William G Pryor
CIK 1140178 · View on SEC EDGAR ↗
Insider
First SEC filing: May 10, 2010 · Latest: May 10, 2010
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 12 non-open-market transactions below
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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 6, 2010 | MTRN | A | 2,244 | $26.74 | $60,005 | 8,958 Direct | +33.42% | Acquired | 779.2% (price as of 2026-08-20) |
| May 7, 2009 | MTRN | A | 2,464 | $18.27 | $45,017 | 6,714 Direct | +57.98% | Acquired | 1186.9% (price as of 2026-08-20) |
| May 8, 2008 | MTRN | A | 1,398 | $32.19 | $45,002 | 4,250 Direct | +49.02% | Acquired | 630.4% (price as of 2026-08-20) |
| May 2, 2007 | MTRN | A | 979 | $46.01 | $45,044 | 2,852 Direct | +52.27% | Acquired | 411.0% (price as of 2026-08-20) |
| May 2, 2006 | MTRN | A | 1,873 | $24.03 | $45,008 | 1,873 Direct | — | Acquired | 878.4% (price as of 2026-08-20) |
| May 4, 2005 | MTRN | A | 500 | $14.80 | $7,400 | 1,000 Indirect | +100.00% | Acquired | 1488.6% (price as of 2026-08-20) |
| May 4, 2005 | MTRN | A | 500 | $14.85 | $7,425 | 1,000 Indirect | +100.00% | Acquired | 1483.2% (price as of 2026-08-20) |
| May 3, 2005 | MTRN | A | 2,000 | $14.59 | $29,180 | 2,000 Direct | — | Acquired | 1511.4% (price as of 2026-08-20) |
| May 10, 2004 | MTRN | A | 500 | $15.85 | $7,925 | 500 Indirect | — | Acquired | 1383.3% (price as of 2026-08-20) |
| May 5, 2004 | MTRN | A | 500 | $16.10 | $8,050 | 1,000 Indirect | +100.00% | Acquired | 1360.3% (price as of 2026-08-20) |
| May 5, 2004 | MTRN | A | 2,000 | $16.12 | $32,240 | 2,000 Direct | — | Acquired | 1358.5% (price as of 2026-08-20) |
| Dec. 4, 2003 | GTBP | A | 17,602 | $0.57 | $10,033 | 87,602 Direct | -16.73% | Disposed | -99.9% (price as of 2026-08-20) |
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.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| May 3, 2005 | MTRN | Brush Engineered Materials Inc. | common stock | $14.59 | May 3, 2015 | 2,000 | Acquired |
| May 5, 2004 | MTRN | Brush Engineered Materials Inc. | common stock | $16.12 | May 5, 2014 | 2,000 | Acquired |
| Dec. 4, 2003 | GTBP | Stock Option (right to buy) | common stock (17,602) | $0.57 | Dec. 3, 2013 | 17,602 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).