Chesley Taft & Associates LLC
Position in VRTX — Vertex Pharmaceuticals Inc / Ma
CIK 1164632
CHICAGO, IL
Position in VRTX
as of Jun 30, 2026
· filed Jul 8, 2026
Position Value
$537,460
+$149,417 QoQ
Shares Held
1,082
+24.5% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#1,047
of 1,735 holders
Holding Since
Mar 2020
13 quarters on record
Voting authority
Sole 95%
Shared 0%
None 5%
Common Shares in VRTX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Chesley Taft & Associates LLC holds $811,194 across 2 Biotechnology names. VRTX ranks #1 (66.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
This page
|
1,082 | $537,460 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
439 | $273,734 |
All Filings in VRTX
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13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $537,460 | 1,082 | Shares | Other | 2026-07-08 | |
| 2026-03-31 | $388,043 | 869 | Shares | Other | 2026-04-13 | |
| 2025-12-31 | $354,527 | 782 | Shares | Sole | 2026-01-14 | |
| 2025-09-30 | $220,493 | 563 | Shares | Sole | 2025-10-08 | |
| 2025-06-30 | $265,339 | 596 | Shares | Sole | 2025-07-09 | |
| 2025-03-31 | $235,622 | 486 | Shares | Sole | 2025-04-10 | |
| 2021-09-30 | $572,104 | 3,154 | Shares | Sole | 2021-10-05 | |
| 2021-06-30 | $769,016 | 3,814 | Shares | Sole | 2021-07-07 | |
| 2021-03-31 | $819,590 | 3,814 | Shares | Sole | 2021-04-06 | |
| 2020-12-31 | $1,982,656 | 8,389 | Shares | Sole | 2021-01-11 | |
| 2020-09-30 | $3,112,780 | 11,439 | Shares | Sole | 2020-10-08 | |
| 2020-06-30 | $2,832,554 | 9,757 | Shares | Sole | 2020-07-08 | |
| 2020-03-31 | $479,945 | 2,017 | Shares | Sole | 2020-04-15 | |
| No filing history on record for this holder in this stock. | ||||||