DEXCOM INC

Ticker: DXCM CUSIP: 252131107 Class: EQTY

BAMCO INC /NY/'s Holding History (CIK: 0001017918)

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

Q4 2025

Shares 257,500 Value ($000) $17,090 Avg Close $64.65 Range $54.11 - $72.08

Q3 2025

Shares 272,500 Value ($000) $18,337 Avg Close $79.14 Range $65.18 - $89.98

Q2 2025

Shares 332,500 Value ($000) $29,024 Avg Close $78.38 Range $57.52 - $88.32

Q1 2025

Shares 432,500 Value ($000) $29,535 Avg Close $81.60 Range $66.25 - $93.25

Q4 2024

Shares 432,500 Value ($000) $33,636 Avg Close $74.04 Range $64.76 - $82.26

Q3 2024

Shares 564,854 Value ($000) $37,868 Avg Close $82.12 Range $62.34 - $117.19

Q2 2024

Shares 966,472 Value ($000) $109,579 Avg Close $126.43 Range $108.71 - $141.99

Q1 2024

Shares 967,983 Value ($000) $134,259 Avg Close $125.70 Range $113.05 - $142.00

Q4 2023

Shares 997,708 Value ($000) $123,806 Avg Close $102.16 Range $74.75 - $126.37

Q3 2023

Shares 1,319,066 Value ($000) $123,069 Avg Close $112.73 Range $85.31 - $139.55

Q2 2023

Shares 1,426,990 Value ($000) $183,382 Avg Close $120.95 Range $110.90 - $134.14

Q1 2023

Shares 1,437,140 Value ($000) $166,967 Avg Close $111.94 Range $102.50 - $123.14

Q4 2022

Shares 1,355,587 Value ($000) $153,507 Avg Close $109.79 Range $81.06 - $125.55

Q3 2022

Shares 1,470,746 Value ($000) $118,454 Avg Close $84.70 Range $73.93 - $94.60

Q2 2022

Shares 1,470,074 Value ($000) $109,565 Avg Close $91.26 Range $66.89 - $134.76

Q1 2022

Shares 369,969 Value ($000) $189,276 Avg Close $109.39 Range $91.43 - $133.20

Q4 2021

Shares 380,888 Value ($000) $204,518 Avg Close $143.69 Range $127.62 - $164.86

Q3 2021

Shares 399,246 Value ($000) $218,332 Avg Close $126.11 Range $105.19 - $144.75

Q2 2021

Shares 396,226 Value ($000) $169,189 Avg Close $96.03 Range $79.61 - $109.91

Q1 2021

Shares 415,537 Value ($000) $149,340 Avg Close $93.87 Range $84.28 - $105.85

Q4 2020

Shares 416,529 Value ($000) $153,999 Avg Close $89.29 Range $76.41 - $105.00

Q3 2020

Shares 416,596 Value ($000) $171,733 Avg Close $104.48 Range $93.91 - $114.06

Q2 2020

Shares 471,676 Value ($000) $191,217 Avg Close $89.45 Range $62.50 - $107.15

Q1 2020

Shares 499,844 Value ($000) $134,593 Avg Close $62.23 Range $45.52 - $76.68

Q4 2019

Shares 508,384 Value ($000) $111,204 Avg Close $47.43 Range $36.31 - $58.00

Q3 2019

Shares 507,913 Value ($000) $75,801 Avg Close $38.85 Range $34.57 - $44.61

Q2 2019

Shares 500,244 Value ($000) $74,957 Avg Close $31.43 Range $26.86 - $39.38

Q1 2019

Shares 413,897 Value ($000) $49,295 Avg Close $35.14 Range $27.58 - $39.04

Q4 2018

Shares 301,981 Value ($000) $36,177 Avg Close $31.72 Range $26.26 - $38.03

Q3 2018

Shares 301,661 Value ($000) $43,150 Avg Close $31.00 Range $23.08 - $37.14

Q2 2018

Shares 301,000 Value ($000) $28,589 Avg Close $21.20 Range $17.38 - $25.52

Q1 2018

Shares 301,000 Value ($000) $22,322 Avg Close $14.79 Range $12.76 - $18.82

Q4 2017

Shares 301,000 Value ($000) $17,274 Avg Close $13.00 Range $10.94 - $15.59

Q3 2017

Shares 301,000 Value ($000) $14,726 Avg Close $17.68 Range $10.65 - $19.73

Q2 2017

Shares 680,810 Value ($000) $49,801 Avg Close $18.47 Range $16.54 - $21.33

Q1 2017

Shares 789,027 Value ($000) $66,854 Avg Close $19.52 Range $14.42 - $22.20

Q4 2016

Shares 839,027 Value ($000) $50,090 Avg Close $17.71 Range $14.84 - $21.95

Q3 2016

Shares 851,477 Value ($000) $74,640 Avg Close $22.24 Range $19.05 - $24.09

Q2 2016

Shares 901,677 Value ($000) $71,530 Avg Close $17.03 Range $15.02 - $20.31

