de Geus Aart (CIK 0001249802)

Latest company ownership

Role: Chair
Shares held
200,000
Last filed at
May 23, 2017
Confidence Score
45.4
2025Q4
Confidence Score History
2014Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 8, 2025 Dec 9, 2025 SYNOPSYS INC Chair Sell 45.0 -1,361 -0.20% $633.9K
Aug 29, 2025 Sep 3, 2025 SYNOPSYS INC Chair Buy 47.5 +26 0.01% $9.8K
Mar 15, 2025 Mar 18, 2025 SYNOPSYS INC Chair Sell 45.0 -875 -0.20% $390.5K
Mar 6, 2025 Mar 10, 2025 SYNOPSYS INC Chair Sell 31.3 -15,705 -3.45% $7M
Feb 28, 2025 Mar 4, 2025 SYNOPSYS INC Chair Buy 47.5 +25 0.01% $9.7K
Dec 6, 2024 Dec 10, 2024 SYNOPSYS INC Chair Sell 37.5 -9,487 -1.05% $4.9M
Aug 30, 2024 Sep 4, 2024 SYNOPSYS INC Chair Buy 47.5 +22 0.01% $9.7K
Jul 15, 2024 Jul 17, 2024 SYNOPSYS INC Chair Sell 7.5 -187,044 -30.30% $306K
Jul 10, 2024 Jul 12, 2024 SYNOPSYS INC Chair Sell 35.0 -13,236 -2.40% $8.2M
Jul 5, 2024 Jul 9, 2024 SYNOPSYS INC Chair Sell 25.0 -33,201 -5.82% $20.6M
Jul 2, 2024 Jul 5, 2024 SYNOPSYS INC Chair Sell 40.0 -7,129 -1.31% $4.4M
Jun 28, 2024 Jul 2, 2024 SYNOPSYS INC Chair Sell 30.0 -17,078 -3.08% $10.3M
Jun 26, 2024 Jun 28, 2024 SYNOPSYS INC Chair Sell 35.0 -11,057 -2.02% $6.7M
Jun 24, 2024 Jun 26, 2024 SYNOPSYS INC Chair Sell 40.0 -6,747 -1.24% $4.1M
Mar 15, 2024 Mar 19, 2024 SYNOPSYS INC Chair Sell 45.0 -610 -0.14% $335.5K
Feb 29, 2024 Mar 4, 2024 SYNOPSYS INC Chair Buy 47.5 +38 0.01% $9.9K
Dec 12, 2023 Dec 14, 2023 SYNOPSYS INC CEO Sell 87.5 +5,752 1.36% $3.2M
Dec 8, 2023 Dec 12, 2023 SYNOPSYS INC CEO Sell 40.0 -5,490 -0.76% $2.9M
Aug 31, 2023 Sep 5, 2023 SYNOPSYS INC CEO Buy 47.5 +38 0.01% $9.9K
Jun 21, 2023 Jun 22, 2023 SYNOPSYS INC CEO Sell 21.3 -40,839 -8.91% $17.5M
Jun 13, 2023 Jun 15, 2023 SYNOPSYS INC CEO Sell 21.3 -40,000 -8.74% $17.9M
Jun 6, 2023 Jun 8, 2023 SYNOPSYS INC CEO Sell 21.3 -40,000 -8.74% $17.8M
Feb 28, 2023 Mar 2, 2023 SYNOPSYS INC CEO Buy 47.5 +38 0.01% $9.9K
Dec 8, 2022 Dec 12, 2022 SYNOPSYS INC CEO Sell 42.5 -3,955 -0.41% $4M
Aug 31, 2022 Sep 2, 2022 SYNOPSYS INC CEO Buy 47.5 +38 0.01% $9.9K
Feb 28, 2022 Mar 1, 2022 SYNOPSYS INC CEO Buy 47.5 +37 0.01% $9.8K
Dec 10, 2021 Dec 14, 2021 SYNOPSYS INC CEO Sell 2.5 -226,958 -31.87% $81.7M
Dec 9, 2021 Dec 13, 2021 SYNOPSYS INC CEO Sell 70.0 +2,303 0.37% $2.1M
Dec 8, 2021 Dec 10, 2021 SYNOPSYS INC CEO Sell 37.5 -9,180 -1.33% $3.3M
Aug 31, 2021 Sep 2, 2021 SYNOPSYS INC CEO Buy 47.5 +84 0.02% $9.9K
Mar 26, 2021 Mar 29, 2021 SYNOPSYS INC CEO Sell 26.3 -28,311 -5.86% $6.8M
Mar 2, 2021 Mar 4, 2021 SYNOPSYS INC CEO Sell 7.5 -158,696 -23.37% $39.4M
