DEXCOM INC

Ticker: DXCM CUSIP: 252131107 Class: EQTY

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 192,079 Value ($000) $12,748 Avg Close $64.65 Range $54.11 - $72.08

Q3 2025

Shares 1,709,315 Value ($000) $115,020 Avg Close $79.14 Range $65.18 - $89.98

Q2 2025

Shares 3,822,085 Value ($000) $333,630 Avg Close $78.38 Range $57.52 - $88.32

Q1 2025

Shares 1,059,581 Value ($000) $72,359 Avg Close $81.60 Range $66.25 - $93.25

Q4 2024

Shares 539,295 Value ($000) $41,941 Avg Close $74.04 Range $64.76 - $82.26

Q3 2024

Shares 264,000 Value ($000) $17,699 Avg Close $82.12 Range $62.34 - $117.19

Q2 2024

Shares 351,305 Value ($000) $39,831 Avg Close $126.43 Range $108.71 - $141.99

Q1 2024

Shares 264,000 Value ($000) $36,617 Avg Close $125.70 Range $113.05 - $142.00

Q4 2023

Shares 720,393 Value ($000) $89,394 Avg Close $102.16 Range $74.75 - $126.37

Q3 2023

Shares 1,190,804 Value ($000) $111,102 Avg Close $112.73 Range $85.31 - $139.55

Q2 2023

Shares 1,640,594 Value ($000) $210,833 Avg Close $120.95 Range $110.90 - $134.14

Q1 2023

Shares 2,956,443 Value ($000) $343,480 Avg Close $111.94 Range $102.50 - $123.14

Q4 2022

Shares 979,856 Value ($000) $110,959 Avg Close $109.79 Range $81.06 - $125.55

Q3 2022

Shares 40,947 Value ($000) $3,298 Avg Close $84.70 Range $73.93 - $94.60

Q2 2022

Shares 119,525 Value ($000) $8,909 Avg Close $91.26 Range $66.89 - $134.76

Q4 2021

Shares 53,318 Value ($000) $28,628 Avg Close $143.69 Range $127.62 - $164.86

Q1 2021

Shares 18,862 Value ($000) $6,778 Avg Close $93.87 Range $84.28 - $105.85

Q4 2020

Shares 2,008 Value ($000) $742 Avg Close $89.29 Range $76.41 - $105.00

Q1 2020

Shares 609 Value ($000) $164 Avg Close $62.23 Range $45.52 - $76.68

Q4 2018

Shares 116,823 Value ($000) $13,995 Avg Close $31.72 Range $26.26 - $38.03

Q2 2016

Shares 24,917 Value ($000) $1,977 Avg Close $17.03 Range $15.02 - $20.31

Q4 2015

Shares 185,833 Value ($000) $15,220 Avg Close $20.81 Range $17.57 - $22.36

Q3 2015

Shares 194,099 Value ($000) $16,665 Avg Close $22.31 Range $19.11 - $25.82

Q2 2015

Shares 66,409 Value ($000) $5,311 Avg Close $17.56 Range $15.20 - $20.14

Q1 2015

Shares 405,345 Value ($000) $25,269 Avg Close $15.11 Range $13.32 - $16.16

Q4 2014

Shares 211,766 Value ($000) $11,658 Avg Close $12.24 Range $9.69 - $14.58

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	192,079	$12,748	$64.65	$54.11 - $72.08
Q3 2025	1,709,315	$115,020	$79.14	$65.18 - $89.98
Q2 2025	3,822,085	$333,630	$78.38	$57.52 - $88.32
Q1 2025	1,059,581	$72,359	$81.60	$66.25 - $93.25
Q4 2024	539,295	$41,941	$74.04	$64.76 - $82.26
Q3 2024	264,000	$17,699	$82.12	$62.34 - $117.19
Q2 2024	351,305	$39,831	$126.43	$108.71 - $141.99
Q1 2024	264,000	$36,617	$125.70	$113.05 - $142.00
Q4 2023	720,393	$89,394	$102.16	$74.75 - $126.37
Q3 2023	1,190,804	$111,102	$112.73	$85.31 - $139.55
Q2 2023	1,640,594	$210,833	$120.95	$110.90 - $134.14
Q1 2023	2,956,443	$343,480	$111.94	$102.50 - $123.14
Q4 2022	979,856	$110,959	$109.79	$81.06 - $125.55
Q3 2022	40,947	$3,298	$84.70	$73.93 - $94.60
Q2 2022	119,525	$8,909	$91.26	$66.89 - $134.76
Q4 2021	53,318	$28,628	$143.69	$127.62 - $164.86
Q1 2021	18,862	$6,778	$93.87	$84.28 - $105.85
Q4 2020	2,008	$742	$89.29	$76.41 - $105.00
Q1 2020	609	$164	$62.23	$45.52 - $76.68
Q4 2018	116,823	$13,995	$31.72	$26.26 - $38.03
Q2 2016	24,917	$1,977	$17.03	$15.02 - $20.31
Q4 2015	185,833	$15,220	$20.81	$17.57 - $22.36
Q3 2015	194,099	$16,665	$22.31	$19.11 - $25.82
Q2 2015	66,409	$5,311	$17.56	$15.20 - $20.14
Q1 2015	405,345	$25,269	$15.11	$13.32 - $16.16
Q4 2014	211,766	$11,658	$12.24	$9.69 - $14.58