NAPCO SEC TECHNOLOGIES INC

Ticker: NSSC CUSIP: 630402105 Class: Common Stock

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2025

Shares 671,243 Value ($000) $27,991 Avg Close $41.96 Range $37.43 - $47.96

Q3 2025

Shares 678,085 Value ($000) $29,123 Avg Close $34.48 Range $29.03 - $44.88

Q2 2025

Shares 719,345 Value ($000) $21,358 Avg Close $25.46 Range $18.78 - $30.03

Q1 2025

Shares 850,845 Value ($000) $19,586 Avg Close $27.92 Range $22.10 - $37.25

Q4 2024

Shares 1,016,554 Value ($000) $36,149 Avg Close $37.64 Range $31.15 - $41.75

Q3 2024

Shares 1,016,042 Value ($000) $41,110 Avg Close $47.92 Range $31.06 - $56.76

Q2 2024

Shares 1,070,334 Value ($000) $55,604 Avg Close $44.67 Range $36.90 - $52.36

Q1 2024

Shares 1,187,485 Value ($000) $47,689 Avg Close $38.22 Range $30.42 - $45.01

Q4 2023

Shares 1,189,859 Value ($000) $40,754 Avg Close $25.76 Range $17.23 - $35.09

Q3 2023

Shares 1,235,785 Value ($000) $27,497 Avg Close $29.36 Range $19.36 - $37.73

Q2 2023

Shares 1,223,334 Value ($000) $42,390 Avg Close $33.75 Range $25.82 - $39.90

Q1 2023

Shares 1,211,763 Value ($000) $45,537 Avg Close $30.76 Range $24.89 - $37.87

Q4 2022

Shares 1,242,654 Value ($000) $34 Avg Close $26.04 Range $23.40 - $29.16

Q3 2022

Shares 1,252,792 Value ($000) $36,432 Avg Close $25.79 Range $19.06 - $30.22

Q2 2022

Shares 1,251,800 Value ($000) $25,774 Avg Close $18.16 Range $15.06 - $20.96

Q1 2022

Shares 1,273,636 Value ($000) $26,136 Avg Close $20.05 Range $14.86 - $24.28

Q4 2021

Shares 635,158 Value ($000) $31,744 Avg Close $22.78 Range $20.22 - $25.10

Q3 2021

Shares 649,126 Value ($000) $27,965 Avg Close $18.08 Range $15.95 - $21.96

Q2 2021

Shares 655,895 Value ($000) $23,856 Avg Close $16.55 Range $14.80 - $18.34

Q1 2021

Shares 665,714 Value ($000) $23,186 Avg Close $14.89 Range $12.20 - $17.51

Q4 2020

Shares 704,539 Value ($000) $18,473 Avg Close $13.01 Range $11.05 - $15.30

Q3 2020

Shares 762,921 Value ($000) $17,929 Avg Close $11.63 Range $8.61 - $13.25

Q2 2020

Shares 789,965 Value ($000) $18,477 Avg Close $10.12 Range $6.44 - $12.75

Q1 2020

Shares 806,519 Value ($000) $12,235 Avg Close $11.36 Range $7.07 - $15.97

Q4 2019

Shares 868,171 Value ($000) $25,516 Avg Close $14.00 Range $11.95 - $15.43

Q3 2019

Shares 937,850 Value ($000) $23,934 Avg Close $13.60 Range $11.67 - $16.78

Q2 2019

Shares 956,737 Value ($000) $28,396 Avg Close $12.80 Range $9.65 - $16.85

Q1 2019

Shares 961,519 Value ($000) $19,942 Avg Close $9.07 Range $6.87 - $10.93

Q4 2018

Shares 969,107 Value ($000) $15,263 Avg Close $7.37 Range $6.24 - $8.56

Q3 2018

Shares 966,152 Value ($000) $14,444 Avg Close $7.46 Range $6.23 - $8.42

Q2 2018

Shares 946,785 Value ($000) $13,870 Avg Close $5.70 Range $4.97 - $7.68

Q1 2018

Shares 941,471 Value ($000) $11,015 Avg Close $4.68 Range $4.06 - $5.74

Q4 2017

Shares 927,056 Value ($000) $8,112 Avg Close $4.62 Range $3.81 - $5.18

Q3 2017

Shares 916,259 Value ($000) $8,888 Avg Close $4.31 Range $3.57 - $4.84

Q2 2017

Shares 903,086 Value ($000) $8,489 Avg Close $4.72 Range $4.18 - $5.23

Q1 2017

Shares 899,282 Value ($000) $9,173 Avg Close $4.49 Range $3.67 - $5.29

Q4 2016

Shares 908,246 Value ($000) $7,720 Avg Close $3.70 Range $3.32 - $4.13

Q3 2016

Shares 913,029 Value ($000) $6,574 Avg Close $3.42 Range $3.03 - $3.74

Q2 2016

