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Canada Professional & Commercial Services

Northstar Clean Technologies Inc (ROOF)

Track

Over the last 90 days, Northstar Clean Technologies Inc. has seen insider buying activity totaling $40,132.5, with two directors making purchases. This contrasts with earlier selling in late 2025. The stock has experienced a 5.0% price decrease over the past 90 days. The last earnings report showed a 33.5% miss.
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Ticker: ROOF Exchange: CVE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Borkowski, James Corey
Director of Issuer
1 purchase — total 2,500 CAD
Buy 27 Apr 2026
Value CA$246,225.99 | Price 223.16 | Shares 70,739
Buy 24 Apr 2026
Value CA$2,452,468.90 | Price 329.12 | Shares 89,970
Buy 23 Apr 2026
Value CA$4,000.00 | Price 0.20 | Shares 20,000
Buy 20 Apr 2026
Value CA$7,790.00 | Price 0.19 | Shares 41,000
Buy 17 Apr 2026
Value CA$3,000.00 | Price 0.20 | Shares 15,000
Buy 13 Apr 2026
Value CA$5,697.50 | Price 0.22 | Shares 26,500
Buy 13 Apr 2026
Value CA$15,435.00 | Price 0.21 | Shares 73,500
Sale 22 Sep 2025
Value CA$23,984.83 | Price 0.33 | Shares 73,393
Sale 22 Sep 2025
Value CA$18,809.95 | Price 0.33 | Shares 57,558
Sale 26 Aug 2025
Value CA$27,106.50 | Price 0.32 | Shares 85,000
Buy 14 Aug 2025
Value CA$16,500.00 | Price 0.33 | Shares 50,000
Buy 25 Jul 2025
Value CA$49,999.80 | Price 0.30 | Shares 166,666
Buy 25 Jul 2025
Value CA$9,999.90 | Price 0.30 | Shares 33,333
Buy 25 Jul 2025
Value CA$100,050.00 | Price 0.30 | Shares 333,500
Buy 25 Jul 2025
Value CA$24,999.90 | Price 0.30 | Shares 83,333
Buy 25 Jul 2025
Value CA$24,999.90 | Price 0.30 | Shares 83,333
Buy 25 Jul 2025
Value CA$24,999.90 | Price 0.30 | Shares 83,333
Buy 7 May 2025
Value CA$1,026.00 | Price 0.38 | Shares 2,700
Buy 15 Jan 2025
Value CA$19,000.00 | Price 0.38 | Shares 50,000
Buy 11 Sep 2024
Value CA$5,400.00 | Price 0.18 | Shares 30,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-06 2026-04-27 B Purchase
3.5
Borkowski, James Corey

Director of Issuer

Non-Executive Director
70,739 +46.5%
223.16
CA$246,226 		70,739 +46.5% 223.16 CA$246,226
2026-04-24 2026-04-24 B Purchase
1.5
Currie, Neil

Director of Issuer

Non-Executive Director
89,970 +17.1%
329.12
CA$2,452,469 		89,970 +17.1% 329.12 CA$2,452,469
2026-04-23 2026-04-23 B Purchase
3.5
Borkowski, James Corey

Director of Issuer

Non-Executive Director
23,712 -18.6%
427.32
CA$4,214,127 		23,712 -18.6% 427.32 CA$4,214,127
2026-04-22 2026-04-20 B Purchase
1.5
Currie, Neil

Director of Issuer

Non-Executive Director
41,000 +2.1%
0.19
CA$7,790 		41,000 +2.1% 0.19 CA$7,790
2026-04-23 2026-04-17 B Purchase
3.5
Borkowski, James Corey

Director of Issuer

Non-Executive Director
15,000 +1.0%
0.20
CA$3,000 		15,000 +1.0% 0.20 CA$3,000
2026-04-16 2026-04-13 B Purchase
1.5
Currie, Neil

Director of Issuer

Non-Executive Director
26,500 +1.4%
0.22
CA$5,698 		26,500 +1.4% 0.22 CA$5,698
2026-04-16 2026-04-13 B Purchase
1.5
Currie, Neil

Director of Issuer

Non-Executive Director
73,500 +4.2%
0.21
CA$15,435 		73,500 +4.2% 0.21 CA$15,435
2025-09-26 2025-09-22 S Sale
3.0
mills, aidan

Senior Officer of Issuer

Officer
73,393 -3.3%
0.33
CA$23,985 		73,393 -3.3% 0.33 CA$23,985
2025-09-25 2025-09-22 S Sale
3.0
Johnson, Gordon Henry Joseph Johnson

Director of Issuer, Senior Officer of Issuer

Executive Director
57,558
0.33
CA$18,810 		57,558 0.33 CA$18,810
2025-09-13 2025-08-26 S Sale
3.0
Johnson, Gordon Henry Joseph Johnson

Director of Issuer, Senior Officer of Issuer

Executive Director
85,000 -5.5%
0.32
CA$27,106 		85,000 -5.5% 0.32 CA$27,106
2025-08-14 2025-08-14 B Purchase
1.5
Currie, Neil

Director of Issuer

Non-Executive Director
50,000 +2.9%
0.33
CA$16,500 		50,000 +2.9% 0.33 CA$16,500
2025-07-29 2025-07-25 B Purchase
3.0
mills, aidan

Senior Officer of Issuer

Officer
166,666 +8.9%
0.30
CA$50,000 		166,666 +8.9% 0.30 CA$50,000
2025-07-28 2025-07-25 B Purchase
1.4
Gingrich, Sarah

Senior Officer of Issuer

Officer
33,333
0.30
CA$10,000 		33,333 0.30 CA$10,000
2025-07-28 2025-07-25 B Purchase
1.5
Currie, Neil

Director of Issuer

Non-Executive Director
333,500 +24.1%
0.30
CA$100,050 		333,500 +24.1% 0.30 CA$100,050
2025-07-28 2025-07-25 B Purchase
3.5
Borkowski, James Corey

Director of Issuer

Non-Executive Director
83,333 +6.0%
0.30
CA$25,000 		83,333 +6.0% 0.30 CA$25,000
2025-07-25 2025-07-25 B Purchase
1.3
Phaneuf, Gregory Gerald

Senior Officer of Issuer

Officer
83,333
0.30
CA$25,000 		83,333 0.30 CA$25,000
2025-07-25 2025-07-25 B Purchase
Chiu, Patrick

Director of Issuer

Non-Executive Director
83,333
0.30
CA$25,000 		83,333 0.30 CA$25,000
2025-05-12 2025-05-07 B Purchase
1.4
Gingrich, Sarah

Senior Officer of Issuer

Officer
2,700
0.38
CA$1,026 		2,700 0.38 CA$1,026
2025-01-15 2025-01-15 B Purchase
1.5
Currie, Neil

Director of Issuer

Non-Executive Director
50,000 +3.8%
0.38
CA$19,000 		50,000 +3.8% 0.38 CA$19,000
2024-09-17 2024-09-11 B Purchase
3.5
Borkowski, James Corey

Director of Issuer

Non-Executive Director
30,000 +2.2%
0.18
CA$5,400 		30,000 +2.2% 0.18 CA$5,400
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