CISCO SYS INC

Ticker: CSCO CUSIP: 17275R102 Class: COM

MOUNT VERNON ASSOCIATES INC /MD/'s Holding History (CIK: 0000799003)

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

Q4 2025

Shares 40,979 Value ($000) $3 Avg Close $73.79 Range $66.45 - $80.39

Q3 2025

Shares 40,979 Value ($000) $3 Avg Close $67.38 Range $65.01 - $71.73

Q2 2025

Shares 41,379 Value ($000) $3 Avg Close $60.38 Range $51.21 - $68.58

Q1 2025

Shares 41,229 Value ($000) $3 Avg Close $60.10 Range $56.79 - $64.92

Q4 2024

Shares 41,055 Value ($000) $2 Avg Close $55.37 Range $50.34 - $58.40

Q3 2024

Shares 41,055 Value ($000) $2 Avg Close $46.78 Range $42.82 - $51.30

Q2 2024

Shares 39,755 Value ($000) $2 Avg Close $45.29 Range $42.89 - $47.90

Q1 2024

Shares 41,723 Value ($000) $2 Avg Close $47.21 Range $45.11 - $49.80

Q4 2023

Shares 41,723 Value ($000) $2 Avg Close $47.98 Range $43.39 - $51.27

Q3 2023

Shares 42,423 Value ($000) $2 Avg Close $50.30 Range $46.67 - $54.25

Q2 2023

Shares 42,323 Value ($000) $2 Avg Close $45.51 Range $42.16 - $48.50

Q1 2023

Shares 42,323 Value ($000) $2 Avg Close $44.85 Range $41.95 - $48.08

Q4 2022

Shares 42,573 Value ($000) $2 Avg Close $41.47 Range $35.17 - $46.21

Q3 2022

Shares 42,573 Value ($000) $1,703 Avg Close $40.05 Range $36.08 - $45.14

Q2 2022

Shares 42,323 Value ($000) $1,805 Avg Close $42.82 Range $36.70 - $49.93

Q1 2022

Shares 42,323 Value ($000) $2,360 Avg Close $50.28 Range $46.83 - $55.97

Q4 2021

Shares 43,008 Value ($000) $2,725 Avg Close $50.47 Range $45.13 - $56.80

Q3 2021

Shares 43,008 Value ($000) $2,341 Avg Close $49.23 Range $45.93 - $52.89

Q2 2021

Shares 42,758 Value ($000) $2,266 Avg Close $45.84 Range $43.66 - $48.23

Q1 2021

Shares 42,758 Value ($000) $2,211 Avg Close $40.62 Range $37.51 - $45.81

Q4 2020

Shares 42,758 Value ($000) $1,913 Avg Close $35.27 Range $30.28 - $39.11

Q3 2020

Shares 42,608 Value ($000) $1,678 Avg Close $37.06 Range $31.98 - $41.20

Q2 2020

Shares 44,308 Value ($000) $2,067 Avg Close $37.00 Range $31.62 - $40.75

Q1 2020

Shares 44,608 Value ($000) $1,754 Avg Close $36.67 Range $27.08 - $42.03

Q4 2019

Shares 45,690 Value ($000) $2,191 Avg Close $38.56 Range $36.01 - $41.07

Q3 2019

Shares 45,690 Value ($000) $2,258 Avg Close $42.79 Range $37.88 - $47.98

Q2 2019

Shares 46,190 Value ($000) $2,528 Avg Close $45.18 Range $41.79 - $47.59

Q1 2019

Shares 46,490 Value ($000) $2,510 Avg Close $39.51 Range $33.31 - $44.10

Q4 2018

Shares 46,823 Value ($000) $2,029 Avg Close $36.91 Range $32.48 - $39.65

Q3 2018

Shares 46,773 Value ($000) $2,276 Avg Close $36.04 Range $32.82 - $39.32

Q2 2018

Shares 47,293 Value ($000) $2,035 Avg Close $34.74 Range $31.96 - $36.88

Q1 2018

Shares 48,593 Value ($000) $2,084 Avg Close $33.46 Range $29.47 - $36.42

Q4 2017

Shares 47,493 Value ($000) $1,819 Avg Close $27.97 Range $25.98 - $30.54

Q3 2017

Shares 48,093 Value ($000) $1,617 Avg Close $24.71 Range $23.57 - $26.48

Q2 2017

Shares 47,525 Value ($000) $1,488 Avg Close $25.06 Range $23.36 - $26.62

Q1 2017

Shares 45,570 Value ($000) $1,540 Avg Close $24.73 Range $22.73 - $26.33

Q4 2016

Shares 45,170 Value ($000) $1,365 Avg Close $23.05 Range $22.02 - $24.11

Q3 2016

Shares 45,170 Value ($000) $1,433 Avg Close $23.06 Range $21.13 - $23.96

Q2 2016

