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Brian K Mazar
Insider
First SEC filing: Feb. 10, 2006 · Latest: Feb. 10, 2006
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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 14, 2005 | WAT | G | 15,000 | · | · | 244,484 Direct | -5.78% | Disposed | (price as of 2026-10-06) |
| Feb. 14, 2005 | WAT | M | 66,000 | $8.55 | $564,300 | 0 Direct | -100.00% | Disposed | 5004.4% (price as of 2026-10-06) |
| Feb. 14, 2005 | WAT | S | 66,000 | $49.72 | $3,281,520 | 259,484 Direct | -20.28% | Disposed | 777.8% (price as of 2026-10-06) |
| Feb. 14, 2005 | WAT | M | 66,000 | $8.55 | $564,300 | 325,484 Direct | +25.44% | Acquired | 5004.4% (price as of 2026-10-06) |
| Feb. 14, 2005 | WAT | M | 66,000 | $8.55 | $564,300 | 0 Direct | -100.00% | Disposed | 5004.4% (price as of 2026-10-06) |
| Dec. 8, 2004 | WAT | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Dec. 8, 2004 | WAT | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 15, 2004 | WAT | G | 12,000 | · | · | 259,484 Direct | -4.42% | Disposed | (price as of 2026-10-06) |
| Nov. 15, 2004 | WAT | G | 12,000 | · | · | 48,000 Indirect | +33.33% | Acquired | (price as of 2026-10-06) |
| Nov. 15, 2004 | WAT | G | 12,000 | · | · | 259,484 Direct | -4.42% | Disposed | (price as of 2026-10-06) |
| April 30, 2004 | WAT | M | 120,664 | $4.07 | $491,102 | 0 Direct | -100.00% | Disposed | 10623.1% (price as of 2026-10-06) |
| April 30, 2004 | WAT | S | 120,664 | $42.30 | $5,104,087 | 271,484 Direct | -30.77% | Disposed | 931.7% (price as of 2026-10-06) |
| April 30, 2004 | WAT | M | 120,664 | $4.07 | $491,102 | 392,148 Direct | +44.45% | Acquired | 10623.1% (price as of 2026-10-06) |
| Jan. 16, 2004 | WAT | A | 1,800 | · | · | 144,948 Indirect | +1.26% | Acquired | (price as of 2026-10-06) |
| Jan. 16, 2004 | WAT | G | 1,800 | · | · | 271,484 Direct | -0.66% | Disposed | (price as of 2026-10-06) |
| Jan. 14, 2004 | WAT | G | 1,200 | · | · | 273,284 Direct | -0.44% | Disposed | (price as of 2026-10-06) |
| Dec. 11, 2003 | WAT | A | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Oct. 29, 2003 | WAT | M | 125,000 | $4.07 | $508,750 | 120,664 Direct | -50.88% | Disposed | 10623.1% (price as of 2026-10-06) |
| Oct. 29, 2003 | WAT | S | 125,000 | $31.13 | $3,891,250 | 274,484 Direct | -31.29% | Disposed | 1302.0% (price as of 2026-10-06) |
| Oct. 29, 2003 | WAT | M | 125,000 | $4.07 | $508,750 | 399,484 Direct | +45.54% | Acquired | 10623.1% (price as of 2026-10-06) |
| Oct. 29, 2003 | WAT | M | 125,000 | $4.07 | $508,750 | 245,664 Direct | -33.72% | Disposed | 10623.1% (price as of 2026-10-06) |
| Oct. 29, 2003 | WAT | S | 125,000 | $31.13 | $3,891,250 | 274,484 Direct | -31.29% | Disposed | 1302.0% (price as of 2026-10-06) |
| Oct. 29, 2003 | WAT | M | 125,000 | $4.07 | $508,750 | 399,484 Direct | +45.54% | Acquired | 10623.1% (price as of 2026-10-06) |
| July 24, 2003 | WAT | M | 100,000 | $4.07 | $407,000 | 245,664 Direct | -28.93% | Disposed | 10623.1% (price as of 2026-10-06) |
| July 24, 2003 | WAT | S | 100,000 | $29.87 | $2,987,000 | 274,484 Direct | -26.70% | Disposed | 1361.1% (price as of 2026-10-06) |
| July 24, 2003 | WAT | M | 100,000 | $4.07 | $407,000 | 374,484 Direct | +36.43% | Acquired | 10623.1% (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. 14, 2005 | WAT | Stock Option (Right to Buy) | Common Stock | $8.55 | May 24, 2006 | 66,000 | Disposed |
| Feb. 14, 2005 | WAT | Stock Option (Right to Buy) | Common Stock | $8.55 | May 24, 2006 | 66,000 | Disposed |
| Dec. 8, 2004 | WAT | Stock Option (Right to Buy) | Common Stock | $47.12 | Dec. 8, 2014 | 15,000 | Acquired |
| Dec. 8, 2004 | WAT | Stock Option (Right to Buy) | Common Stock | $47.12 | Dec. 8, 2014 | 15,000 | Acquired |
| April 30, 2004 | WAT | Stock Option (Right to Buy) | Common Stock | $4.07 | Aug. 18, 2004 | 120,664 | Disposed |
| Dec. 11, 2003 | WAT | Stock Option (Right to Buy) | Common Stock | $32.12 | Dec. 11, 2013 | 40,000 | Acquired |
| Oct. 29, 2003 | WAT | Stock Option (Right to Buy) | Common Stock | $4.07 | Aug. 18, 2004 | 125,000 | Disposed |
| Oct. 29, 2003 | WAT | Stock Option (Right to Buy) | Common Stock | $4.07 | Aug. 18, 2004 | 125,000 | Disposed |
| July 24, 2003 | WAT | Stock Option (Right to Buy) | Common Stock | $4.07 | Aug. 18, 2004 | 100,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).