ESSEX INVESTMENT MANAGEMENT CO LLC
Position in WMS — Advanced Drainage Systems, Inc.
CIK 201772
BOSTON, MA
Position in WMS
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$6,343,224
+$779,998 QoQ
Shares Held
40,413
-0.4% QoQ
Ownership
0.054%
of shares outstanding
% of Portfolio
0.85%
of 13F equity value
Holder Rank
#147
of 548 holders
Holding Since
Sep 2024
8 quarters on record
Voting authority
Sole 98%
Shared 0%
None 2%
Common Shares in WMS 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. WMS ranks #1 (38.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | WMS |
Advanced Drainage Systems, Inc.
This page
|
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
|
34,264 | $192,563 |
All Filings in WMS
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,343,224 | 40,413 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $5,563,226 | 40,569 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $6,203,793 | 42,835 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $5,949,952 | 42,898 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $1,105,412 | 9,624 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $1,519,578 | 13,986 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $1,466,270 | 12,684 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $1,536,239 | 9,775 | Shares | Sole | 2024-10-10 | |
| No filing history on record for this holder in this stock. | ||||||