DEXCOM INC

Ticker: DXCM CUSIP: 252131107 Class: EQTY

PATTEN & PATTEN INC/TN's Holding History (CIK: 0001044905)

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

Q4 2025

Shares 64,352 Value ($000) $4,271 Avg Close $64.65 Range $54.11 - $72.08

Q3 2025

Shares 82,751 Value ($000) $5,568 Avg Close $79.14 Range $65.18 - $89.98

Q2 2025

Shares 82,738 Value ($000) $7,222 Avg Close $78.38 Range $57.52 - $88.32

Q1 2025

Shares 77,958 Value ($000) $5,324 Avg Close $81.60 Range $66.25 - $93.25

Q4 2024

Shares 74,811 Value ($000) $5,818 Avg Close $74.04 Range $64.76 - $82.26

Q3 2024

Shares 71,241 Value ($000) $4,776 Avg Close $82.12 Range $62.34 - $117.19

Q2 2024

Shares 47,673 Value ($000) $5,405 Avg Close $126.43 Range $108.71 - $141.99

Q1 2024

Shares 48,359 Value ($000) $6,707 Avg Close $125.70 Range $113.05 - $142.00

Q4 2023

Shares 46,122 Value ($000) $5,723 Avg Close $102.16 Range $74.75 - $126.37

Q3 2023

Shares 45,297 Value ($000) $4,226 Avg Close $112.73 Range $85.31 - $139.55

Q2 2023

Shares 46,559 Value ($000) $5,983 Avg Close $120.95 Range $110.90 - $134.14

Q1 2023

Shares 47,509 Value ($000) $5,520 Avg Close $111.94 Range $102.50 - $123.14

Q4 2022

Shares 47,609 Value ($000) $5 Avg Close $109.79 Range $81.06 - $125.55

Q3 2022

Shares 48,529 Value ($000) $3,909 Avg Close $84.70 Range $73.93 - $94.60

Q2 2022

Shares 47,156 Value ($000) $3,515 Avg Close $91.26 Range $66.89 - $134.76

Q1 2022

Shares 11,834 Value ($000) $6,054 Avg Close $109.39 Range $91.43 - $133.20

Q4 2021

Shares 11,526 Value ($000) $6,189 Avg Close $143.69 Range $127.62 - $164.86

Q3 2021

Shares 11,871 Value ($000) $6,492 Avg Close $126.11 Range $105.19 - $144.75

Q2 2021

Shares 12,100 Value ($000) $5,167 Avg Close $96.03 Range $79.61 - $109.91

Q1 2021

Shares 12,285 Value ($000) $4,415 Avg Close $93.87 Range $84.28 - $105.85

Q4 2020

Shares 12,445 Value ($000) $4,601 Avg Close $89.29 Range $76.41 - $105.00

Q3 2020

Shares 12,445 Value ($000) $5,130 Avg Close $104.48 Range $93.91 - $114.06

Q2 2020

Shares 12,770 Value ($000) $5,177 Avg Close $89.45 Range $62.50 - $107.15

Q1 2020

Shares 13,858 Value ($000) $3,732 Avg Close $62.23 Range $45.52 - $76.68

Q4 2019

Shares 13,913 Value ($000) $3,043 Avg Close $47.43 Range $36.31 - $58.00

Q3 2019

Shares 14,188 Value ($000) $2,117 Avg Close $38.85 Range $34.57 - $44.61

Q2 2019

Shares 13,708 Value ($000) $2,054 Avg Close $31.43 Range $26.86 - $39.38

Q1 2019

Shares 11,673 Value ($000) $1,390 Avg Close $35.14 Range $27.58 - $39.04

Q4 2018

Shares 12,813 Value ($000) $1,535 Avg Close $31.72 Range $26.26 - $38.03

Q3 2018

Shares 20,020 Value ($000) $2,864 Avg Close $31.00 Range $23.08 - $37.14

Q2 2018

Shares 23,525 Value ($000) $2,234 Avg Close $21.20 Range $17.38 - $25.52

Q1 2018

Shares 21,225 Value ($000) $1,574 Avg Close $14.79 Range $12.76 - $18.82

Q4 2017

Shares 20,050 Value ($000) $1,151 Avg Close $13.00 Range $10.94 - $15.59

Q3 2017

