GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 636,980 Value ($000) $8,357 Avg Close $12.32 Range $10.71 - $14.02

Q3 2025

Shares 695,157 Value ($000) $8,335 Avg Close $11.59 Range $10.37 - $12.56

Q2 2025

Shares 691,041 Value ($000) $8,424 Avg Close $10.40 Range $7.51 - $12.46

Q1 2025

Shares 632,001 Value ($000) $5,498 Avg Close $9.98 Range $7.58 - $12.54

Q4 2024

Shares 664,091 Value ($000) $7,498 Avg Close $11.96 Range $10.25 - $12.89

Q3 2024

Shares 611,447 Value ($000) $6,439 Avg Close $9.29 Range $7.76 - $10.93

Q2 2024

Shares 583,499 Value ($000) $5,123 Avg Close $8.50 Range $6.55 - $9.76

Q1 2024

Shares 602,585 Value ($000) $5,273 Avg Close $8.23 Range $7.01 - $9.78

Q4 2023

Shares 618,586 Value ($000) $4,751 Avg Close $7.28 Range $6.12 - $8.28

Q3 2023

Shares 618,604 Value ($000) $4,930 Avg Close $8.29 Range $7.53 - $9.67

Q2 2023

Shares 604,483 Value ($000) $4,933 Avg Close $6.49 Range $5.20 - $8.26

Q1 2023

Shares 593,502 Value ($000) $3,223 Avg Close $5.99 Range $4.75 - $7.10

Q4 2022

Shares 606,977 Value ($000) $3,612 Avg Close $7.03 Range $5.52 - $8.25

Q3 2022

Shares 618,927 Value ($000) $4,691 Avg Close $10.47 Range $7.57 - $13.17

Q2 2022

Shares 620,022 Value ($000) $8,128 Avg Close $14.19 Range $12.87 - $15.40

Q1 2022

Shares 623,470 Value ($000) $8,748 Avg Close $14.39 Range $13.24 - $16.27

Q4 2021

Shares 651,760 Value ($000) $10,247 Avg Close $15.22 Range $14.26 - $16.25

Q3 2021

Shares 667,133 Value ($000) $10,067 Avg Close $14.86 Range $13.50 - $15.96

Q2 2021

Shares 667,770 Value ($000) $9,756 Avg Close $14.77 Range $13.32 - $16.28

Q1 2021

Shares 675,748 Value ($000) $9,853 Avg Close $14.58 Range $12.87 - $16.12

Q4 2020

Shares 718,853 Value ($000) $9,467 Avg Close $11.20 Range $9.10 - $13.39

Q3 2020

Shares 754,083 Value ($000) $7,172 Avg Close $9.17 Range $8.17 - $10.57

Q2 2020

Shares 784,078 Value ($000) $7,261 Avg Close $8.75 Range $7.42 - $10.80

Q1 2020

Shares 779,903 Value ($000) $6,473 Avg Close $9.96 Range $6.75 - $11.96

Q4 2019

Shares 772,611 Value ($000) $8,754 Avg Close $10.68 Range $9.02 - $11.94

Q3 2019

Shares 788,333 Value ($000) $8,238 Avg Close $10.57 Range $9.39 - $11.81

Q2 2019

Shares 726,088 Value ($000) $8,015 Avg Close $10.32 Range $8.86 - $11.45

Q1 2019

Shares 705,429 Value ($000) $6,285 Avg Close $7.78 Range $6.43 - $9.21

Q4 2018

Shares 700,783 Value ($000) $4,640 Avg Close $6.52 Range $5.37 - $7.94

Q3 2018

Shares 707,315 Value ($000) $4,386 Avg Close $5.57 Range $4.85 - $6.20

Q2 2018

Shares 682,030 Value ($000) $3,580 Avg Close $4.93 Range $4.38 - $5.45

Q1 2018

Shares 681,150 Value ($000) $3,133 Avg Close $4.74 Range $4.15 - $5.50

Q4 2017

Shares 670,076 Value ($000) $3,618 Avg Close $5.09 Range $4.22 - $5.70

Q3 2017

Shares 737,521 Value ($000) $3,576 Avg Close $4.17 Range $3.60 - $5.15

Q2 2017

Shares 735,756 Value ($000) $3,164 Avg Close $4.36 Range $3.73 - $4.90

Q1 2017

Shares 733,287 Value ($000) $2,933 Avg Close $4.59 Range $3.85 - $5.45

Q4 2016

Shares 719,227 Value ($000) $3,021 Avg Close $4.06 Range $3.05 - $5.00

Q3 2016

Shares 1,386,191 Value ($000) $4,852 Avg Close $4.04 Range $3.49 - $4.97

Q2 2016

Shares 1,467,822 Value ($000) $6,400 Avg Close $4.50 Range $3.96 - $5.09

Q1 2016

