BERKSHIRE ASSET MANAGEMENT LLC/PA

Position in VRTX — Vertex Pharmaceuticals Inc / Ma

CIK 949012 WILKES BARRE, PA

Position in VRTX

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$1,407,494

-$124,409 QoQ

Shares Held

3,152

-6.7% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

24 quarters on record

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

Healthcare · as of Mar 31, 2026

BERKSHIRE ASSET MANAGEMENT LLC/PA holds $1,789,429 across 3 Biotechnology names. VRTX ranks #1 (78.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma This page	3,152	$1,407,494
2	IONS	Ionis Pharmaceuticals Inc	3,637	$273,102
3	ACOG	Alpha Cognition Inc.	19,824	$108,833

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,407,494	3,152	-6.7%	Shares	Sole	2026-05-11
2025-12-31	$1,531,903	3,379	+0.3%	Shares	Sole	2026-02-17
2025-09-30	$1,319,826	3,370	0.0%	Shares	Sole	2025-11-07
2025-06-30	$1,500,324	3,370	0.0%	Shares	Sole	2025-08-13
2025-03-31	$1,633,843	3,370	-7.5%	Shares	Sole	2025-05-14
2024-12-31	$1,467,438	3,644	-17.2%	Shares	Sole	2025-02-07
2024-09-30	$2,047,747	4,403	0.0%	Shares	Sole	2024-11-14
2024-06-30	$2,063,774	4,403	-8.1%	Shares	Sole	2024-08-13
2024-03-31	$2,001,849	4,789	-1.6%	Shares	Sole	2024-05-14
2023-12-31	$1,979,926	4,866	-0.5%	Shares	Sole	2024-02-09
2023-09-30	$1,700,100	4,889	-1.0%	Shares	Sole	2023-11-14
2023-06-30	$1,737,731	4,938	+2.6%	Shares	Sole	2023-08-14
2023-03-31	$1,516,431	4,813	-3.1%	Shares	Sole	2023-06-06
2022-09-30	$1,438,724	4,969	-19.0%	Shares	Sole	2022-11-14
2022-06-30	$1,727,654	6,131	-15.4%	Shares	Sole	2022-08-12
2022-03-31	$1,892,032	7,250	-27.4%	Shares	Sole	2022-05-16
2021-12-31	$2,192,047	9,982	-2.0%	Shares	Sole	2022-02-14
2021-09-30	$1,847,819	10,187	-0.6%	Shares	Sole	2021-11-15
2021-06-30	$2,067,110	10,252	-10.4%	Shares	Sole	2021-08-16
2021-03-31	$2,457,911	11,438	+56.5%	Shares	Sole	2021-05-17
2020-12-31	$1,727,409	7,309	+163.8%	Shares	Sole	2021-02-16
2020-09-30	$754,044	2,771	+14.9%	Shares	Sole	2020-11-16
2020-06-30	$699,937	2,411	-52.5%	Shares	Sole	2020-08-12
2020-03-31	$1,207,834	5,076	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.