William L Sparks
Insider
First SEC filing: March 6, 2015 · Latest: March 6, 2015
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 23, 2016 | NPO | A | 908 | $44.34 | $40,261 | 1,908 Direct | +90.80% | Acquired | 648.9% (price as of 2026-10-06) |
| Feb. 23, 2016 | NPO | A | 1,000 | $44.34 | $44,340 | 1,000 Direct | · | Acquired | 648.9% (price as of 2026-10-06) |
| March 9, 2015 | NPO | A | 2,500 | $65.61 | $164,025 | 2,500 Direct | · | Acquired | 406.1% (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| Feb. 23, 2016 | NPO | Restricted Stock Units | Common Stock | · | · | 908 | Acquired |
| Feb. 23, 2016 | NPO | Restricted Stock Units | Common Stock | · | · | 1,000 | Acquired |
| March 9, 2015 | NPO | Restricted Stock Units | Common Stock | · | · | 2,500 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 6, 2015 | NPO | Restricted Stock Units | 721 | Direct |