SYNOPSYS INC

Ticker: SNPS CUSIP: 871607107 Class: COM

HEADINVEST, LLC's Holding History (CIK: 0001372130)

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

Q4 2025

Shares 1,428 Value ($000) $671 Avg Close $444.23 Range $376.18 - $495.72

Q3 2025

Shares 849 Value ($000) $419 Avg Close $565.30 Range $380.84 - $651.73

Q2 2025

Shares 773 Value ($000) $396 Avg Close $465.91 Range $365.74 - $521.69

Q1 2025

Shares 800 Value ($000) $343 Avg Close $485.80 Range $423.08 - $556.31

Q4 2024

Shares 819 Value ($000) $398 Avg Close $522.72 Range $478.84 - $592.99

Q3 2024

Shares 784 Value ($000) $397 Avg Close $536.59 Range $457.52 - $624.80

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,428	$671	$444.23	$376.18 - $495.72
Q3 2025	849	$419	$565.30	$380.84 - $651.73
Q2 2025	773	$396	$465.91	$365.74 - $521.69
Q1 2025	800	$343	$485.80	$423.08 - $556.31
Q4 2024	819	$398	$522.72	$478.84 - $592.99
Q3 2024	784	$397	$536.59	$457.52 - $624.80