On this page
Jack Derby
Insider
First SEC filing: Jan. 4, 2012 · Latest: Jan. 4, 2012
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 1, 2013 | REFR | A | 18,300 | · | · | 50,200 Direct | +57.37% | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2012 | REFR | A | 19,300 | · | · | 31,900 Direct | +153.17% | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|
| Jan. 10, 2011 | REFR | Common Stock | 12,600 | Direct |