Thomas C Knudson
Insider
First SEC filing: May 16, 2013 · Latest: May 16, 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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 21, 2014 | AMPY | A | 25,000 | · | · | 42,000 Direct | +147.06% | Acquired | (price as of 2026-10-02) |
| Nov. 20, 2013 | MDU | A | 3,603 | $30.53 | $110,000 | 28,070 Direct | +14.73% | Acquired | 60.3% (price as of 2026-10-02) |
| May 16, 2013 | AMPY | A | 16,000 | · | · | 17,000 Direct | +1600.00% | Acquired | (price as of 2026-10-02) |
| Nov. 19, 2012 | MDU | A | 5,467 | $20.12 | $109,996 | 24,467 Direct | +28.77% | Acquired | 143.3% (price as of 2026-10-02) |
| Nov. 21, 2011 | MDU | A | 5,450 | $20.18 | $109,981 | 19,000 Direct | +40.22% | Acquired | 142.5% (price as of 2026-10-02) |
| May 17, 2010 | MDU | A | 4,050 | $19.52 | $79,056 | 13,550 Direct | +42.63% | Acquired | 150.7% (price as of 2026-10-02) |
| May 18, 2009 | MDU | A | 4,050 | $17.15 | $69,458 | 9,500 Direct | +74.31% | Acquired | 185.4% (price as of 2026-10-02) |
| May 8, 2009 | MDU | P | 3,600 | $17.88 | $64,368 | 5,450 Direct | +194.59% | Acquired | 173.7% (price as of 2026-10-02) |
| May 8, 2009 | MDU | P | 1,400 | $17.88 | $25,032 | 1,850 Direct | +311.11% | Acquired | 173.7% (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) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.