Shares 45,670 Value ($000) $1,310 Avg Close $20.86 Range $19.18 - $21.86

Q1 2016

Shares 43,750 Value ($000) $1,246 Avg Close $18.95 Range $16.54 - $21.12

Q4 2015

Shares 46,050 Value ($000) $1,250 Avg Close $20.16 Range $18.52 - $21.55

Q3 2015

Shares 46,050 Value ($000) $1,209 Avg Close $19.57 Range $16.69 - $21.17

Q2 2015

Shares 45,550 Value ($000) $1,251 Avg Close $20.63 Range $19.31 - $21.51

Q1 2015

Shares 45,850 Value ($000) $1,262 Avg Close $20.10 Range $18.50 - $21.64

Q4 2014

Shares 41,450 Value ($000) $1,153 Avg Close $18.31 Range $15.95 - $20.27

Q3 2014

Shares 41,150 Value ($000) $1,036 Avg Close $17.70 Range $17.08 - $18.35

Q2 2014

Shares 41,150 Value ($000) $1,023 Avg Close $16.64 Range $15.57 - $17.58

Q1 2014

Shares 41,250 Value ($000) $925 Avg Close $15.30 Range $14.73 - $15.92

Q4 2013

Shares 41,575 Value ($000) $933 Avg Close $15.20 Range $13.89 - $16.49

Q3 2013

Shares 42,275 Value ($000) $991 Avg Close $16.93 Range $15.70 - $18.07

Q2 2013

Shares 109,575 Value ($000) $2,667 Avg Close $15.24 Range $13.53 - $16.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	40,979	$3	$73.79	$66.45 - $80.39
Q3 2025	40,979	$3	$67.38	$65.01 - $71.73
Q2 2025	41,379	$3	$60.38	$51.21 - $68.58
Q1 2025	41,229	$3	$60.10	$56.79 - $64.92
Q4 2024	41,055	$2	$55.37	$50.34 - $58.40
Q3 2024	41,055	$2	$46.78	$42.82 - $51.30
Q2 2024	39,755	$2	$45.29	$42.89 - $47.90
Q1 2024	41,723	$2	$47.21	$45.11 - $49.80
Q4 2023	41,723	$2	$47.98	$43.39 - $51.27
Q3 2023	42,423	$2	$50.30	$46.67 - $54.25
Q2 2023	42,323	$2	$45.51	$42.16 - $48.50
Q1 2023	42,323	$2	$44.85	$41.95 - $48.08
Q4 2022	42,573	$2	$41.47	$35.17 - $46.21
Q3 2022	42,573	$1,703	$40.05	$36.08 - $45.14
Q2 2022	42,323	$1,805	$42.82	$36.70 - $49.93
Q1 2022	42,323	$2,360	$50.28	$46.83 - $55.97
Q4 2021	43,008	$2,725	$50.47	$45.13 - $56.80
Q3 2021	43,008	$2,341	$49.23	$45.93 - $52.89
Q2 2021	42,758	$2,266	$45.84	$43.66 - $48.23
Q1 2021	42,758	$2,211	$40.62	$37.51 - $45.81
Q4 2020	42,758	$1,913	$35.27	$30.28 - $39.11
Q3 2020	42,608	$1,678	$37.06	$31.98 - $41.20
Q2 2020	44,308	$2,067	$37.00	$31.62 - $40.75
Q1 2020	44,608	$1,754	$36.67	$27.08 - $42.03
Q4 2019	45,690	$2,191	$38.56	$36.01 - $41.07
Q3 2019	45,690	$2,258	$42.79	$37.88 - $47.98
Q2 2019	46,190	$2,528	$45.18	$41.79 - $47.59
Q1 2019	46,490	$2,510	$39.51	$33.31 - $44.10
Q4 2018	46,823	$2,029	$36.91	$32.48 - $39.65
Q3 2018	46,773	$2,276	$36.04	$32.82 - $39.32
Q2 2018	47,293	$2,035	$34.74	$31.96 - $36.88
Q1 2018	48,593	$2,084	$33.46	$29.47 - $36.42
Q4 2017	47,493	$1,819	$27.97	$25.98 - $30.54
Q3 2017	48,093	$1,617	$24.71	$23.57 - $26.48
Q2 2017	47,525	$1,488	$25.06	$23.36 - $26.62
Q1 2017	45,570	$1,540	$24.73	$22.73 - $26.33
Q4 2016	45,170	$1,365	$23.05	$22.02 - $24.11
Q3 2016	45,170	$1,433	$23.06	$21.13 - $23.96
Q2 2016	45,670	$1,310	$20.86	$19.18 - $21.86
Q1 2016	43,750	$1,246	$18.95	$16.54 - $21.12
Q4 2015	46,050	$1,250	$20.16	$18.52 - $21.55
Q3 2015	46,050	$1,209	$19.57	$16.69 - $21.17
Q2 2015	45,550	$1,251	$20.63	$19.31 - $21.51
Q1 2015	45,850	$1,262	$20.10	$18.50 - $21.64
Q4 2014	41,450	$1,153	$18.31	$15.95 - $20.27
Q3 2014	41,150	$1,036	$17.70	$17.08 - $18.35
Q2 2014	41,150	$1,023	$16.64	$15.57 - $17.58
Q1 2014	41,250	$925	$15.30	$14.73 - $15.92
Q4 2013	41,575	$933	$15.20	$13.89 - $16.49
Q3 2013	42,275	$991	$16.93	$15.70 - $18.07
Q2 2013	109,575	$2,667	$15.24	$13.53 - $16.92