ARDSLEY ADVISORY PARTNERS LP
Position in VRTX — Vertex Pharmaceuticals Inc / Ma
CIK 900529
Norwalk, CT
Position in VRTX
as of Jun 30, 2026
· filed Jul 13, 2026
Position Value
$7,450,950
-$7,591,350 QoQ
Shares Held
15,000
-78.6% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
0.83%
of 13F equity value
Holder Rank
#13
of 117 holders
Holding Since
Mar 2020
5 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in VRTX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026ARDSLEY ADVISORY PARTNERS LP holds $24,823,800 across 5 Biotechnology names. VRTX ranks #1 (30.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
This page
|
15,000 | $7,450,950 | |
| 2 | JAZZ |
Jazz Pharmaceuticals plc
|
30,000 | $7,229,100 | |
| 3 | ADMA |
Adma Biologics, Inc.
|
600,000 | $5,022,000 | |
| 4 | FTRE |
Fortrea Holdings Inc.
|
175,000 | $3,045,000 | |
| 5 | ALDX |
Aldeyra Therapeutics, Inc.
|
975,000 | $2,076,750 |
All Filings in VRTX
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5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $7,450,950 | 15,000 | Shares | Sole | 2026-07-13 | |
| 2021-03-31 | $15,042,300 | 70,000 | Shares | Sole | 2021-05-17 | |
| 2020-09-30 | $816,360 | 3,000 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $870,930 | 3,000 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $1,189,750 | 5,000 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||