Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 12 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
March 15, 2026 KWR A 39 · · 196 Direct +24.84% Acquired (price as of 2026-10-05)
March 15, 2026 KWR M 45 · · 241 Direct +22.96% Acquired (price as of 2026-10-05)
March 15, 2026 KWR M 82 · · 323 Direct +34.02% Acquired (price as of 2026-10-05)
March 15, 2026 KWR M 171 · · 494 Direct +52.94% Acquired (price as of 2026-10-05)
March 15, 2026 KWR M 4 · · 498 Direct +0.81% Acquired (price as of 2026-10-05)
March 15, 2026 KWR F 130 $118.45 $15,398 368 Direct -26.10% Disposed 35.3% (price as of 2026-10-05)
March 15, 2026 KWR M 45 · · 45 Direct -50.00% Disposed (price as of 2026-10-05)
March 15, 2026 KWR M 82 · · 82 Direct -50.00% Disposed (price as of 2026-10-05)
March 15, 2026 KWR M 171 · · 342 Direct -33.33% Disposed (price as of 2026-10-05)
March 15, 2026 KWR M 4 · · 0 Direct -100.00% Disposed (price as of 2026-10-05)
March 15, 2026 KWR A 557 · · 557 Direct · Acquired (price as of 2026-10-05)
March 15, 2026 KWR A 1,266 · · 1,266 Direct · Acquired (price as of 2026-10-05)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
March 15, 2026 KWR Restricted Stock Units Common Stock (45) · · 45 Disposed
March 15, 2026 KWR Restricted Stock Units Common Stock (82) · · 82 Disposed
March 15, 2026 KWR Restricted Stock Units Common Stock (171) · · 171 Disposed
March 15, 2026 KWR Dividend Equivalent Rights Common Stock (4) · March 15, 2026 4 Disposed
March 15, 2026 KWR Restricted Stock Units Common Stock (557) · · 557 Acquired
March 15, 2026 KWR Restricted Stock Units Common Stock (1,266) · · 1,266 Acquired

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

Initial ownership (Form 3) 4 holdings

07

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

DateTickerSecuritySharesOwnership
July 31, 2025 KWR Common Stock 157 Direct
July 31, 2025 KWR Restricted Stock Units→ Common Stock (90) 90 Direct
July 31, 2025 KWR Restricted Stock Units→ Common Stock (164) 164 Direct
July 31, 2025 KWR Restricted Stock Units→ Common Stock (513) 513 Direct