Mark A Sperry
Insider
First SEC filing: Feb. 17, 2009 · Latest: Feb. 17, 2009
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 5, 2010 | PLUG | S 10b5-1 | 20,375 | $0.53 | $10,799 | 67,427 Direct | -23.21% | Disposed | -64.2% (price as of 2026-10-02) |
| Feb. 8, 2010 | PLUG | F | 14,073 | $0.54 | $7,599 | 87,802 Direct | -13.81% | Disposed | -64.8% (price as of 2026-10-02) |
| Feb. 8, 2010 | PLUG | F | 14,073 | $0.54 | $7,599 | 87,802 Direct | -13.81% | Disposed | -64.8% (price as of 2026-10-02) |
| Feb. 8, 2010 | PLUG | A | 34,448 | · | · | 101,875 Direct | +51.09% | Acquired | (price as of 2026-10-02) |
| May 20, 2009 | PLUG | A | 2,500 | · | · | 189,527 Direct | +1.34% | Acquired | (price as of 2026-10-02) |
| May 12, 2009 | PLUG | F | 2,947 | $0.91 | $2,682 | 67,427 Direct | -4.19% | Disposed | -79.1% (price as of 2026-10-02) |
| May 12, 2009 | PLUG | A | 8,505 | · | · | 70,374 Direct | +13.75% | Acquired | (price as of 2026-10-02) |
| April 3, 2009 | PLUG | S | 48,000 | $0.92 | $44,160 | 61,869 Direct | -43.69% | Disposed | -79.3% (price as of 2026-10-02) |
| March 9, 2009 | PLUG | F | 26,525 | $0.91 | $24,138 | 109,869 Direct | -19.45% | Disposed | -79.1% (price as of 2026-10-02) |
| March 9, 2009 | PLUG | A | 76,549 | · | · | 136,394 Direct | +127.91% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2008 | PLUG | F | 2,427 | $0.90 | $2,184 | 61,630 Direct | -3.79% | Disposed | -78.9% (price as of 2026-10-02) |
| Feb. 4, 2008 | PLUG | S | 3,150 | $2.92 | $9,198 | 64,057 Direct | -4.69% | Disposed | -93.5% (price as of 2026-10-02) |
| Jan. 24, 2008 | PLUG | A | 27,000 | · | · | 187,027 Direct | +16.87% | Acquired | (price as of 2026-10-02) |
| Feb. 1, 2007 | PLUG | S | 3,200 | $3.65 | $11,680 | 67,207 Direct | -4.55% | Disposed | -94.8% (price as of 2026-10-02) |
| Feb. 1, 2006 | PLUG | A | 40,000 | $5.58 | $223,200 | 120,027 Direct | +49.98% | Acquired | -96.6% (price as of 2026-10-02) |
| Feb. 1, 2006 | PLUG | A | 21,000 | $5.58 | $117,180 | 70,407 Direct | +42.50% | Acquired | -96.6% (price as of 2026-10-02) |
| Feb. 1, 2006 | PLUG | A | 1,815 | $5.58 | $10,128 | 49,407 Direct | +3.81% | Acquired | -96.6% (price as of 2026-10-02) |
| Sept. 21, 2005 | PLUG | F | 39,260 | $6.58 | $258,331 | 47,592 Direct | -45.20% | Disposed | -97.1% (price as of 2026-10-02) |
| Feb. 10, 2005 | PLUG | D | 725 | $5.55 | $4,024 | 86,852 Direct | -0.83% | Disposed | -96.6% (price as of 2026-10-02) |
| Jan. 28, 2005 | PLUG | A | 25,000 | $5.39 | $134,750 | 80,027 Direct | +45.43% | Acquired | -96.5% (price as of 2026-10-02) |
| Aug. 10, 2004 | PLUG | D | 725 | $4.79 | $3,473 | 85,812 Direct | -0.84% | Disposed | -96.0% (price as of 2026-10-02) |
| Feb. 10, 2004 | PLUG | A | 20,000 | $9.20 | $184,000 | 55,027 Direct | -26.66% | Disposed | -97.9% (price as of 2026-10-02) |
| Feb. 10, 2004 | PLUG | A | 5,370 | · | · | 86,537 Direct | +6.62% | Acquired | (price as of 2026-10-02) |
| Nov. 14, 2001 | PLUG | A | 27,000 | $8.53 | $230,310 | 35,027 Direct | -43.53% | Disposed | -97.8% (price as of 2026-10-02) |
| Nov. 14, 2001 | PLUG | A | 8,027 | $8.53 | $68,470 | 8,027 Direct | -50.00% | Disposed | -97.8% (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.
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 20, 2009 | PLUG | Option to Purchase Common Stock | Common Stock | $0.95 | May 20, 2019 | 2,500 | Acquired |
| Jan. 24, 2008 | PLUG | NQ Stock Options | Common Stock | $2.60 | Jan. 24, 2018 | 27,000 | Acquired |
| Feb. 1, 2006 | PLUG | Stock Options | Common Stock | $5.58 | Feb. 1, 2016 | 40,000 | Acquired |
| Jan. 28, 2005 | PLUG | Employee Stock Option | Common Stock | $5.39 | Jan. 28, 2015 | 25,000 | Acquired |
| Feb. 10, 2004 | PLUG | Employee Stock Option | Common Stock | $9.20 | Feb. 10, 2014 | 20,000 | Disposed |
| Nov. 14, 2001 | PLUG | Employee Stock Option | Common Stock | $8.53 | Nov. 14, 2011 | 27,000 | Disposed |
| Nov. 14, 2001 | PLUG | Employee Stock Option | Common Stock | $8.53 | Nov. 14, 2011 | 8,027 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2007 | $242,673 | $8,000 | · | · | · | · | $11,377 | $401,454 |
| 2006 | $237,462 | $60,750 | · | · | · | · | $11,339 | $443,012 |
| 2005 | $226,987,226,987,218,592 | $330,003,300,038,875 | · | · | · | · | $99,461,113,110,930 | · |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.