Position in APT
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$192,563
+$39,938 QoQ
Shares Held
34,264
-0.3% QoQ
Ownership
0.336%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#14
of 41 holders
Holding Since
Jun 2022
17 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in APT Over Time
Shares Held
Position Value (USD)
Position in Building Products & Equipment
Industrials · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $16,375,992 across 7 Building Products & Equipment names. APT ranks #7 (1.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | WMS |
Advanced Drainage Systems, Inc.
|
40,413 | $6,343,224 | |
| 2 | GFF |
Griffon Corp
|
44,937 | $4,382,705 | |
| 3 | ARLO |
Arlo Technologies, Inc.
|
183,754 | $2,477,003 | |
| 4 | CARR |
CARRIER GLOBAL Corp
|
20,458 | $1,500,594 | |
| 5 | INVE |
Identiv, Inc.
|
484,438 | $1,220,783 | |
| 6 | PPIH |
Perma-Pipe International Holdings, Inc.
|
9,516 | $259,120 | |
| 7 | APT |
Alpha Pro Tech Ltd
This page
|
34,264 | $192,563 |
All Filings in APT
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $192,563 | 34,264 | Shares | Sole | 2026-08-06 | |
| 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. | ||||||