Chief Executive Officer
MOption exercise
Restricted Stock Unitderivative
-12,500$0.00$025,000Mar 10, 2026
Mar 7, 2026Arun Narayanan
Chief Executive Officer
MOption exercise
Restricted Stock Unitderivative
-5,625$0.00$05,625Mar 10, 2026
Mar 3, 2026Matthew Tappin
President, Software Products
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-300$9.67$2,9012,607Mar 4, 2026
Mar 3, 2026Saul R. Laureles
Chief Legal Officer
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-292$9.67$2,82425,476Mar 4, 2026
Mar 4, 2026Matthew Tappin
President, Software Products
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-185$10.00$1,8502,422Mar 4, 2026
Feb 26, 2026Arun Narayanan
Chief Executive Officer
AGrant or award
Restricted Stock Unitderivative
+57,600$0.00$057,600Mar 2, 2026
Mar 1, 2026Saul R. Laureles
Chief Legal Officer
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+904--25,768Mar 2, 2026
Feb 26, 2026Michael James Carlson
President, Managed Services
AGrant or award
Restricted Stock Unitderivative
+25,800$0.00$025,800Mar 2, 2026
Mar 1, 2026Matthew Tappin
President, Software Products
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+670--2,907Mar 2, 2026
Feb 26, 2026Brian Musfeldt
Chief Financial Officer
AGrant or award
Restricted Stock Unitderivative
+25,800$0.00$025,800Mar 2, 2026
Feb 26, 2026Brian Musfeldt
Chief Financial Officer
AGrant or award
Performance Stock Unitderivative
+17,200$0.00$017,200Mar 2, 2026
Feb 26, 2026Arun Narayanan
Chief Executive Officer
AGrant or award
Performance Stock Unitderivative
+38,400$0.00$038,400Mar 2, 2026
Feb 26, 2026Matthew Tappin
President, Software Products
AGrant or award
Restricted Stock Unitderivative
+25,800$0.00$025,800Mar 2, 2026
Feb 26, 2026Michael James Carlson
President, Managed Services
AGrant or award
Performance Stock Unitderivative
+17,200$0.00$017,200Mar 2, 2026
Feb 26, 2026Saul R. Laureles
Chief Legal Officer
AGrant or award
Restricted Stock Unitderivative
+18,000$0.00$018,000Mar 2, 2026
Feb 26, 2026Matthew Tappin
President, Software Products
AGrant or award
Performance Stock Unitderivative
+17,200$0.00$017,200Mar 2, 2026
Jan 27, 2025Arun Narayanan
Chief Executive Officer
AGrant or award
Performance Stock Unitderivative
+16,250$0.00$016,250Mar 2, 2026
Feb 26, 2026Saul R. Laureles
Chief Legal Officer
AGrant or award
Performance Stock Unitderivative
+12,000$0.00$012,000Mar 2, 2026
Mar 1, 2026Saul R. Laureles
Chief Legal Officer
MOption exercise
Restricted Stock Unitderivative
-904$0.00$00Mar 2, 2026
Mar 1, 2026Matthew Tappin
President, Software Products
MOption exercise
Restricted Stock Unitderivative
-670$0.00$00Mar 2, 2026
Feb 20, 2026Matthew Tappin
President, Software Products
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-366$11.40$4,1722,237Feb 23, 2026
Feb 19, 2026Michael James Carlson
President, Managed Services
FTax withholding
Common Stock, Par Value $0.0001 Per Share
-730$11.30$8,24917,996Feb 19, 2026
Feb 19, 2026Saul R. Laureles
Chief Legal Officer
FTax withholding
Common Stock, Par Value $0.0001 Per Share
-536$11.30$6,05724,864Feb 19, 2026
Feb 19, 2026Matthew Tappin
President, Software Products
FTax withholding
Common Stock, Par Value $0.0001 Per Share
-522$11.30$5,8992,603Feb 19, 2026
Feb 15, 2026Michael James Carlson
President, Managed Services
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+1,342--18,726Feb 18, 2026
Feb 15, 2026Saul R. Laureles
Chief Legal Officer
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+1,790--25,400Feb 18, 2026
Feb 15, 2026Matthew Tappin
President, Software Products
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+1,253--3,125Feb 18, 2026
Feb 15, 2026Michael James Carlson
President, Managed Services
MOption exercise
