Borkowski, James Corey — Insider Profile

Insider Profile

Borkowski, James Corey

🔒 Follow — get an alert on any new filing

$ROOF

Companies Filed At

Open-Market Buys (2yr)

$12K

Buy Value (2yr, open-market)

Apr 27, 2026

Most Recent Trade

Currently Accumulating Companies this insider is net-buying on the open market over the last 90 days

$ROOF 48

Northstar Clean Technologies Inc.

$7K · 2 buys · 1 sell

Last buy Apr 27, 2026

Date	Company	Role	Nature	Dir.	Shares	Price	Value	Score
Apr 27, 2026	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Sell	12,500	$0.20	$2K	48
Apr 23, 2026	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	20,000	$0.20	$4K	48
Apr 17, 2026	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	15,000	$0.20	$3K	48
Feb 25, 2026	$ROOF Northstar Clean Technologies Inc.	—	Exercise	Buy	30,000	$0.21	$6K	48
Feb 25, 2026	$ROOF Northstar Clean Technologies Inc.	—	Exercise	Sell	30,000	$0.21	$6K	48
Feb 24, 2026	$ROOF Northstar Clean Technologies Inc.	—	Expiry	Sell	220,000	$0.21	$46K	48
Jan 15, 2026	$ROOF Northstar Clean Technologies Inc.	—	Corp. Event	Buy	24,509	$0.26	$6K	48
Jul 25, 2025	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Sell	83,333	—	—	48
Jul 25, 2025	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Sell	83,333	$0.30	$25K	48
Jul 09, 2025	$ROOF Northstar Clean Technologies Inc.	—	Comp. Grant	Buy	125,000	—	—	48
Sep 19, 2024	$ROOF Northstar Clean Technologies Inc.	—	Comp. Grant	Buy	225,000	$0.21	$48K	48
Sep 11, 2024	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	30,000	$0.18	$5K	48
Oct 24, 2023	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	15,000	$0.13	$2K	48
Aug 16, 2023	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	15,000	$0.17	$3K	48
Oct 14, 2022	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	10,000	$0.19	$2K	48
Oct 11, 2022	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	15,000	$0.20	$3K	48
Feb 08, 2022	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	10,000	$0.28	$3K	48
Jan 26, 2022	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	15,000	$0.29	$4K	48
Jan 21, 2022	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	2,000	$0.29	$580	48
Jan 21, 2022	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	1,000	$0.28	$285	48
Jan 19, 2022	$ROOF Northstar Clean Technologies Inc.	—	Open Market	Buy	14,000	$0.29	$4K	48
Sep 02, 2021	$ROOF Northstar Clean Technologies Inc.	—	Comp. Grant	Buy	100,000	—	—	48

Muted rows are plan purchases, compensation grants, or DRIP — not open-market. Confluence Scores reflect the company's current score, not the score at time of trade.