NORTHROP GRUMMAN CORP

Ticker: NOC CUSIP: 666807102 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2025

Shares 31,206 Value ($000) $17,794 Avg Close $578.81 Range $543.66 - $638.31

Q3 2025

Shares 32,320 Value ($000) $19,693 Avg Close $563.27 Range $485.64 - $607.66

Q2 2025

Shares 33,181 Value ($000) $16,590 Avg Close $486.10 Range $444.43 - $537.86

Q1 2025

Shares 31,118 Value ($000) $15,933 Avg Close $470.02 Range $418.96 - $512.32

Q4 2024

Shares 29,120 Value ($000) $13,666 Avg Close $492.97 Range $454.91 - $543.79

Q3 2024

Shares 29,926 Value ($000) $15,803 Avg Close $478.00 Range $412.10 - $523.27

Q2 2024

Shares 30,556 Value ($000) $13,321 Avg Close $444.00 Range $408.11 - $476.20

Q1 2024

Shares 30,961 Value ($000) $14,820 Avg Close $445.90 Range $411.80 - $467.71

Q4 2023

Shares 31,040 Value ($000) $14,531 Avg Close $452.04 Range $399.15 - $478.42

Q3 2023

Shares 28,596 Value ($000) $12,588 Avg Close $421.70 Range $401.22 - $442.91

Q2 2023

Shares 24,896 Value ($000) $11,348 Avg Close $433.83 Range $409.59 - $461.42

Q1 2023

Shares 24,389 Value ($000) $11,261 Avg Close $442.02 Range $409.85 - $521.00

Q4 2022

Shares 24,455 Value ($000) $13 Avg Close $495.16 Range $438.99 - $527.30

Q3 2022

Shares 21,272 Value ($000) $10,005 Avg Close $450.68 Range $409.84 - $488.64

Q2 2022

Shares 21,275 Value ($000) $10,182 Avg Close $432.80 Range $406.48 - $465.03

Q1 2022

Shares 19,634 Value ($000) $8,781 Avg Close $387.65 Range $341.78 - $461.91

Q4 2021

Shares 18,705 Value ($000) $7,240 Avg Close $348.21 Range $322.83 - $380.81

Q3 2021

Shares 18,860 Value ($000) $6,792 Avg Close $336.41 Range $321.89 - $347.54

Q2 2021

Shares 24,172 Value ($000) $8,785 Avg Close $333.78 Range $297.33 - $352.23

Q1 2021

Shares 19,391 Value ($000) $6,276 Avg Close $278.19 Range $260.51 - $301.81

Q4 2020

Shares 19,373 Value ($000) $5,903 Avg Close $280.94 Range $261.36 - $297.23

Q3 2020

Shares 14,366 Value ($000) $4,532 Avg Close $298.08 Range $260.61 - $322.77

Q2 2020

Shares 8,865 Value ($000) $2,725 Avg Close $298.50 Range $264.17 - $324.61

Q1 2020

Shares 10,014 Value ($000) $3,030 Avg Close $315.50 Range $239.34 - $348.69

Q4 2019

Shares 10,093 Value ($000) $3,472 Avg Close $317.67 Range $303.11 - $340.24

Q3 2019

Shares 10,083 Value ($000) $3,779 Avg Close $318.69 Range $285.79 - $346.38

Q2 2019

Shares 9,968 Value ($000) $3,221 Avg Close $267.26 Range $236.79 - $292.13

Q1 2019

Shares 9,923 Value ($000) $2,675 Avg Close $243.65 Range $211.35 - $261.00

Q4 2018

Shares 9,472 Value ($000) $2,320 Avg Close $245.46 Range $199.36 - $285.49

Q3 2018

Shares 14,289 Value ($000) $4,535 Avg Close $269.78 Range $253.73 - $287.48

Q2 2018

Shares 18,255 Value ($000) $5,617 Avg Close $291.51 Range $266.24 - $317.78

Q1 2018

Shares 15,577 Value ($000) $5,438 Avg Close $294.31 Range $266.13 - $315.68

Q4 2017

Shares 15,571 Value ($000) $4,779 Avg Close $263.02 Range $251.27 - $273.10

Q3 2017

Shares 14,163 Value ($000) $4,075 Avg Close $234.97 Range $223.70 - $251.79

Q2 2017

Shares 12,970 Value ($000) $3,330 Avg Close $217.50 Range $204.18 - $228.88

Q1 2017

Shares 12,952 Value ($000) $3,081 Avg Close $205.77 Range $193.67 - $215.78

Q4 2016

Shares 10,104 Value ($000) $2,350 Avg Close $200.65 Range $182.75 - $218.77

Q3 2016

Shares 10,199 Value ($000) $2,182 Avg Close $186.23 Range $178.16 - $192.37

Q2 2016

Shares 14,448 Value ($000) $3,212 Avg Close $180.17 Range $167.24 - $191.50

Q1 2016

