Position in APT
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$152,625
+$0 QoQ
Shares Held
34,375
0.0% QoQ
Ownership
0.336%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2022
16 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in APT Over Time
Shares Held
Position Value (USD)
Position in Building Products & Equipment
Industrials · as of Mar 31, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $16,051,825 across 8 Building Products & Equipment names. APT ranks #7 (1.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | WMS |
Advanced Drainage Systems, Inc.
|
40,569 | $5,563,226 | |
| 2 | GFF |
Griffon Corp
|
47,076 | $3,421,483 | |
| 3 | ARLO |
Arlo Technologies, Inc.
|
192,504 | $2,739,331 | |
| 4 | INVE |
Identiv, Inc.
|
736,608 | $2,725,449 | |
| 5 | CARR |
CARRIER GLOBAL Corp
|
20,458 | $1,151,989 | |
| 6 | PPIH |
Perma-Pipe International Holdings, Inc.
|
9,526 | $283,970 | |
| 7 | APT |
Alpha Pro Tech Ltd
This page
|
34,375 | $152,625 | |
| 8 | TT |
Trane Technologies plc
|
33 | $13,752 |
All Filings in APT
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $152,625 | 34,375 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $152,625 | 34,375 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $164,656 | 34,375 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $161,218 | 34,375 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $173,910 | 34,782 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $184,054 | 34,793 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $221,274 | 38,820 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $213,510 | 38,820 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $701,469 | 112,415 | Shares | Sole | 2024-05-03 | |
| 2023-12-31 | $594,675 | 112,415 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $682,760 | 157,318 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $645,074 | 162,079 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $656,148 | 157,728 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $634,066 | 157,728 | Shares | Sole | 2023-02-03 | |
| 2022-09-30 | $638,798 | 157,728 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $751,719 | 168,547 | Shares | Sole | 2022-08-12 | |
| No filing history on record for this holder in this stock. | ||||||