NORTHWEST NAT HLDG CO

Ticker: NWN CUSIP: 66765N105 Class: Common Stock

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q4 2025

Shares 38,836 Value ($000) $1,815 Avg Close $46.64 Range $43.64 - $49.63

Q3 2025

Shares 53,197 Value ($000) $2,390 Avg Close $41.49 Range $39.29 - $45.05

Q2 2025

Shares 51,126 Value ($000) $2,031 Avg Close $41.46 Range $38.94 - $44.38

Q1 2025

Shares 49,923 Value ($000) $2,133 Avg Close $40.77 Range $38.03 - $43.24

Q4 2024

Shares 48,833 Value ($000) $1,932 Avg Close $40.79 Range $38.03 - $44.25

Q3 2024

Shares 50,124 Value ($000) $2,046 Avg Close $39.06 Range $35.10 - $41.20

Q2 2024

Shares 21,631 Value ($000) $781 Avg Close $36.97 Range $34.82 - $39.20

Q1 2024

Shares 21,327 Value ($000) $794 Avg Close $37.39 Range $34.95 - $40.28

Q4 2023

Shares 40,658 Value ($000) $1,583 Avg Close $38.01 Range $35.72 - $40.66

Q3 2023

Shares 40,157 Value ($000) $1,532 Avg Close $41.10 Range $37.79 - $44.90

Q2 2023

Shares 39,156 Value ($000) $1,686 Avg Close $45.19 Range $41.75 - $49.09

Q1 2023

Shares 38,456 Value ($000) $1,829 Avg Close $48.34 Range $44.74 - $52.39

Q4 2022

Shares 38,355 Value ($000) $1,825 Avg Close $46.89 Range $42.37 - $50.64

Q3 2022

Shares 35,364 Value ($000) $1,535 Avg Close $50.70 Range $43.29 - $54.72

Q2 2022

Shares 32,213 Value ($000) $1,711 Avg Close $51.60 Range $46.91 - $55.97

Q1 2022

Shares 21,159 Value ($000) $1,096 Avg Close $50.16 Range $45.81 - $57.63

Q4 2021

Shares 20,759 Value ($000) $1,014 Avg Close $46.53 Range $43.07 - $49.10

Q3 2021

Shares 11,851 Value ($000) $546 Avg Close $51.11 Range $45.09 - $54.48

Q1 2021

Shares 4,000 Value ($000) $216 Avg Close $47.98 Range $41.71 - $54.27

Q4 2020

Shares 9,108 Value ($000) $419 Avg Close $47.35 Range $42.33 - $52.30

Q3 2020

Shares 34,108 Value ($000) $1,549 Avg Close $51.04 Range $43.34 - $56.58

Q2 2020

Shares 77,208 Value ($000) $4,308 Avg Close $61.09 Range $52.39 - $67.24

Q1 2020

Shares 77,208 Value ($000) $4,768 Avg Close $69.90 Range $50.50 - $77.26

Q4 2019

Shares 81,708 Value ($000) $6,025 Avg Close $69.05 Range $62.87 - $74.13

Q3 2019

Shares 30,002 Value ($000) $2,142 Avg Close $70.88 Range $68.42 - $73.50

Q4 2018

Shares 20,202 Value ($000) $1,222 Avg Close $66.85 Range $57.94 - $71.81

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	38,836	$1,815	$46.64	$43.64 - $49.63
Q3 2025	53,197	$2,390	$41.49	$39.29 - $45.05
Q2 2025	51,126	$2,031	$41.46	$38.94 - $44.38
Q1 2025	49,923	$2,133	$40.77	$38.03 - $43.24
Q4 2024	48,833	$1,932	$40.79	$38.03 - $44.25
Q3 2024	50,124	$2,046	$39.06	$35.10 - $41.20
Q2 2024	21,631	$781	$36.97	$34.82 - $39.20
Q1 2024	21,327	$794	$37.39	$34.95 - $40.28
Q4 2023	40,658	$1,583	$38.01	$35.72 - $40.66
Q3 2023	40,157	$1,532	$41.10	$37.79 - $44.90
Q2 2023	39,156	$1,686	$45.19	$41.75 - $49.09
Q1 2023	38,456	$1,829	$48.34	$44.74 - $52.39
Q4 2022	38,355	$1,825	$46.89	$42.37 - $50.64
Q3 2022	35,364	$1,535	$50.70	$43.29 - $54.72
Q2 2022	32,213	$1,711	$51.60	$46.91 - $55.97
Q1 2022	21,159	$1,096	$50.16	$45.81 - $57.63
Q4 2021	20,759	$1,014	$46.53	$43.07 - $49.10
Q3 2021	11,851	$546	$51.11	$45.09 - $54.48
Q1 2021	4,000	$216	$47.98	$41.71 - $54.27
Q4 2020	9,108	$419	$47.35	$42.33 - $52.30
Q3 2020	34,108	$1,549	$51.04	$43.34 - $56.58
Q2 2020	77,208	$4,308	$61.09	$52.39 - $67.24
Q1 2020	77,208	$4,768	$69.90	$50.50 - $77.26
Q4 2019	81,708	$6,025	$69.05	$62.87 - $74.13
Q3 2019	30,002	$2,142	$70.88	$68.42 - $73.50
Q4 2018	20,202	$1,222	$66.85	$57.94 - $71.81