Position in PRLB
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$35,930,912
+$9,486,177 QoQ
Shares Held
440,816
-5.0% QoQ
Ownership
1.84%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#12
of 277 holders
Holding Since
Jun 2020
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PRLB Over Time
Shares Held
Position Value (USD)
Position in Metal Fabrication
Industrials · as of Jun 30, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $399,369,843 across 7 Metal Fabrication names. PRLB ranks #3 (9.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MLI |
Mueller Industries Inc
|
2,856,474 | $175,573,174 | |
| 2 | ATI |
Ati Inc
|
839,786 | $165,521,820 | |
| 3 | PRLB |
Proto Labs Inc
This page
|
440,816 | $35,930,912 | |
| 4 | WOR |
Worthington Enterprises, Inc.
|
260,050 | $13,980,288 | |
| 5 | RYZ |
Ryerson Holding Corp
|
156,985 | $3,863,400 | |
| 6 | IIIN |
Insteel Industries Inc
|
89,603 | $2,706,010 | |
| 7 | TG |
Tredegar Corp
|
225,407 | $1,794,239 |
All Filings in PRLB
Export CSV
15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $35,930,912 | 440,816 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $26,444,735 | 463,780 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $23,302,664 | 460,618 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $23,044,718 | 460,618 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $17,903,085 | 447,130 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $15,770,452 | 450,070 | Shares | Defined | 2025-05-14 | |
| 2024-12-31 | $8,322,808 | 212,914 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $1,395,603 | 47,518 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $2,528,253 | 81,847 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $7,303,689 | 204,299 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $6,128,836 | 157,311 | Shares | Defined | 2024-02-14 | |
| 2023-06-30 | $2,087,251 | 59,704 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $1,640,328 | 49,482 | Shares | Defined | 2023-05-15 | |
| 2020-09-30 | $1,916,600 | 14,800 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $382,398 | 3,400 | Shares | Defined | 2020-08-12 | |
| No filing history on record for this holder in this stock. | ||||||