DF DENT & CO INC

Position in WST — West Pharmaceutical Services Inc

CIK 934999 BALTIMORE, MD

Position in WST

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$30,226,432

-$57,703,359 QoQ

Shares Held

120,597

-62.3% QoQ

Ownership

0.171%

of shares outstanding

% of Portfolio

0.63%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2022

14 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

DF DENT & CO INC holds $229,602,112 across 6 Medical Instruments & Supplies names. WST ranks #3 (13.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ISRG	Intuitive Surgical Inc	275,313	$126,916,539
2	RGEN	Repligen Corp	365,115	$43,017,849
3	WST	West Pharmaceutical Services Inc This page	120,597	$30,226,432
4	LMAT	Lemaitre Vascular Inc	165,341	$18,050,276
5	WRBY	Warby Parker Inc.	528,128	$11,127,656
6	BDX	Becton Dickinson & Co	1,675	$263,360

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$30,226,432	120,597	-62.3%	Shares	Sole	2026-05-15
2025-12-31	$87,929,791	319,582	-16.7%	Shares	Sole	2026-02-17
2025-09-30	$100,657,332	383,705	-2.9%	Shares	Sole	2025-11-14
2025-06-30	$86,485,951	395,274	-10.0%	Shares	Sole	2025-08-14
2025-03-31	$98,350,036	439,298	+10.6%	Shares	Sole	2025-05-15
2024-12-31	$130,072,765	397,096	-0.0%	Shares	Sole	2025-02-12
2024-09-30	$119,209,144	397,152	+33.0%	Shares	Sole	2024-11-15
2024-06-30	$98,351,901	298,588	+14.9%	Shares	Sole	2024-08-14
2024-03-31	$102,858,483	259,934	+235.4%	Shares	Sole	2024-05-15
2023-12-31	$27,286,130	77,491	-2.3%	Shares	Sole	2024-02-14
2023-09-30	$29,746,648	79,280	-0.6%	Shares	Sole	2023-11-14
2023-06-30	$30,500,452	79,746	+3.8%	Shares	Sole	2023-08-14
2023-03-31	$26,624,140	76,844	-0.4%	Shares	Sole	2023-05-15
2022-12-31	$18,157,487	77,151	—	Shares	Sole	2023-02-15
No filing history on record for this holder in this stock.