Leiden Jeffrey M (CIK 0001242825)

Latest company ownership

Shares held
6,000
Last filed at
May 30, 2018
Confidence Score
50.0
2025Q4
Confidence Score History
2016Q3 2025Q4
Shares held
440
Last filed at
Nov 17, 2025
Confidence Score
12.7
2025Q4
Confidence Score History
2019Q2 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 3, 2025 Dec 5, 2025 VERTEX PHARMACEUTICALS INC / MA Chair Sell 2.5 -63,781 -72.28% ✓ $28.7M
Nov 13, 2025 Nov 17, 2025 VERTEX PHARMACEUTICALS INC / MA Chair Sell 2.5 -73,292 -33.86% ✓ $32.3M
Feb 14, 2025 Feb 19, 2025 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -6,066 -19.87% ✗ $2.8M
Feb 12, 2025 Feb 14, 2025 VERTEX PHARMACEUTICALS INC / MA Chair Sell 100.0 +4,684 18.12% ✗ $1.1M
Aug 30, 2024 Sep 4, 2024 VERTEX PHARMACEUTICALS INC / MA Chair Sell 5.0 -3,784 -26.61% ✓ $1.9M
Feb 20, 2024 Feb 21, 2024 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -4,118 -22.46% ✗ $1.7M
Feb 14, 2024 Feb 16, 2024 VERTEX PHARMACEUTICALS INC / MA Chair Sell 5.0 -9,011 -32.95% ✓ $3.8M
Feb 12, 2024 Feb 14, 2024 VERTEX PHARMACEUTICALS INC / MA Chair Sell 20.0 -3,393 -11.04% ✓ $1.4M
Feb 8, 2024 Feb 12, 2024 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -10,746 -25.90% ✗ $4.5M
Jan 8, 2024 Jan 10, 2024 VERTEX PHARMACEUTICALS INC / MA Chair Sell 5.0 -6,648 -69.90% ✓ $2.8M
Dec 13, 2023 Dec 15, 2023 VERTEX PHARMACEUTICALS INC / MA Chair Sell 3.8 -13,354 -58.40% ✓ $5.3M
Oct 16, 2023 Oct 18, 2023 VERTEX PHARMACEUTICALS INC / MA Chair Sell 5.0 -12,962 -36.18% ✓ $4.8M
May 5, 2023 May 9, 2023 VERTEX PHARMACEUTICALS INC / MA Chair Sell 30.0 -2,004 -5.30% ✓ $699.9K
May 2, 2023 May 4, 2023 VERTEX PHARMACEUTICALS INC / MA Chair Sell 10.0 -10,958 -22.46% ✓ $3.8M
Feb 24, 2023 Feb 28, 2023 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -13,730 -21.96% ✗ $4M
Feb 13, 2023 Feb 14, 2023 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -13,344 -17.59% ✗ $4M
Feb 1, 2023 Feb 3, 2023 VERTEX PHARMACEUTICALS INC / MA Chair Sell 100.0 +73,000 2549.77% ✗ $1.1M
Jul 25, 2022 Jul 27, 2022 VERTEX PHARMACEUTICALS INC / MA Chair Sell 2.5 -132,079 -97.88% ✓ $37.2M
Apr 13, 2022 Apr 14, 2022 VERTEX PHARMACEUTICALS INC / MA Chair Sell 15.0 -15,789 -17.47% ✓ $4.6M
Feb 24, 2022 Feb 28, 2022 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -12,141 -11.84% ✗ $2.8M
Feb 17, 2022 Feb 22, 2022 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -8,236 -7.44% ✗ $1.9M
Feb 1, 2022 Feb 3, 2022 VERTEX PHARMACEUTICALS INC / MA Chair Sell 100.0 +60,538 120.53% ✗ $1.5M
Feb 17, 2021 Feb 19, 2021 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -13,970 -21.80% ✗ $3M
Feb 10, 2021 Feb 12, 2021 VERTEX PHARMACEUTICALS INC / MA Chair Sell 17.5 -13,954 -17.88% ✗ $3M
Feb 3, 2021 Feb 5, 2021 VERTEX PHARMACEUTICALS INC / MA Chair Sell 100.0 +75,289 2736.79% ✗ $1.8M
Jun 30, 2020 Jul 2, 2020 VERTEX PHARMACEUTICALS INC / MA Chair Sell 3.8 -32,792 -92.39% ✓ $9.4M
May 12, 2020 May 14, 2020 VERTEX PHARMACEUTICALS INC / MA Chair Sell 2.5 -94,370 -72.71% ✓ $26.8M
May 7, 2020 May 8, 2020 VERTEX PHARMACEUTICALS INC / MA Chair Sell 2.5 -94,369 -69.58% ✓ $25.5M
May 5, 2020 May 7, 2020 VERTEX PHARMACEUTICALS INC / MA Chair Sell 2.5 -94,372 -66.71% ✓ $25.5M
Mar 31, 2020 Apr 2, 2020 VERTEX PHARMACEUTICALS INC / MA Chair Sell 16.3 -40,090 -43.10% ✗ $9.4M
Feb 24, 2020 Feb 26, 2020 VERTEX PHARMACEUTICALS INC / MA CEO Sell 15.0 -18,960 -16.93% ✓ $4.5M
Feb 17, 2020 Feb 19, 2020 VERTEX PHARMACEUTICALS INC / MA CEO Sell 13.8 -20,999 -15.79% ✓ $5.1M
Feb 10, 2020 Feb 12, 2020 VERTEX PHARMACEUTICALS INC / MA CEO Sell 2.5 -84,278 -38.79% ✓ $20.6M
Nov 19, 2019 Nov 21, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 2.5 -96,534 -47.48% ✓ $20.4M
Nov 15, 2019 Nov 19, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 36.3 -9,434 -2.17% ✓ $2M
Oct 31, 2019 Nov 4, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 7.5 -105,701 -24.87% ✓ $21.1M
Oct 22, 2019 Oct 24, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 2.5 -107,831 -33.61% ✓ $20.5M
Jun 18, 2019 Jun 20, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 3.8 -56,030 -34.43% ✓ $9.8M
May 24, 2019 May 28, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 2.5 -113,432 -51.52% ✓ $19.9M
May 6, 2019 May 8, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 18.8 -33,058 -13.44% ✓ $5.8M
May 1, 2019 May 3, 2019 VERTEX PHARMACEUTICALS INC / MA CEO Sell 32.5 -10,480 -4.69% ✓ $1.8M
May 29, 2018 May 30, 2018 QUEST DIAGNOSTICS INC Director Sell 22.5 -1,644 -21.51% ✗ $173.6K
Aug 4, 2017 Aug 8, 2017 QUEST DIAGNOSTICS INC Director Sell 26.3 -296 -4.70% ✗ $31.6K
Jul 27, 2017 Jul 31, 2017 QUEST DIAGNOSTICS INC Director Sell 22.5 -1,304 -17.16% ✗ $141.8K
Aug 3, 2016 Aug 4, 2016 QUEST DIAGNOSTICS INC Director Sell 20.0 -6,345 -14.65% ✗ $543.3K