RENAISSANCE TECHNOLOGIES LLC
Position in GLDD — Great Lakes Dredge & Dock CORP
CIK 1037389
NEW YORK, NY
Position in GLDD
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$6,488,900
+$3,093,563 QoQ
Shares Held
381,700
+47.5% QoQ
Ownership
0.572%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#35
of 181 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in GLDD Over Time
Shares Held
Position Value (USD)
Position in Engineering & Construction
Industrials · as of Mar 31, 2026RENAISSANCE TECHNOLOGIES LLC holds $1,126,501,135 across 35 Engineering & Construction names. GLDD ranks #19 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AGX |
Argan Inc
|
610,899 | $332,726,140 | |
| 2 | STRL |
Sterling Infrastructure, Inc.
|
766,914 | $312,341,064 | |
| 3 | FIX |
Comfort Systems USA Inc
|
56,660 | $78,133,573 | |
| 4 | TPC |
Tutor Perini Corp
|
829,980 | $64,066,156 | |
| 5 | ACM |
Aecom
|
662,277 | $56,174,335 | |
| 6 | J |
Jacobs Solutions Inc.
|
390,000 | $49,639,200 | |
| 7 | IESC |
IES Holdings, Inc.
|
82,352 | $39,238,257 | |
| 8 | LGN |
Legence Corp.
|
579,700 | $32,729,862 |
All Filings in GLDD
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,488,900 | 381,700 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $3,395,337 | 258,791 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $3,058,121 | 255,056 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $4,685,689 | 384,388 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $1,012,680 | 116,400 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $3,145,405 | 278,601 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $2,433,493 | 231,101 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $2,858,776 | 325,601 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $4,054,960 | 463,424 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $5,100,295 | 664,101 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $4,863,301 | 610,201 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $5,955,176 | 729,801 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $5,894,270 | 1,085,501 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $7,494,233 | 1,259,535 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $9,708,471 | 1,280,801 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $19,304,488 | 1,472,501 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $20,921,550 | 1,491,201 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $24,204,099 | 1,539,701 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $24,509,193 | 1,624,201 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $26,004,353 | 1,779,901 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $31,342,130 | 2,149,666 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $30,612,361 | 2,324,401 | Shares | Sole | 2021-02-10 | |
| 2020-09-30 | $23,497,317 | 2,470,801 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $23,189,827 | 2,504,301 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $20,849,608 | 2,512,001 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||