Feb 26, 2021 Mar 1, 2021 SYNOPSYS INC CEO Buy 27.5 -24,916 -5.19% $9.9K
Dec 10, 2020 Dec 14, 2020 SYNOPSYS INC CEO Sell 70.0 +2,057 0.34% $1.4M
Dec 8, 2020 Dec 9, 2020 SYNOPSYS INC CEO Sell 37.5 -9,954 -1.68% $2.4M
Aug 31, 2020 Sep 2, 2020 SYNOPSYS INC CEO Buy 47.5 +84 0.02% $9.9K
Feb 28, 2020 Mar 3, 2020 SYNOPSYS INC CEO Buy 47.5 +63 0.01% $7.4K
Feb 21, 2020 Feb 25, 2020 SYNOPSYS INC CEO Sell 2.5 -208,924 -31.08% $25.3M
Dec 12, 2019 Dec 16, 2019 SYNOPSYS INC CEO Sell 42.5 -3,073 -0.61% $417.6K
Dec 8, 2019 Dec 10, 2019 SYNOPSYS INC CEO Sell 37.5 -11,677 -1.97% $1.6M
Aug 30, 2019 Sep 3, 2019 SYNOPSYS INC CEO Buy 47.5 +109 0.02% $7.5K
May 24, 2019 May 28, 2019 SYNOPSYS INC CEO Sell 7.5 -156,100 -24.23% $18.3M
Feb 28, 2019 Mar 1, 2019 SYNOPSYS INC CEO Buy 47.5 +109 0.02% $7.5K
Feb 22, 2019 Feb 26, 2019 SYNOPSYS INC CEO Sell 7.5 -160,000 -23.95% $16.3M
Dec 12, 2018 Dec 14, 2018 SYNOPSYS INC CEO Sell 42.5 -3,082 -0.60% $276.6K
Dec 8, 2018 Dec 11, 2018 SYNOPSYS INC CEO Sell 22.5 -60,539 -9.87% $5.4M
Aug 31, 2018 Sep 4, 2018 SYNOPSYS INC CEO Buy 47.5 +109 0.02% $7.5K
Feb 28, 2018 Mar 2, 2018 SYNOPSYS INC CEO Buy 47.5 +109 0.02% $7.5K
Dec 8, 2017 Dec 12, 2017 SYNOPSYS INC CEO Sell 37.5 -17,443 -3.02% $1.6M
Aug 31, 2017 Sep 5, 2017 SYNOPSYS INC CEO Buy 47.5 +193 0.04% $7.5K
May 19, 2017 May 23, 2017 SYNOPSYS INC CEO Sell 2.5 -264,000 -32.38% $18.7M
Feb 28, 2017 Mar 2, 2017 SYNOPSYS INC CEO Buy 47.5 +193 0.03% $7.5K
Dec 15, 2016 Dec 19, 2016 SYNOPSYS INC CEO Sell 42.5 -5,048 -0.81% $304.7K
Dec 8, 2016 Dec 12, 2016 SYNOPSYS INC CEO Sell 40.0 -15,350 -2.45% $910.4K
Aug 31, 2016 Sep 2, 2016 SYNOPSYS INC CEO Buy 47.5 +193 0.03% $7.5K
Aug 19, 2016 Aug 22, 2016 SYNOPSYS INC CEO Sell 2.5 -306,000 -33.50% $17.9M
Feb 29, 2016 Mar 1, 2016 SYNOPSYS INC CEO Buy 47.5 +197 0.03% $7.5K
Dec 15, 2015 Dec 17, 2015 SYNOPSYS INC CEO Sell 45.0 -3,844 -0.54% $173.9K
Dec 8, 2015 Dec 10, 2015 SYNOPSYS INC CEO Sell 40.0 -20,208 -2.93% $931.2K
Aug 31, 2015 Sep 1, 2015 SYNOPSYS INC CEO Buy 47.5 +248 0.04% $7.5K
May 27, 2015 May 28, 2015 SYNOPSYS INC CEO Sell 32.5 -24,100 -3.33% $1.2M
May 22, 2015 May 27, 2015 SYNOPSYS INC CEO Sell 8.8 -183,400 -20.20% $9M
Feb 27, 2015 Mar 3, 2015 SYNOPSYS INC CEO Buy 47.5 +248 0.03% $7.5K
Dec 12, 2014 Dec 16, 2014 SYNOPSYS INC CEO Sell 45.0 -4,553 -0.63% $193.2K
Dec 8, 2014 Dec 9, 2014 SYNOPSYS INC CEO Sell 40.0 -21,018 -3.02% $919.3K
Dec 5, 2014 Dec 8, 2014 SYNOPSYS INC CEO Sell 32.5 -23,500 -3.27% $1M
Aug 29, 2014 Sep 2, 2014 SYNOPSYS INC CEO Buy 47.5 +248 0.03% $7.5K