Q1 2016

Shares 1,092,441 Value ($000) $74,188 Avg Close $16.70 Range $11.98 - $20.97

Q4 2015

Shares 1,090,473 Value ($000) $89,310 Avg Close $20.81 Range $17.57 - $22.36

Q3 2015

Shares 1,330,742 Value ($000) $114,258 Avg Close $22.31 Range $19.11 - $25.82

Q2 2015

Shares 1,337,607 Value ($000) $106,982 Avg Close $17.56 Range $15.20 - $20.14

Q1 2015

Shares 1,338,407 Value ($000) $83,436 Avg Close $15.11 Range $13.32 - $16.16

Q4 2014

Shares 1,340,731 Value ($000) $73,807 Avg Close $12.24 Range $9.69 - $14.58

Q3 2014

Shares 1,345,322 Value ($000) $53,799 Avg Close $10.22 Range $8.67 - $11.59

Q2 2014

Shares 1,348,572 Value ($000) $53,484 Avg Close $8.86 Range $7.02 - $10.62

Q1 2014

Shares 1,354,112 Value ($000) $56,006 Avg Close $10.34 Range $8.53 - $12.46

Q4 2013

Shares 1,357,357 Value ($000) $48,064 Avg Close $7.91 Range $6.67 - $8.99

Q3 2013

Shares 1,369,154 Value ($000) $38,651 Avg Close $6.33 Range $5.44 - $7.31

Q2 2013

Shares 1,387,037 Value ($000) $31,139 Avg Close $4.79 Range $3.76 - $5.74

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	257,500	$17,090	$64.65	$54.11 - $72.08
Q3 2025	272,500	$18,337	$79.14	$65.18 - $89.98
Q2 2025	332,500	$29,024	$78.38	$57.52 - $88.32
Q1 2025	432,500	$29,535	$81.60	$66.25 - $93.25
Q4 2024	432,500	$33,636	$74.04	$64.76 - $82.26
Q3 2024	564,854	$37,868	$82.12	$62.34 - $117.19
Q2 2024	966,472	$109,579	$126.43	$108.71 - $141.99
Q1 2024	967,983	$134,259	$125.70	$113.05 - $142.00
Q4 2023	997,708	$123,806	$102.16	$74.75 - $126.37
Q3 2023	1,319,066	$123,069	$112.73	$85.31 - $139.55
Q2 2023	1,426,990	$183,382	$120.95	$110.90 - $134.14
Q1 2023	1,437,140	$166,967	$111.94	$102.50 - $123.14
Q4 2022	1,355,587	$153,507	$109.79	$81.06 - $125.55
Q3 2022	1,470,746	$118,454	$84.70	$73.93 - $94.60
Q2 2022	1,470,074	$109,565	$91.26	$66.89 - $134.76
Q1 2022	369,969	$189,276	$109.39	$91.43 - $133.20
Q4 2021	380,888	$204,518	$143.69	$127.62 - $164.86
Q3 2021	399,246	$218,332	$126.11	$105.19 - $144.75
Q2 2021	396,226	$169,189	$96.03	$79.61 - $109.91
Q1 2021	415,537	$149,340	$93.87	$84.28 - $105.85
Q4 2020	416,529	$153,999	$89.29	$76.41 - $105.00
Q3 2020	416,596	$171,733	$104.48	$93.91 - $114.06
Q2 2020	471,676	$191,217	$89.45	$62.50 - $107.15
Q1 2020	499,844	$134,593	$62.23	$45.52 - $76.68
Q4 2019	508,384	$111,204	$47.43	$36.31 - $58.00
Q3 2019	507,913	$75,801	$38.85	$34.57 - $44.61
Q2 2019	500,244	$74,957	$31.43	$26.86 - $39.38
Q1 2019	413,897	$49,295	$35.14	$27.58 - $39.04
Q4 2018	301,981	$36,177	$31.72	$26.26 - $38.03
Q3 2018	301,661	$43,150	$31.00	$23.08 - $37.14
Q2 2018	301,000	$28,589	$21.20	$17.38 - $25.52
Q1 2018	301,000	$22,322	$14.79	$12.76 - $18.82
Q4 2017	301,000	$17,274	$13.00	$10.94 - $15.59
Q3 2017	301,000	$14,726	$17.68	$10.65 - $19.73
Q2 2017	680,810	$49,801	$18.47	$16.54 - $21.33
Q1 2017	789,027	$66,854	$19.52	$14.42 - $22.20
Q4 2016	839,027	$50,090	$17.71	$14.84 - $21.95
Q3 2016	851,477	$74,640	$22.24	$19.05 - $24.09
Q2 2016	901,677	$71,530	$17.03	$15.02 - $20.31
Q1 2016	1,092,441	$74,188	$16.70	$11.98 - $20.97
Q4 2015	1,090,473	$89,310	$20.81	$17.57 - $22.36
Q3 2015	1,330,742	$114,258	$22.31	$19.11 - $25.82
Q2 2015	1,337,607	$106,982	$17.56	$15.20 - $20.14
Q1 2015	1,338,407	$83,436	$15.11	$13.32 - $16.16
Q4 2014	1,340,731	$73,807	$12.24	$9.69 - $14.58
Q3 2014	1,345,322	$53,799	$10.22	$8.67 - $11.59
Q2 2014	1,348,572	$53,484	$8.86	$7.02 - $10.62
Q1 2014	1,354,112	$56,006	$10.34	$8.53 - $12.46
Q4 2013	1,357,357	$48,064	$7.91	$6.67 - $8.99
Q3 2013	1,369,154	$38,651	$6.33	$5.44 - $7.31
Q2 2013	1,387,037	$31,139	$4.79	$3.76 - $5.74