Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 10 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 23, 2022 WAT F 34 $306.54 $10,422 2,847 Direct -1.18% Disposed 38.7% (price as of 2026-10-02)
Feb. 17, 2022 WAT A 3,974 · · 3,974 Direct · Acquired (price as of 2026-10-02)
Feb. 17, 2022 WAT F 22 $314.98 $6,930 2,881 Direct -0.76% Disposed 35.0% (price as of 2026-10-02)
July 9, 2021 WAT F 63 · · 2,903 Direct -2.12% Disposed (price as of 2026-10-02)
Feb. 26, 2021 WAT F 21 · · 2,966 Direct -0.70% Disposed (price as of 2026-10-02)
Feb. 23, 2021 WAT F 56 · · 2,987 Direct -1.84% Disposed (price as of 2026-10-02)
Feb. 18, 2021 WAT A 4,588 · · 4,588 Direct · Acquired (price as of 2026-10-02)
Feb. 10, 2021 WAT F 26 · · 3,043 Direct -0.85% Disposed (price as of 2026-10-02)
July 9, 2020 WAT A 2,865 · · 2,865 Direct · Acquired (price as of 2026-10-02)
July 9, 2020 WAT A 1,060 · · 3,069 Direct +52.76% Acquired (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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 17, 2022 WAT Stock Option (Right to Buy) Common Stock (3,974) $314.98 Feb. 17, 2032 3,974 Acquired
Feb. 18, 2021 WAT Stock Option (Right to Buy) Common Stock (4,588) $280.80 Feb. 18, 2031 4,588 Acquired
July 9, 2020 WAT Stock Option (Right to Buy) Common Stock (2,865) $188.63 July 9, 2030 2,865 Acquired

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

Initial ownership (Form 3) 3 holdings

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

DateTickerSecuritySharesOwnership
July 13, 2020 WAT Common Stock 2,009 Direct
July 13, 2020 WAT Common Stock 590 Indirect
July 13, 2020 WAT Stock Option (Right to Buy)→ Common Stock (3,712) 3,712 Direct