Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 20 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 724 · · 724 Direct · Acquired (price as of 2026-10-02)
March 15, 2026 KWR A 72 · · 683 Direct +11.78% Acquired (price as of 2026-10-02)
March 15, 2026 KWR M 60 · · 743 Direct +8.78% Acquired (price as of 2026-10-02)
March 15, 2026 KWR M 60 · · 803 Direct +8.08% Acquired (price as of 2026-10-02)
March 15, 2026 KWR M 93 · · 896 Direct +11.58% Acquired (price as of 2026-10-02)
March 15, 2026 KWR M 20 · · 916 Direct +2.23% Acquired (price as of 2026-10-02)
March 15, 2026 KWR M 4 · · 920 Direct +0.44% Acquired (price as of 2026-10-02)
March 15, 2026 KWR F 149 $118.45 $17,649 771 Direct -16.20% Disposed 35.7% (price as of 2026-10-02)
March 15, 2026 KWR M 60 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
March 15, 2026 KWR M 60 · · 60 Direct -50.00% Disposed (price as of 2026-10-02)
March 15, 2026 KWR M 93 · · 187 Direct -33.21% Disposed (price as of 2026-10-02)
March 15, 2026 KWR M 20 · · 41 Direct -32.79% Disposed (price as of 2026-10-02)
March 15, 2026 KWR M 4 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
March 15, 2026 KWR A 371 · · 371 Direct · Acquired (price as of 2026-10-02)
Dec. 15, 2025 KWR M 172 · · 690 Direct +33.20% Acquired (price as of 2026-10-02)
Dec. 15, 2025 KWR M 6 · · 696 Direct +0.87% Acquired (price as of 2026-10-02)
Dec. 15, 2025 KWR F 85 $138.96 $11,812 611 Direct -12.21% Disposed 15.7% (price as of 2026-10-02)
Dec. 15, 2025 KWR M 172 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Dec. 15, 2025 KWR M 6 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Oct. 15, 2025 KWR A 61 · · 61 Direct · 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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
March 15, 2026 KWR Restricted Stock Units Common Stock (724) · · 724 Acquired
March 15, 2026 KWR Restricted Stock Units Common Stock (60) · · 60 Disposed
March 15, 2026 KWR Restricted Stock Units Common Stock (60) · · 60 Disposed
March 15, 2026 KWR Restricted Stock Units Common Stock (93) · · 93 Disposed
March 15, 2026 KWR Restricted Stock Units Common Stock (20) · · 20 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 (371) · · 371 Acquired
Dec. 15, 2025 KWR Restricted Stock Units Common Stock (172) · · 172 Disposed
Dec. 15, 2025 KWR Dividend Equivalent Rights Common Stock (6) · Dec. 15, 2025 6 Disposed
Oct. 15, 2025 KWR Restricted Stock Units Common Stock (61) · · 61 Acquired

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

Initial ownership (Form 3) 5 holdings

07

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

DateTickerSecuritySharesOwnership
Oct. 2, 2025 KWR Common Stock 518 Direct
Oct. 2, 2025 KWR Restricted Stock Units→ Common Stock (172) 172 Direct
Oct. 2, 2025 KWR Restricted Stock Units→ Common Stock (60) 60 Direct
Oct. 2, 2025 KWR Restricted Stock Units→ Common Stock (120) 120 Direct
Oct. 2, 2025 KWR Restricted Stock Units→ Common Stock (280) 280 Direct