Guinan Mark (CIK 0001505998)

Latest company ownership

Shares held
98,981
Last filed at
Mar 9, 2022
Confidence Score
50.0
2025Q4
Confidence Score History
2015Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 7, 2022 Mar 9, 2022 QUEST DIAGNOSTICS INC CFO Sell 100.0 +10,305 11.62% $1.4M
Feb 23, 2022 Feb 25, 2022 QUEST DIAGNOSTICS INC CFO Sell 40.0 -2,367 -2.67% $308K
Mar 9, 2021 Mar 11, 2021 QUEST DIAGNOSTICS INC CFO Sell 97.5 +10,919 14.02% $739K
Feb 23, 2021 Feb 25, 2021 QUEST DIAGNOSTICS INC CFO Sell 42.5 -1,371 -1.73% $166.1K
Dec 24, 2020 Dec 28, 2020 QUEST DIAGNOSTICS INC CFO Sell 3.8 -81,756 -52.63% $9.8M
Jun 8, 2020 Jun 10, 2020 QUEST DIAGNOSTICS INC CFO Sell 3.8 -72,596 -49.66% $8.5M
Mar 10, 2020 Mar 12, 2020 QUEST DIAGNOSTICS INC CFO Sell 92.5 +3,823 5.48% $412K
Feb 26, 2020 Feb 27, 2020 QUEST DIAGNOSTICS INC CFO Sell 42.5 -1,195 -1.68% $134.9K
Feb 24, 2020 Feb 26, 2020 QUEST DIAGNOSTICS INC CFO Sell 42.5 -1,218 -1.69% $137.3K
Jun 13, 2019 Jun 17, 2019 QUEST DIAGNOSTICS INC CFO Sell 16.3 -73,005 -52.51% $7.3M
Mar 1, 2019 Mar 5, 2019 QUEST DIAGNOSTICS INC CFO Sell 92.5 +5,448 8.99% $459.3K
Feb 26, 2019 Feb 28, 2019 QUEST DIAGNOSTICS INC CFO Sell 42.5 -1,556 -2.50% $136.7K
Feb 25, 2019 Feb 27, 2019 QUEST DIAGNOSTICS INC CFO Sell 42.5 -660 -1.05% $58.2K
Feb 22, 2019 Feb 25, 2019 QUEST DIAGNOSTICS INC CFO Sell 45.0 -610 -0.96% $53.9K
May 25, 2018 May 29, 2018 QUEST DIAGNOSTICS INC CFO Sell 3.8 -61,533 -51.39% $6.5M
Mar 2, 2018 Mar 6, 2018 QUEST DIAGNOSTICS INC CFO Sell 97.5 +6,666 12.94% $653.6K
Feb 27, 2018 Mar 6, 2018 QUEST DIAGNOSTICS INC CFO Sell 42.5 -779 -1.49% $79K
Feb 23, 2018 Mar 6, 2018 QUEST DIAGNOSTICS INC CFO Sell 42.5 -2,046 -3.76% $208.3K
Feb 27, 2018 Mar 1, 2018 QUEST DIAGNOSTICS INC CFO Sell 42.5 -585 -1.11% $59.3K
Feb 23, 2018 Feb 27, 2018 QUEST DIAGNOSTICS INC CFO Sell 42.5 -1,684 -3.10% $171.6K
Mar 2, 2017 Mar 3, 2017 QUEST DIAGNOSTICS INC CFO Sell 97.5 +6,889 16.01% $728.1K
Feb 28, 2017 Mar 2, 2017 QUEST DIAGNOSTICS INC CFO Sell 42.5 -625 -1.43% $60.3K
Feb 24, 2017 Feb 28, 2017 QUEST DIAGNOSTICS INC CFO Sell 42.5 -585 -1.32% $56K
Feb 13, 2017 Feb 15, 2017 QUEST DIAGNOSTICS INC CFO Sell 42.5 -1,451 -3.55% $136.2K
Aug 22, 2016 Aug 24, 2016 QUEST DIAGNOSTICS INC CFO Sell 40.0 -8,440 -17.11% $713.8K
Mar 1, 2016 Mar 3, 2016 QUEST DIAGNOSTICS INC CFO Sell 87.5 +1,625 3.41% $64.7K
Feb 25, 2016 Feb 29, 2016 QUEST DIAGNOSTICS INC CFO Sell 91.3 +5,765 13.75% $36.5K
Feb 16, 2016 Feb 18, 2016 QUEST DIAGNOSTICS INC CFO Sell 46.3 -739 -1.73% $45.8K
Aug 21, 2015 Aug 24, 2015 QUEST DIAGNOSTICS INC CFO Sell 40.0 -3,462 -7.50% $253.7K