Shares 49,905 Value ($000) $2,442 Avg Close $17.68 Range $10.65 - $19.73

Q2 2017

Shares 45,870 Value ($000) $3,355 Avg Close $18.47 Range $16.54 - $21.33

Q1 2017

Shares 46,420 Value ($000) $3,933 Avg Close $19.52 Range $14.42 - $22.20

Q4 2016

Shares 43,370 Value ($000) $2,589 Avg Close $17.71 Range $14.84 - $21.95

Q3 2016

Shares 49,775 Value ($000) $4,363 Avg Close $22.24 Range $19.05 - $24.09

Q2 2016

Shares 50,425 Value ($000) $4,000 Avg Close $17.03 Range $15.02 - $20.31

Q1 2016

Shares 48,650 Value ($000) $3,304 Avg Close $16.70 Range $11.98 - $20.97

Q4 2015

Shares 23,250 Value ($000) $1,904 Avg Close $20.81 Range $17.57 - $22.36

Q3 2015

Shares 10,950 Value ($000) $940 Avg Close $22.31 Range $19.11 - $25.82

Q2 2015

Shares 10,050 Value ($000) $804 Avg Close $17.56 Range $15.20 - $20.14

Q1 2015

Shares 9,335 Value ($000) $582 Avg Close $15.11 Range $13.32 - $16.16

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	64,352	$4,271	$64.65	$54.11 - $72.08
Q3 2025	82,751	$5,568	$79.14	$65.18 - $89.98
Q2 2025	82,738	$7,222	$78.38	$57.52 - $88.32
Q1 2025	77,958	$5,324	$81.60	$66.25 - $93.25
Q4 2024	74,811	$5,818	$74.04	$64.76 - $82.26
Q3 2024	71,241	$4,776	$82.12	$62.34 - $117.19
Q2 2024	47,673	$5,405	$126.43	$108.71 - $141.99
Q1 2024	48,359	$6,707	$125.70	$113.05 - $142.00
Q4 2023	46,122	$5,723	$102.16	$74.75 - $126.37
Q3 2023	45,297	$4,226	$112.73	$85.31 - $139.55
Q2 2023	46,559	$5,983	$120.95	$110.90 - $134.14
Q1 2023	47,509	$5,520	$111.94	$102.50 - $123.14
Q4 2022	47,609	$5	$109.79	$81.06 - $125.55
Q3 2022	48,529	$3,909	$84.70	$73.93 - $94.60
Q2 2022	47,156	$3,515	$91.26	$66.89 - $134.76
Q1 2022	11,834	$6,054	$109.39	$91.43 - $133.20
Q4 2021	11,526	$6,189	$143.69	$127.62 - $164.86
Q3 2021	11,871	$6,492	$126.11	$105.19 - $144.75
Q2 2021	12,100	$5,167	$96.03	$79.61 - $109.91
Q1 2021	12,285	$4,415	$93.87	$84.28 - $105.85
Q4 2020	12,445	$4,601	$89.29	$76.41 - $105.00
Q3 2020	12,445	$5,130	$104.48	$93.91 - $114.06
Q2 2020	12,770	$5,177	$89.45	$62.50 - $107.15
Q1 2020	13,858	$3,732	$62.23	$45.52 - $76.68
Q4 2019	13,913	$3,043	$47.43	$36.31 - $58.00
Q3 2019	14,188	$2,117	$38.85	$34.57 - $44.61
Q2 2019	13,708	$2,054	$31.43	$26.86 - $39.38
Q1 2019	11,673	$1,390	$35.14	$27.58 - $39.04
Q4 2018	12,813	$1,535	$31.72	$26.26 - $38.03
Q3 2018	20,020	$2,864	$31.00	$23.08 - $37.14
Q2 2018	23,525	$2,234	$21.20	$17.38 - $25.52
Q1 2018	21,225	$1,574	$14.79	$12.76 - $18.82
Q4 2017	20,050	$1,151	$13.00	$10.94 - $15.59
Q3 2017	49,905	$2,442	$17.68	$10.65 - $19.73
Q2 2017	45,870	$3,355	$18.47	$16.54 - $21.33
Q1 2017	46,420	$3,933	$19.52	$14.42 - $22.20
Q4 2016	43,370	$2,589	$17.71	$14.84 - $21.95
Q3 2016	49,775	$4,363	$22.24	$19.05 - $24.09
Q2 2016	50,425	$4,000	$17.03	$15.02 - $20.31
Q1 2016	48,650	$3,304	$16.70	$11.98 - $20.97
Q4 2015	23,250	$1,904	$20.81	$17.57 - $22.36
Q3 2015	10,950	$940	$22.31	$19.11 - $25.82
Q2 2015	10,050	$804	$17.56	$15.20 - $20.14
Q1 2015	9,335	$582	$15.11	$13.32 - $16.16