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Trade Date*
Filing Date*
Insider Name
Buy/Sell
Company Name
Ticker
Price*
Amount
Shares Change
Mar 03, 2025
Mar 04, 2025
Blackford Quentin S.
Pres
CEO
Sell
Irhythm Technologies, Inc.
IRTC
$108.77
$885,932
-3.76%
Feb 26, 2025
Feb 27, 2025
Blackford Quentin S.
Pres
CEO
Sell
Irhythm Technologies, Inc.
IRTC
$112.13
$2M
-9.31%
Nov 04, 2024
Nov 05, 2024
Blackford Quentin S.
Pres
CEO
Sell
Irhythm Technologies, Inc.
IRTC
$77.41
$1M
-9.17%
Mar 07, 2024
Mar 09, 2024
Blackford Quentin S.
Dir
Buy
Alphatec Holdings, Inc.
ATEC
$12.83
$256,600
+3.37%
Mar 04, 2024
Mar 05, 2024
Blackford Quentin S.
Pres
CEO
Sell
Irhythm Technologies, Inc.
IRTC
$111.14
$469,122
-2.34%
Feb 29, 2024
Mar 02, 2024
Blackford Quentin S.
Pres
CEO
Sell
Irhythm Technologies, Inc.
IRTC
$121.96
$3M
-12.07%
Jun 06, 2023
Dec 07, 2023
Blackford Quentin S.
Pres
CEO
Buy
Irhythm Technologies, Inc.
IRTC
$102.27
$997,644
+7.06%
Nov 02, 2022
Nov 04, 2022
Blackford Quentin S.
Pres
CEO
Sell
Irhythm Technologies, Inc.
IRTC
$122.4
$2M
-12.45%
Sep 08, 2021
Sep 10, 2021
Blackford Quentin S.
COO
Sell
Dexcom Inc
DXCM
$547.62
$10M
-49.19%
May 28, 2021
Jun 02, 2021
Blackford Quentin S.
COO
Sell
Dexcom Inc
DXCM
$375
$3M
-15.99%
Mar 10, 2021
Mar 12, 2021
Blackford Quentin S.
COO
CFO
Sell
Dexcom Inc
DXCM
$362.22
$2M
-12.60%
Sep 09, 2020
Sep 11, 2020
Blackford Quentin S.
COO
CFO
Sell
Dexcom Inc
DXCM
$399.41
$10M
-36.24%
Aug 09, 2019
Jun 05, 2020
Blackford Quentin S.
Dir
Buy
Axogen, Inc.
AXGN
$14.01
$217,673
+50.00%
Mar 11, 2020
Mar 14, 2020
Blackford Quentin S.
COO
CFO
Sell
Dexcom Inc
DXCM
$248.98
$3M
-15.36%
Mar 09, 2020
Mar 11, 2020
Blackford Quentin S.
COO
CFO
Sell
Dexcom Inc
DXCM
$261
$232,551
-1.08%
Sep 10, 2019
Sep 12, 2019
Blackford Quentin S.
EVP CFO
Sell
Dexcom Inc
DXCM
$141.25
$1M
-12.89%
Sep 09, 2019
Sep 12, 2019
Blackford Quentin S.
EVP CFO
Sell
Dexcom Inc
DXCM
$149.86
$2M
-12.74%
Aug 09, 2019
Aug 13, 2019
Blackford Quentin S.
Dir
Buy
Axogen, Inc.
AXGN
$14.01
$217,673
+28.24%
May 29, 2019
May 30, 2019
Blackford Quentin S.
EVP CFO
Sell
Dexcom Inc
DXCM
$118.95
$1M
-8.82%
Mar 12, 2019
Mar 13, 2019
Blackford Quentin S.
EVP CFO
Sell
Dexcom Inc
DXCM
$142.79
$765,081
-5.06%
Sep 11, 2018
Sep 14, 2018
Blackford Quentin S.
EVP
CFO
PFO
PAO
Sell
Dexcom Inc
DXCM
$147.04
$1M
-8.83%
Sep 10, 2018
Sep 13, 2018
Blackford Quentin S.
EVP
CFO
PFO
PAO
Sell
Dexcom Inc
DXCM
$143.76
$1M
-6.96%
Dec 07, 2015
Dec 08, 2015
Blackford Quentin S.
CFO
CAO
Sell
Nuvasive Inc
NUVA
$51.1
$766,500
-85.23%
Oct 03, 2014
Apr 08, 2015
Blackford Quentin S.
CFO
CAO
Sell
Nuvasive Inc
NUVA
$36.3
$181,513
-27.93%
Nov 19, 2014
Nov 20, 2014
Blackford Quentin S.
CFO
CAO
Sell
Nuvasive Inc
NUVA
$43.41
$334,178
-90.59%