Shares 13,427 Value ($000) $2,657 Avg Close $161.05 Range $148.95 - $170.52

Q4 2015

Shares 11,916 Value ($000) $2,250 Avg Close $155.62 Range $137.87 - $164.41

Q3 2015

Shares 12,040 Value ($000) $1,998 Avg Close $141.60 Range $128.46 - $149.14

Q2 2015

Shares 21,761 Value ($000) $3,452 Avg Close $134.61 Range $127.92 - $140.47

Q1 2015

Shares 22,761 Value ($000) $3,664 Avg Close $133.81 Range $118.31 - $143.99

Q4 2014

Shares 36,857 Value ($000) $5,432 Avg Close $114.24 Range $98.32 - $128.02

Q3 2014

Shares 38,136 Value ($000) $5,025 Avg Close $104.60 Range $97.77 - $111.63

Q2 2014

Shares 39,219 Value ($000) $4,692 Avg Close $99.58 Range $95.46 - $103.59

Q1 2014

Shares 48,225 Value ($000) $5,950 Avg Close $97.12 Range $89.29 - $103.07

Q4 2013

Shares 49,071 Value ($000) $5,624 Avg Close $87.28 Range $75.26 - $95.04

Q3 2013

Shares 47,006 Value ($000) $4,478 Avg Close $74.87 Range $66.06 - $80.62

Q2 2013

Shares 47,885 Value ($000) $3,965 Avg Close $62.64 Range $55.45 - $68.16

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	31,206	$17,794	$578.81	$543.66 - $638.31
Q3 2025	32,320	$19,693	$563.27	$485.64 - $607.66
Q2 2025	33,181	$16,590	$486.10	$444.43 - $537.86
Q1 2025	31,118	$15,933	$470.02	$418.96 - $512.32
Q4 2024	29,120	$13,666	$492.97	$454.91 - $543.79
Q3 2024	29,926	$15,803	$478.00	$412.10 - $523.27
Q2 2024	30,556	$13,321	$444.00	$408.11 - $476.20
Q1 2024	30,961	$14,820	$445.90	$411.80 - $467.71
Q4 2023	31,040	$14,531	$452.04	$399.15 - $478.42
Q3 2023	28,596	$12,588	$421.70	$401.22 - $442.91
Q2 2023	24,896	$11,348	$433.83	$409.59 - $461.42
Q1 2023	24,389	$11,261	$442.02	$409.85 - $521.00
Q4 2022	24,455	$13	$495.16	$438.99 - $527.30
Q3 2022	21,272	$10,005	$450.68	$409.84 - $488.64
Q2 2022	21,275	$10,182	$432.80	$406.48 - $465.03
Q1 2022	19,634	$8,781	$387.65	$341.78 - $461.91
Q4 2021	18,705	$7,240	$348.21	$322.83 - $380.81
Q3 2021	18,860	$6,792	$336.41	$321.89 - $347.54
Q2 2021	24,172	$8,785	$333.78	$297.33 - $352.23
Q1 2021	19,391	$6,276	$278.19	$260.51 - $301.81
Q4 2020	19,373	$5,903	$280.94	$261.36 - $297.23
Q3 2020	14,366	$4,532	$298.08	$260.61 - $322.77
Q2 2020	8,865	$2,725	$298.50	$264.17 - $324.61
Q1 2020	10,014	$3,030	$315.50	$239.34 - $348.69
Q4 2019	10,093	$3,472	$317.67	$303.11 - $340.24
Q3 2019	10,083	$3,779	$318.69	$285.79 - $346.38
Q2 2019	9,968	$3,221	$267.26	$236.79 - $292.13
Q1 2019	9,923	$2,675	$243.65	$211.35 - $261.00
Q4 2018	9,472	$2,320	$245.46	$199.36 - $285.49
Q3 2018	14,289	$4,535	$269.78	$253.73 - $287.48
Q2 2018	18,255	$5,617	$291.51	$266.24 - $317.78
Q1 2018	15,577	$5,438	$294.31	$266.13 - $315.68
Q4 2017	15,571	$4,779	$263.02	$251.27 - $273.10
Q3 2017	14,163	$4,075	$234.97	$223.70 - $251.79
Q2 2017	12,970	$3,330	$217.50	$204.18 - $228.88
Q1 2017	12,952	$3,081	$205.77	$193.67 - $215.78
Q4 2016	10,104	$2,350	$200.65	$182.75 - $218.77
Q3 2016	10,199	$2,182	$186.23	$178.16 - $192.37
Q2 2016	14,448	$3,212	$180.17	$167.24 - $191.50
Q1 2016	13,427	$2,657	$161.05	$148.95 - $170.52
Q4 2015	11,916	$2,250	$155.62	$137.87 - $164.41
Q3 2015	12,040	$1,998	$141.60	$128.46 - $149.14
Q2 2015	21,761	$3,452	$134.61	$127.92 - $140.47
Q1 2015	22,761	$3,664	$133.81	$118.31 - $143.99
Q4 2014	36,857	$5,432	$114.24	$98.32 - $128.02
Q3 2014	38,136	$5,025	$104.60	$97.77 - $111.63
Q2 2014	39,219	$4,692	$99.58	$95.46 - $103.59
Q1 2014	48,225	$5,950	$97.12	$89.29 - $103.07
Q4 2013	49,071	$5,624	$87.28	$75.26 - $95.04
Q3 2013	47,006	$4,478	$74.87	$66.06 - $80.62
Q2 2013	47,885	$3,965	$62.64	$55.45 - $68.16