PARSONS CORP DEL

Ticker: PSN CUSIP: 70202L102 Class: COM

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q4 2025

Shares 1,557,531 Value ($000) $96,255 Avg Close $78.26 Range $60.00 - $89.50

Q3 2025

Shares 1,764,619 Value ($000) $146,322 Avg Close $77.35 Range $71.53 - $83.49

Q2 2025

Shares 1,889,281 Value ($000) $135,594 Avg Close $66.05 Range $56.27 - $72.33

Q1 2025

Shares 1,095,474 Value ($000) $64,863 Avg Close $72.41 Range $54.56 - $97.91

Q4 2024

Shares 668,140 Value ($000) $61,636 Avg Close $101.96 Range $91.58 - $114.68

Q3 2024

Shares 876,518 Value ($000) $90,877 Avg Close $89.72 Range $76.08 - $104.36

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,557,531	$96,255	$78.26	$60.00 - $89.50
Q3 2025	1,764,619	$146,322	$77.35	$71.53 - $83.49
Q2 2025	1,889,281	$135,594	$66.05	$56.27 - $72.33
Q1 2025	1,095,474	$64,863	$72.41	$54.56 - $97.91
Q4 2024	668,140	$61,636	$101.96	$91.58 - $114.68
Q3 2024	876,518	$90,877	$89.72	$76.08 - $104.36