Restricted Stock Unitderivative
-1,342$0.00$00Feb 18, 2026
Feb 15, 2026Saul R. Laureles
Chief Legal Officer
MOption exercise
Restricted Stock Unitderivative
-1,790$0.00$00Feb 18, 2026
Feb 15, 2026Matthew Tappin
President, Software Products
MOption exercise
Restricted Stock Unitderivative
-1,253$0.00$00Feb 18, 2026
Jan 5, 2026Jeffrey T Cabot
Chief Accounting Officer
AGrant or award
Restricted Stock Unitderivative
+7,000$0.00$07,000Jan 7, 2026
Jan 5, 2026Jeffrey T Cabot
Chief Accounting Officer
AGrant or award
Performance Stock Unitderivative
+3,500$0.00$03,500Jan 7, 2026
Jan 5, 2026Jeffrey T Cabot
Chief Accounting Officer
AGrant or award
Stock Optionderivative
+3,500$0.00$03,500Jan 7, 2026
Nov 11, 2025Matthew Tappin
President, Software Products
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-9,584$17.70$170k1,872Nov 24, 2025
Nov 18, 2025Rahul Shukla
Chief Accounting Officer
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share
-3,674$16.21$60k0Nov 19, 2025
Nov 7, 2025Michael James Carlson
President, Managed Services
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+13,750--24,127Nov 12, 2025
Nov 7, 2025Saul R. Laureles
Chief Legal Officer
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+13,750--26,989Nov 12, 2025
Nov 7, 2025Rahul Shukla
Chief Accounting Officer
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+5,750--5,750Nov 12, 2025
Nov 7, 2025Matthew Tappin
President, Software Products
MOption exercise
Common Stock, Par Value $0.0001 Per Share
+15,000--16,872Nov 12, 2025
Nov 10, 2025Michael James Carlson
President, Managed Services
FTax withholding
Common Stock, Par Value $0.0001 Per Share
-6,743$18.27$123k17,384Nov 12, 2025
Nov 10, 2025Saul R. Laureles
Chief Legal Officer
FTax withholding
Common Stock, Par Value $0.0001 Per Share
-3,379$18.27$62k23,610Nov 12, 2025
Nov 10, 2025Rahul Shukla
Chief Accounting Officer
FTax withholding
Common Stock, Par Value $0.0001 Per Share
-2,076$18.27$38k3,674Nov 12, 2025
Nov 10, 2025Matthew Tappin
President, Software Products
FTax withholding
Common Stock, Par Value $0.0001 Per Share
-5,416$18.27$99k11,456Nov 12, 2025
Nov 7, 2025Michael James Carlson
President, Managed Services
MOption exercise
Restricted Stock Unitderivative
-13,750$0.00$00Nov 12, 2025
Nov 7, 2025Saul R. Laureles
Chief Legal Officer
MOption exercise
Restricted Stock Unitderivative
-13,750$0.00$00Nov 12, 2025
Nov 7, 2025Rahul Shukla
Chief Accounting Officer
MOption exercise
Restricted Stock Unitderivative
-5,750$0.00$00Nov 12, 2025
Nov 7, 2025Matthew Tappin
President, Software Products
MOption exercise
Restricted Stock Unitderivative
-15,000$0.00$00Nov 12, 2025
Jul 17, 2025Brian Musfeldt
Chief Financial Officer
AGrant or award
Restricted Stock Unitderivative
+2,500$0.00$02,500Oct 2, 2025
Jul 17, 2025Brian Musfeldt
Chief Financial Officer
AGrant or award
Performance Stock Unitderivative
+6,750$0.00$06,750Oct 2, 2025
Jul 17, 2025Brian Musfeldt
Chief Financial Officer
AGrant or award
Stock Optionderivative
+1,250$0.00$01,250Oct 2, 2025
Jul 17, 2025Brian Musfeldt
Chief Financial Officer
AGrant or award
Restricted Stock Unitderivative
+11,000$0.00$011,000Aug 19, 2025
Jul 17, 2025Brian Musfeldt
Chief Financial Officer
AGrant or award
Performance Stock Unitderivative
+5,500$0.00$05,500Aug 19, 2025
Jul 17, 2025Brian Musfeldt
Chief Financial Officer
AGrant or award
Stock Optionderivative
+5,500$0.00$05,500Aug 19, 2025
Jul 28, 2025Michael James Carlson
See Remarks
AGrant or award
Restricted Stock Unitderivative
+10,000$0.00$010,000Jul 30, 2025
Jul 28, 2025Saul R. Laureles
CHIEF LEGAL OFFICER
AGrant or award
Restricted Stock Unitderivative
+10,000$0.00$010,000Jul 30, 2025
Jul 28, 2025Matthew Tappin
PRESIDENT, SOFTWARE DIVISION
AGrant or award
