ARDSLEY ADVISORY PARTNERS LP
Position in AEIS — Advanced Energy Industries Inc
CIK 900529
Norwalk, CT
Position in AEIS
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,613,550
-$13,670,460 QoQ
Shares Held
5,000
-93.2% QoQ
Ownership
0.012%
of shares outstanding
% of Portfolio
0.25%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AEIS Over Time
Shares Held
Position Value (USD)
Position in Electrical Equipment & Parts
Industrials · as of Jun 30, 2026ARDSLEY ADVISORY PARTNERS LP holds $16,938,900 across 3 Electrical Equipment & Parts names.
All Filings in AEIS
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,613,550 | 5,000 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $15,284,010 | 73,000 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $7,571,230 | 44,500 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $4,637,500 | 35,000 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $2,954,610 | 31,000 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $2,890,750 | 25,000 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $3,157,200 | 30,000 | Shares | Sole | 2024-11-14 | |
| No filing history on record for this holder in this stock. | ||||||