DEXCOM INC

Ticker: DXCM CUSIP: 252131107 Class: EQTY

Yorktown Management & Research Co Inc's Holding History (CIK: 0001313559)

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

Q4 2021

Shares 580 Value ($000) $311 Avg Close $143.69 Range $127.62 - $164.86

Q3 2021

Shares 580 Value ($000) $317 Avg Close $126.11 Range $105.19 - $144.75

Q2 2021

Shares 580 Value ($000) $248 Avg Close $96.03 Range $79.61 - $109.91

Q1 2014

Shares 7,100 Value ($000) $294 Avg Close $10.34 Range $8.53 - $12.46

Q4 2013

Shares 7,100 Value ($000) $251 Avg Close $7.91 Range $6.67 - $8.99

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	580	$311	$143.69	$127.62 - $164.86
Q3 2021	580	$317	$126.11	$105.19 - $144.75
Q2 2021	580	$248	$96.03	$79.61 - $109.91
Q1 2014	7,100	$294	$10.34	$8.53 - $12.46
Q4 2013	7,100	$251	$7.91	$6.67 - $8.99