Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 24 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

24 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Oct. 27, 2017 WAT S 2,623 $197.92 $519,144 4,077 Direct -39.15% Disposed 120.5% (price as of 2026-10-06)
Oct. 27, 2017 WAT S 4,690 $198.01 $928,667 4,077 Direct -53.50% Disposed 120.4% (price as of 2026-10-06)
Oct. 27, 2017 WAT S 10,000 $197.92 $1,979,200 4,077 Direct -71.04% Disposed 120.5% (price as of 2026-10-06)
Oct. 27, 2017 WAT S 9,600 $197.91 $1,899,936 4,077 Direct -70.19% Disposed 120.5% (price as of 2026-10-06)
Sept. 8, 2017 WAT S 18,400 $185.78 $3,418,352 4,077 Direct -81.86% Disposed 134.9% (price as of 2026-10-06)
June 9, 2017 WAT S 23,000 $186.90 $4,298,700 4,077 Direct -84.94% Disposed 133.5% (price as of 2026-10-06)
June 2, 2017 WAT S 10,000 $182.90 $1,829,000 4,077 Direct -71.04% Disposed 138.6% (price as of 2026-10-06)
May 18, 2017 WAT S 10,000 $176.46 $1,764,600 4,077 Direct -71.04% Disposed 147.3% (price as of 2026-10-06)
May 1, 2017 WAT S 15,000 $171.70 $2,575,500 4,077 Direct -78.63% Disposed 154.2% (price as of 2026-10-06)
Feb. 17, 2017 WAT S 1,078 $153.50 $165,473 4,077 Direct -20.91% Disposed 184.3% (price as of 2026-10-06)
Aug. 23, 2016 WAT S 10,000 $161.00 $1,610,000 6,114 Direct -62.06% Disposed 171.1% (price as of 2026-10-06)
Aug. 4, 2016 WAT S 192 $157.45 $30,230 0 Indirect -100.00% Disposed 177.2% (price as of 2026-10-06)
March 14, 2016 WAT S 700 $128.88 $90,216 6,114 Direct -10.27% Disposed 238.6% (price as of 2026-10-06)
March 11, 2016 WAT S 1,077 $129.22 $139,170 6,814 Direct -13.65% Disposed 237.7% (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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Oct. 27, 2017 WAT Stock Option (Right to Buy) Common Stock (2,623) $117.68 Feb. 10, 2026 2,623 Disposed
Oct. 27, 2017 WAT Stock Option (Right to Buy) Common Stock (4,690) $128.93 Dec. 9, 2025 4,690 Disposed
Oct. 27, 2017 WAT Stock Option (Right to Buy) Common Stock (10,000) $113.36 Dec. 11, 2024 10,000 Disposed
Oct. 27, 2017 WAT Stock Option (Right to Buy) Common Stock (9,600) $98.21 Dec. 6, 2023 9,600 Disposed
Sept. 8, 2017 WAT Stock Option (Right to Buy) Common Stock (18,400) $87.06 Dec. 11, 2022 18,400 Disposed
June 9, 2017 WAT Stock Option (Right to Buy) Common Stock (23,000) $79.15 Dec. 7, 2021 23,000 Disposed
June 2, 2017 WAT Stock Option (Right to Buy) Common Stock (10,000) $79.05 Dec. 9, 2020 10,000 Disposed
May 18, 2017 WAT Stock Option (Right to Buy) Common Stock (10,000) $79.05 Dec. 9, 2020 10,000 Disposed
May 1, 2017 WAT Stock Option (Right to Buy) Common Stock (15,000) $77.94 Dec. 11, 2017 15,000 Disposed
Dec. 9, 2016 WAT Stock Option (Right to Buy) Common Stock (18,787) $139.51 Dec. 9, 2026 18,787 Acquired
Aug. 23, 2016 WAT Stock Option (Right to Buy) Common Stock (10,000) $59.44 Dec. 9, 2019 10,000 Disposed
Feb. 10, 2016 WAT Stock Option (Right to Buy) Common Stock (13,119) $117.68 Feb. 10, 2026 13,119 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 9 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Feb. 11, 2016 WAT Common Stock 7,891 Indirect
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (15,000) 15,000 Direct
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (10,000) 10,000 Direct
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (20,000) 20,000 Direct
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (23,000) 23,000 Direct
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (23,000) 23,000 Direct
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (16,000) 16,000 Direct
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (25,000) 25,000 Direct
Feb. 11, 2016 WAT Stock Option (Right to Buy)→ Common Stock (23,454) 23,454 Direct