INGEVITY CORP

Ticker: NGVT CUSIP: 45688C107 Class: Common Stock

Harvey Partners, LLC's Holding History (CIK: 0001406484)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 629,430 Value ($000) $37,250 Avg Close $54.27 Range $45.85 - $61.77

Q3 2025

Shares 601,000 Value ($000) $33,169 Avg Close $52.01 Range $39.74 - $60.77

Q2 2025

Shares 572,047 Value ($000) $24,650 Avg Close $38.57 Range $28.49 - $45.00

Q1 2025

Shares 358,500 Value ($000) $14,193 Avg Close $44.25 Range $36.25 - $50.09

Q4 2024

Shares 324,000 Value ($000) $13,203 Avg Close $41.64 Range $30.90 - $51.67

Q3 2024

Shares 202,000 Value ($000) $7,878 Avg Close $39.83 Range $32.21 - $48.52

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	629,430	$37,250	$54.27	$45.85 - $61.77
Q3 2025	601,000	$33,169	$52.01	$39.74 - $60.77
Q2 2025	572,047	$24,650	$38.57	$28.49 - $45.00
Q1 2025	358,500	$14,193	$44.25	$36.25 - $50.09
Q4 2024	324,000	$13,203	$41.64	$30.90 - $51.67
Q3 2024	202,000	$7,878	$39.83	$32.21 - $48.52