Restricted Stock Unitderivative
+10,000$0.00$010,000Jul 30, 2025
Jul 28, 2025Michael James Carlson
See Remarks
AGrant or award
Performance Stock Unitderivative
+10,000$0.00$010,000Jul 30, 2025
Jul 28, 2025Saul R. Laureles
CHIEF LEGAL OFFICER
AGrant or award
Performance Stock Unitderivative
+10,000$0.00$010,000Jul 30, 2025
Jul 28, 2025Matthew Tappin
PRESIDENT, SOFTWARE DIVISION
AGrant or award
Performance Stock Unitderivative
+10,000$0.00$010,000Jul 30, 2025
Jul 3, 2025David S Buzby
See Remarks
GGift
Common Stock, Par Value $0.0001 Per Share
-5,511$0.00$0478Jul 8, 2025
Jul 3, 2025David S Buzby
See Remarks
GGift
Common Stock, Par Value $0.0001 Per Shareindirect: By the David S. Buzby Revocable Trust
+5,511$0.00$037,571Jul 8, 2025
Jun 30, 2025Michael James Carlson
See Remarks
AGrant or award
Restricted Stock Unitderivative
+11,000$0.00$011,000Jul 2, 2025
Jun 30, 2025Saul R. Laureles
CHIEF LEGAL OFFICER
AGrant or award
Restricted Stock Unitderivative
+11,000$0.00$011,000Jul 2, 2025
Jun 30, 2025Rahul Shukla
CHIEF ACCOUNTING OFFICER
AGrant or award
Restricted Stock Unitderivative
+4,500$0.00$04,500Jul 2, 2025
Jun 30, 2025Matthew Tappin
PRESIDENT, SOFTWARE DIVISION
AGrant or award
Restricted Stock Unitderivative
+11,000$0.00$011,000Jul 2, 2025
Jun 30, 2025Michael James Carlson
See Remarks
AGrant or award
Performance Stock Unitderivative
+5,500$0.00$05,500Jul 2, 2025
Jun 30, 2025Saul R. Laureles
CHIEF LEGAL OFFICER
AGrant or award
Performance Stock Unitderivative
+5,500$0.00$05,500Jul 2, 2025
Jun 30, 2025Rahul Shukla
CHIEF ACCOUNTING OFFICER
AGrant or award
Performance Stock Unitderivative
+2,250$0.00$02,250Jul 2, 2025
Jun 30, 2025Matthew Tappin
PRESIDENT, SOFTWARE DIVISION
AGrant or award
Performance Stock Unitderivative
+5,500$0.00$05,500Jul 2, 2025
Jun 30, 2025Michael James Carlson
See Remarks
AGrant or award
Stock Optionsderivative
+5,500$0.00$05,500Jul 2, 2025
Jun 30, 2025Saul R. Laureles
CHIEF LEGAL OFFICER
AGrant or award
Stock Optionsderivative
+5,500$0.00$05,500Jul 2, 2025
Jun 30, 2025Rahul Shukla
CHIEF ACCOUNTING OFFICER
AGrant or award
Stock Optionsderivative
+2,250$0.00$02,250Jul 2, 2025
Jun 30, 2025Matthew Tappin
PRESIDENT, SOFTWARE DIVISION
AGrant or award
Stock Optionsderivative
+5,500$0.00$05,500Jul 2, 2025
May 29, 2025Matthew Tappin
President, Software Division
MOption exercise
Common Stock, Par Value $0.0001 Per Share10b5-1
+2,775$0.00$059,445Jun 18, 2025
May 30, 2025Matthew Tappin
President, Software Division
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share10b5-1
-1,164$0.45$52558,281Jun 18, 2025
Jun 16, 2025Matthew Tappin
President, Software Division
SOpen-market sale
Common Stock, Par Value $0.0001 Per Share10b5-1
-20,823$0.45$9,37037,458Jun 18, 2025
May 29, 2025Matthew Tappin
President, Software Division
MOption exercise
Restricted Stock Unitderivative10b5-1
-2,775$0.00$0396,784Jun 18, 2025
Jun 4, 2025Ira M Birns
director
AGrant or award
Restricted Stock Unitderivative
+149,723$0.00$0149,723Jun 6, 2025
Jun 4, 2025Adam Daley
director
AGrant or award
Restricted Stock Unitderivative
+149,723$0.00$0149,723Jun 6, 2025
Jun 4, 2025Vasudevan Guruswamy
director
AGrant or award
Restricted Stock Unitderivative
+149,723$0.00$0149,723Jun 6, 2025
Jun 4, 2025Krishna Shivram
director
AGrant or award
Restricted Stock Unitderivative
+149,723$0.00$0149,723Jun 6, 2025
Jun 4, 2025Anil Tammineedi
director
AGrant or award
Restricted Stock Unitderivative
+149,723$0.00$0149,723Jun 6, 2025
Jun 4, 2025Laura D Tyson
director
AGrant or award
Restricted Stock Unitderivative
+149,723$0.00$0149,723Jun 6, 2025

Insiders

Everyone who has filed a Form 4 here.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

STEM insider trading: STEM, INC. | InsiderTell