Watch GRB. Know when insiders buy.
One email the day a filing lands. Free.
GRB
Greenbriar Sustainable Living Inc.
No price history available
A free account adds a watchlist, alerts when insiders, Congress or short sellers move on your tickers, and a morning brief. Sign up
Work order
100
PASS · shorts 100
Insiders, 90 days
0
no open-market filings in 90 days
Shares short
11
CIRO 2026-09-30 · −13K last period
Collision
—
insiders buying while shorts add
Calls on record
0
nobody we score has called it yet
FINANCIALS: SEDAR+ DOES NOT PUBLISH MACHINE-READABLE STATEMENTS; PRICE AND SHORT DATA ONLY FOR CANADIAN NAMES52W —
One year, everything drawn on
No price history available for GRB.
THE WORK ORDER · 2026-10-21
Shorts (latest report): 11 short · −13K last period
Every line of the math100PASS
Short interest
HISTORY| Report | Shares short | Change |
|---|---|---|
| 2026-09-30 | 11 | −13K |
| 2026-09-15 | 13K | −301 |
| 2026-08-31 | 13K | −560 |
| 2026-08-15 | 14K | −3K |
| 2026-07-31 | 17K | +16K |
| 2026-07-15 | 686 | −9K |