Shares 1,461,717 Value ($000) $6,718 Avg Close $3.58 Range $2.96 - $4.50

Q4 2015

Shares 1,420,135 Value ($000) $5,623 Avg Close $4.43 Range $3.66 - $5.88

Q3 2015

Shares 1,466,348 Value ($000) $7,390 Avg Close $5.48 Range $5.00 - $6.17

Q2 2015

Shares 1,100,807 Value ($000) $6,560 Avg Close $5.87 Range $5.33 - $6.30

Q1 2015

Shares 1,519,398 Value ($000) $9,132 Avg Close $7.05 Range $5.53 - $8.64

Q4 2014

Shares 1,409,373 Value ($000) $12,064 Avg Close $7.24 Range $5.84 - $8.73

Q3 2014

Shares 1,337,686 Value ($000) $8,267 Avg Close $7.38 Range $6.16 - $8.29

Q2 2014

Shares 1,161,958 Value ($000) $9,283 Avg Close $8.15 Range $7.36 - $9.20

Q1 2014

Shares 1,364,914 Value ($000) $12,462 Avg Close $8.52 Range $7.45 - $9.44

Q4 2013

Shares 1,261,048 Value ($000) $11,601 Avg Close $8.38 Range $6.99 - $9.33

Q3 2013

Shares 1,223,949 Value ($000) $9,094 Avg Close $7.43 Range $6.28 - $8.69

Q2 2013

Shares 1,241,227 Value ($000) $9,707 Avg Close $7.58 Range $6.30 - $8.66

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	636,980	$8,357	$12.32	$10.71 - $14.02
Q3 2025	695,157	$8,335	$11.59	$10.37 - $12.56
Q2 2025	691,041	$8,424	$10.40	$7.51 - $12.46
Q1 2025	632,001	$5,498	$9.98	$7.58 - $12.54
Q4 2024	664,091	$7,498	$11.96	$10.25 - $12.89
Q3 2024	611,447	$6,439	$9.29	$7.76 - $10.93
Q2 2024	583,499	$5,123	$8.50	$6.55 - $9.76
Q1 2024	602,585	$5,273	$8.23	$7.01 - $9.78
Q4 2023	618,586	$4,751	$7.28	$6.12 - $8.28
Q3 2023	618,604	$4,930	$8.29	$7.53 - $9.67
Q2 2023	604,483	$4,933	$6.49	$5.20 - $8.26
Q1 2023	593,502	$3,223	$5.99	$4.75 - $7.10
Q4 2022	606,977	$3,612	$7.03	$5.52 - $8.25
Q3 2022	618,927	$4,691	$10.47	$7.57 - $13.17
Q2 2022	620,022	$8,128	$14.19	$12.87 - $15.40
Q1 2022	623,470	$8,748	$14.39	$13.24 - $16.27
Q4 2021	651,760	$10,247	$15.22	$14.26 - $16.25
Q3 2021	667,133	$10,067	$14.86	$13.50 - $15.96
Q2 2021	667,770	$9,756	$14.77	$13.32 - $16.28
Q1 2021	675,748	$9,853	$14.58	$12.87 - $16.12
Q4 2020	718,853	$9,467	$11.20	$9.10 - $13.39
Q3 2020	754,083	$7,172	$9.17	$8.17 - $10.57
Q2 2020	784,078	$7,261	$8.75	$7.42 - $10.80
Q1 2020	779,903	$6,473	$9.96	$6.75 - $11.96
Q4 2019	772,611	$8,754	$10.68	$9.02 - $11.94
Q3 2019	788,333	$8,238	$10.57	$9.39 - $11.81
Q2 2019	726,088	$8,015	$10.32	$8.86 - $11.45
Q1 2019	705,429	$6,285	$7.78	$6.43 - $9.21
Q4 2018	700,783	$4,640	$6.52	$5.37 - $7.94
Q3 2018	707,315	$4,386	$5.57	$4.85 - $6.20
Q2 2018	682,030	$3,580	$4.93	$4.38 - $5.45
Q1 2018	681,150	$3,133	$4.74	$4.15 - $5.50
Q4 2017	670,076	$3,618	$5.09	$4.22 - $5.70
Q3 2017	737,521	$3,576	$4.17	$3.60 - $5.15
Q2 2017	735,756	$3,164	$4.36	$3.73 - $4.90
Q1 2017	733,287	$2,933	$4.59	$3.85 - $5.45
Q4 2016	719,227	$3,021	$4.06	$3.05 - $5.00
Q3 2016	1,386,191	$4,852	$4.04	$3.49 - $4.97
Q2 2016	1,467,822	$6,400	$4.50	$3.96 - $5.09
Q1 2016	1,461,717	$6,718	$3.58	$2.96 - $4.50
Q4 2015	1,420,135	$5,623	$4.43	$3.66 - $5.88
Q3 2015	1,466,348	$7,390	$5.48	$5.00 - $6.17
Q2 2015	1,100,807	$6,560	$5.87	$5.33 - $6.30
Q1 2015	1,519,398	$9,132	$7.05	$5.53 - $8.64
Q4 2014	1,409,373	$12,064	$7.24	$5.84 - $8.73
Q3 2014	1,337,686	$8,267	$7.38	$6.16 - $8.29
Q2 2014	1,161,958	$9,283	$8.15	$7.36 - $9.20
Q1 2014	1,364,914	$12,462	$8.52	$7.45 - $9.44
Q4 2013	1,261,048	$11,601	$8.38	$6.99 - $9.33
Q3 2013	1,223,949	$9,094	$7.43	$6.28 - $8.69
Q2 2013	1,241,227	$9,707	$7.58	$6.30 - $8.66