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John Sherwin JR
Insider
First SEC filing: Feb. 6, 2013 · Latest: Feb. 6, 2013
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 6, 2013 | MTRN | A | 19 | $27.96 | $531 | 7,196 Indirect | +0.26% | Acquired | 999.0% (price as of 2026-10-05) |
| Nov. 21, 2012 | MTRN | D | 5,991 | $19.60 | $117,424 | 2,654 Direct | -69.30% | Disposed | 1467.8% (price as of 2026-10-05) |
| May 3, 2012 | MTRN | A | 2,654 | $24.50 | $65,023 | 7,751 Direct | +52.07% | Acquired | 1154.2% (price as of 2026-10-05) |
| Aug. 3, 2011 | MTRN | S | 2,244 | $33.94 | $76,161 | 5,077 Direct | -30.65% | Disposed | 805.4% (price as of 2026-10-05) |
| May 5, 2011 | MTRN | A | 1,712 | $37.98 | $65,022 | 7,399 Direct | +30.10% | Acquired | 709.1% (price as of 2026-10-05) |
| Nov. 8, 2010 | MTRN | S | 4,000 | $36.25 | $145,000 | 0 Direct | -100.00% | Disposed | 747.7% (price as of 2026-10-05) |
| Nov. 8, 2010 | MTRN | A | 2,000 | · | · | 2,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Nov. 8, 2010 | MTRN | A | 2,000 | · | · | 2,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Nov. 8, 2010 | MTRN | D | 4,000 | $36.25 | $145,000 | 0 Direct | -100.00% | Disposed | 747.7% (price as of 2026-10-05) |
| Nov. 8, 2010 | MTRN | A | 2,000 | $16.10 | $32,200 | 4,000 Direct | +100.00% | Acquired | 1808.6% (price as of 2026-10-05) |
| Nov. 8, 2010 | MTRN | A | 2,000 | $20.64 | $41,280 | 2,000 Direct | · | Acquired | 1388.8% (price as of 2026-10-05) |
| May 6, 2010 | MTRN | A | 2,244 | $26.74 | $60,005 | 5,687 Direct | +65.18% | Acquired | 1049.2% (price as of 2026-10-05) |
| May 13, 2009 | MTRN | D | 600 | $15.60 | $9,360 | 3,443 Direct | -14.84% | Disposed | 1869.8% (price as of 2026-10-05) |
| May 13, 2009 | MTRN | D | 798 | $15.60 | $12,449 | 4,043 Direct | -16.48% | Disposed | 1869.8% (price as of 2026-10-05) |
| May 7, 2009 | MTRN | A | 2,464 | $18.27 | $45,017 | 4,841 Direct | +103.66% | Acquired | 1581.9% (price as of 2026-10-05) |
| May 8, 2008 | MTRN | A | 1,398 | $32.19 | $45,002 | 2,377 Direct | +142.80% | Acquired | 854.6% (price as of 2026-10-05) |
| Aug. 29, 2007 | MTRN | S | 890 | $45.20 | $40,228 | 4,795 Indirect | -15.66% | Disposed | 579.8% (price as of 2026-10-05) |
| Aug. 29, 2007 | MTRN | S | 600 | $45.16 | $27,096 | 5,685 Indirect | -9.55% | Disposed | 580.4% (price as of 2026-10-05) |
| Aug. 29, 2007 | MTRN | S | 1,510 | $45.15 | $68,176 | 6,285 Indirect | -19.37% | Disposed | 580.6% (price as of 2026-10-05) |
| May 2, 2007 | MTRN | A | 979 | $46.01 | $45,044 | 2,852 Direct | +52.27% | Acquired | 567.9% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | M | 2,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | M | 2,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | M | 2,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | S | 100 | $44.45 | $4,445 | 0 Direct | -100.00% | Disposed | 591.3% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | S | 100 | $44.44 | $4,444 | 100 Direct | -50.00% | Disposed | 591.5% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | S | 900 | $44.38 | $39,942 | 200 Direct | -81.82% | Disposed | 592.4% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | S | 200 | $44.27 | $8,854 | 1,100 Direct | -15.38% | Disposed | 594.1% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | S | 4,700 | $44.23 | $207,881 | 1,300 Direct | -78.33% | Disposed | 594.7% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | M | 2,000 | $14.80 | $29,600 | 6,000 Direct | +50.00% | Acquired | 1976.3% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | M | 2,000 | $12.36 | $24,720 | 4,000 Direct | +100.00% | Acquired | 2386.1% (price as of 2026-10-05) |
| Feb. 16, 2007 | MTRN | M | 2,000 | $5.61 | $11,220 | 2,000 Direct | · | Acquired | 5377.5% (price as of 2026-10-05) |
| May 2, 2006 | MTRN | A | 1,873 | $24.03 | $45,008 | 1,873 Direct | · | Acquired | 1178.8% (price as of 2026-10-05) |
| Aug. 10, 2005 | MTRN | S | 3,081 | $16.91 | $52,100 | 0 Indirect | -100.00% | Disposed | 1717.2% (price as of 2026-10-05) |
| May 4, 2005 | MTRN | A | 500 | $14.80 | $7,400 | 7,101 Indirect | +7.57% | Acquired | 1976.3% (price as of 2026-10-05) |
| May 4, 2005 | MTRN | A | 500 | $14.85 | $7,425 | 7,101 Indirect | +7.57% | Acquired | 1969.3% (price as of 2026-10-05) |
| May 3, 2005 | MTRN | A | 2,000 | $14.59 | $29,180 | 2,000 Direct | · | Acquired | 2006.1% (price as of 2026-10-05) |
| May 10, 2004 | MTRN | A | 500 | $15.85 | $7,925 | 6,601 Indirect | +8.20% | Acquired | 1838.7% (price as of 2026-10-05) |
| May 5, 2004 | MTRN | A | 500 | $16.10 | $8,050 | 7,101 Indirect | +7.57% | Acquired | 1808.6% (price as of 2026-10-05) |
| May 5, 2004 | MTRN | A | 2,000 | $16.12 | $32,240 | 2,000 Direct | · | Acquired | 1806.2% (price as of 2026-10-05) |
| May 7, 2003 | MTRN | A | 500 | $5.61 | $2,805 | 7,101 Indirect | +7.57% | Acquired | 5377.5% (price as of 2026-10-05) |
| May 8, 2002 | MTRN | A | 500 | $12.36 | $6,180 | 7,101 Indirect | +7.57% | Acquired | 2386.1% (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Nov. 8, 2010 | MTRN | Stock Option (Right to Buy) | common stock | $16.10 | May 5, 2014 | 2,000 | Acquired |
| Nov. 8, 2010 | MTRN | Stock Option (Right to Buy) | common stock | $20.60 | May 2, 2011 | 2,000 | Acquired |
| Feb. 16, 2007 | MTRN | Employee Stock Option (Right to buy) | common stock | $14.80 | May 4, 2015 | 2,000 | Disposed |
| Feb. 16, 2007 | MTRN | Employee Stock option (right to buy) | common stock | $12.36 | May 8, 2012 | 2,000 | Disposed |
| Feb. 16, 2007 | MTRN | Employee Stock Option (Right to buy) | common stock | $5.61 | May 7, 2013 | 2,000 | Disposed |
| 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 |
Exercise/conversion price is blank when not applicable (e.g. RSUs).