Matthew Reade Miller
CIK 1951282 · View on SEC EDGAR ↗
Insider
Activist
First SEC filing: Oct. 24, 2022 · Latest: June 16, 2026
On this page
Insider at
Insider transactions
2 buys (P)
0 sells (S)
Net:
$53,809
+ 4 non-open-market transactions below
Avg return of open purchases vs now:
5.6%
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
4 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 12, 2026 | GRNT | P | 696 | $4.97 | $3,459 | 1,361,509 Direct | +0.05% | Acquired | 3.2% (price as of 2026-08-21) |
| June 9, 2026 | GRNT | P | 10,600 | $4.75 | $50,350 | 1,360,813 | — | — | 8.0% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 24, 2022 | GRNT | Common Stock, par value $0.0001 per share | 17,175 | Direct |