Olson Charles W (CIK 0001286125)

Latest company ownership

SRDX - SURMODICS INC
Role: SVP, Medical Device Coatings
Shares held
33,680
Last filed at
Nov 19, 2025
Confidence Score
49.8
2025Q4
Confidence Score History
2012Q2 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 4, 2024 Dec 6, 2024 SURMODICS INC SVP, Medical Device Coatings Sell 26.3 -959 -1.80% ✗ $38.3K
Nov 30, 2024 Dec 3, 2024 SURMODICS INC SVP, Medical Device Coatings Sell 22.5 -1,534 -2.80% ✗ $60.5K
Aug 16, 2024 Aug 20, 2024 SURMODICS INC SVP, Medical Device Coatings Sell 20.0 -16,727 -23.40% ✗ $670.1K
Nov 30, 2023 Dec 4, 2023 SURMODICS INC SVP, Medical Device Coatings Sell 22.5 -2,185 -4.47% ✗ $71.7K
Nov 15, 2023 Nov 17, 2023 SURMODICS INC SVP, Medical Device Coatings Sell 20.0 -10,803 -18.08% ✗ $365.4K
Nov 30, 2022 Dec 2, 2022 SURMODICS INC SVP, Medical Device Coatings Sell 86.3 +4,193 9.82% ✗ $48.5K
Nov 25, 2022 Nov 29, 2022 SURMODICS INC SVP, Medical Device Coatings Sell 26.3 -471 -1.09% ✗ $17K
Nov 30, 2021 Dec 2, 2021 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 86.3 +3,902 9.94% ✗ $28.6K
Nov 25, 2021 Nov 29, 2021 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 26.3 -820 -2.05% ✗ $38.5K
Aug 31, 2021 Sep 1, 2021 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 37.5 -1,292 -3.12% ✓ $77.2K
Apr 28, 2021 Apr 30, 2021 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 37.5 -1,508 -3.52% ✓ $90.1K
Apr 16, 2021 Apr 20, 2021 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 48.8 -648 -1.49% ✓ $38.7K
Mar 31, 2021 Apr 2, 2021 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 26.3 -4,759 -9.85% ✓ $270.1K
Feb 26, 2021 Mar 2, 2021 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 20.0 -9,139 -15.91% ✗ $476.6K
Nov 25, 2020 Nov 30, 2020 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 22.5 -1,416 -3.45% ✗ $54.6K
Nov 27, 2019 Dec 2, 2019 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 22.5 -1,358 -3.20% ✗ $55.6K
Nov 25, 2019 Nov 27, 2019 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 95.0 +7,366 21.02% ✗ $150.4K
Sep 26, 2019 Sep 30, 2019 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 26.3 -1,109 -3.07% ✗ $49.9K
Nov 30, 2018 Dec 4, 2018 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 26.3 -413 -1.13% ✗ $25K
Nov 27, 2018 Nov 29, 2018 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 97.5 +6,437 21.37% ✗ $260.8K
Sep 26, 2018 Sep 28, 2018 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 22.5 -1,109 -3.55% ✗ $81.6K
Jun 11, 2018 Jun 13, 2018 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 5.0 -19,484 -38.42% ✓ $1.1M
Jun 4, 2018 Jun 6, 2018 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 40.0 -7,259 -16.60% ✗ $374.2K
May 24, 2018 May 29, 2018 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 7.5 -20,000 -37.72% ✓ $970.8K
Mar 27, 2018 Mar 29, 2018 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 17.5 -33,425 -25.23% ✗ $1.3M
Nov 28, 2017 Nov 30, 2017 SURMODICS INC Senior VP of Bus Dev, Med Dev Sell 95.0 +6,858 21.27% ✗ $118.9K
Sep 15, 2017 Sep 19, 2017 SURMODICS INC Senior VP & GM, Med Dev Sell 45.0 -801 -2.84% ✓ $22.3K
Dec 22, 2016 Dec 27, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 41.3 -1,201 -4.09% ✓ $31.2K
Dec 8, 2016 Dec 12, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 25.0 -3,699 -11.18% ✓ $96.2K
Nov 30, 2016 Dec 2, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 95.0 +5,241 18.82% ✗ $56.4K
Nov 23, 2016 Nov 28, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 48.8 -500 -1.76% ✓ $13K
Aug 16, 2016 Aug 18, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 20.0 -9,936 -25.96% ✗ $287.9K
Aug 12, 2016 Aug 16, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 40.0 -17,151 -30.94% ✗ $484.5K
Aug 9, 2016 Aug 11, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 42.5 -5,173 -17.47% ✗ $149.4K
Aug 1, 2016 Aug 3, 2016 SURMODICS INC Senior VP & GM, Med Dev Sell 40.0 -12,500 -34.41% ✗ $338.5K
Dec 17, 2015 Dec 21, 2015 SURMODICS INC Senior VP & GM, Med Dev Sell 91.3 +3,641 18.03% ✗ $37.3K
Aug 5, 2015 Aug 7, 2015 SURMODICS INC Senior VP & GM, Med Dev Sell 7.5 -10,000 -33.12% ✓ $261.6K
Dec 8, 2014 Dec 31, 2014 SURMODICS INC Senior VP & GM, Med Dev Sell 25.0 -5,083 -14.41% ✓ $111.7K
Dec 2, 2014 Dec 4, 2014 SURMODICS INC Senior VP & GM, Med Dev Sell 95.0 +9,454 36.62% ✗ $100.6K
Nov 18, 2013 Nov 20, 2013 SURMODICS INC Senior VP & GM, Med Dev Sell 95.0 +14,383 125.77% ✗ $164.3K
Mar 5, 2013 Mar 7, 2013 SURMODICS INC Senior VP & GM, Med Dev Sell 41.3 -380 -3.22% ✓ $10K
Jun 28, 2012 Jul 2, 2012 SURMODICS INC Senior VP & GM, Med Dev Sell 46.3 -1,955 -14.20% ✗ $32.5K