Shares 905,092 Value ($000) $5,756 Avg Close $2.95 Range $2.69 - $3.28

Q1 2016

Shares 911,407 Value ($000) $5,696 Avg Close $2.80 Range $2.44 - $3.09

Q4 2015

Shares 908,978 Value ($000) $5,363 Avg Close $3.00 Range $2.51 - $3.67

Q3 2015

Shares 900,082 Value ($000) $5,445 Avg Close $2.80 Range $2.56 - $3.07

Q2 2015

Shares 900,482 Value ($000) $5,160 Avg Close $2.67 Range $2.39 - $2.97

Q1 2015

Shares 744,990 Value ($000) $4,313 Avg Close $2.54 Range $2.18 - $2.89

Q4 2014

Shares 747,090 Value ($000) $3,511 Avg Close $2.14 Range $1.92 - $2.32

Q3 2014

Shares 765,121 Value ($000) $3,596 Avg Close $2.38 Range $2.06 - $2.70

Q2 2014

Shares 769,713 Value ($000) $4,180 Avg Close $2.85 Range $2.38 - $3.30

Q1 2014

Shares 773,300 Value ($000) $5,127 Avg Close $3.29 Range $2.92 - $3.72

Q4 2013

Shares 762,181 Value ($000) $4,786 Avg Close $2.83 Range $2.34 - $3.17

Q3 2013

Shares 761,306 Value ($000) $4,043 Avg Close $2.44 Range $2.23 - $2.93

Q2 2013

Shares 764,440 Value ($000) $3,654 Avg Close $2.09 Range $1.86 - $2.33

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	671,243	$27,991	$41.96	$37.43 - $47.96
Q3 2025	678,085	$29,123	$34.48	$29.03 - $44.88
Q2 2025	719,345	$21,358	$25.46	$18.78 - $30.03
Q1 2025	850,845	$19,586	$27.92	$22.10 - $37.25
Q4 2024	1,016,554	$36,149	$37.64	$31.15 - $41.75
Q3 2024	1,016,042	$41,110	$47.92	$31.06 - $56.76
Q2 2024	1,070,334	$55,604	$44.67	$36.90 - $52.36
Q1 2024	1,187,485	$47,689	$38.22	$30.42 - $45.01
Q4 2023	1,189,859	$40,754	$25.76	$17.23 - $35.09
Q3 2023	1,235,785	$27,497	$29.36	$19.36 - $37.73
Q2 2023	1,223,334	$42,390	$33.75	$25.82 - $39.90
Q1 2023	1,211,763	$45,537	$30.76	$24.89 - $37.87
Q4 2022	1,242,654	$34	$26.04	$23.40 - $29.16
Q3 2022	1,252,792	$36,432	$25.79	$19.06 - $30.22
Q2 2022	1,251,800	$25,774	$18.16	$15.06 - $20.96
Q1 2022	1,273,636	$26,136	$20.05	$14.86 - $24.28
Q4 2021	635,158	$31,744	$22.78	$20.22 - $25.10
Q3 2021	649,126	$27,965	$18.08	$15.95 - $21.96
Q2 2021	655,895	$23,856	$16.55	$14.80 - $18.34
Q1 2021	665,714	$23,186	$14.89	$12.20 - $17.51
Q4 2020	704,539	$18,473	$13.01	$11.05 - $15.30
Q3 2020	762,921	$17,929	$11.63	$8.61 - $13.25
Q2 2020	789,965	$18,477	$10.12	$6.44 - $12.75
Q1 2020	806,519	$12,235	$11.36	$7.07 - $15.97
Q4 2019	868,171	$25,516	$14.00	$11.95 - $15.43
Q3 2019	937,850	$23,934	$13.60	$11.67 - $16.78
Q2 2019	956,737	$28,396	$12.80	$9.65 - $16.85
Q1 2019	961,519	$19,942	$9.07	$6.87 - $10.93
Q4 2018	969,107	$15,263	$7.37	$6.24 - $8.56
Q3 2018	966,152	$14,444	$7.46	$6.23 - $8.42
Q2 2018	946,785	$13,870	$5.70	$4.97 - $7.68
Q1 2018	941,471	$11,015	$4.68	$4.06 - $5.74
Q4 2017	927,056	$8,112	$4.62	$3.81 - $5.18
Q3 2017	916,259	$8,888	$4.31	$3.57 - $4.84
Q2 2017	903,086	$8,489	$4.72	$4.18 - $5.23
Q1 2017	899,282	$9,173	$4.49	$3.67 - $5.29
Q4 2016	908,246	$7,720	$3.70	$3.32 - $4.13
Q3 2016	913,029	$6,574	$3.42	$3.03 - $3.74
Q2 2016	905,092	$5,756	$2.95	$2.69 - $3.28
Q1 2016	911,407	$5,696	$2.80	$2.44 - $3.09
Q4 2015	908,978	$5,363	$3.00	$2.51 - $3.67
Q3 2015	900,082	$5,445	$2.80	$2.56 - $3.07
Q2 2015	900,482	$5,160	$2.67	$2.39 - $2.97
Q1 2015	744,990	$4,313	$2.54	$2.18 - $2.89
Q4 2014	747,090	$3,511	$2.14	$1.92 - $2.32
Q3 2014	765,121	$3,596	$2.38	$2.06 - $2.70
Q2 2014	769,713	$4,180	$2.85	$2.38 - $3.30
Q1 2014	773,300	$5,127	$3.29	$2.92 - $3.72
Q4 2013	762,181	$4,786	$2.83	$2.34 - $3.17
Q3 2013	761,306	$4,043	$2.44	$2.23 - $2.93
Q2 2013	764,440	$3,654	$2.09	$1.86 - $2.33