Morrison Briggs (CIK 0001654430)

Latest company ownership

ARVN - ARVINAS, INC.
Role: Director
Shares held
76,021
Last filed at
Sep 24, 2025
Confidence Score
58.4
2025Q4
Confidence Score History
2020Q1 2025Q4
Shares held
34,836
Last filed at
Feb 9, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2019Q2 2025Q4
Shares held
27,200
Last filed at
Jun 20, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q2 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Sep 22, 2025 Sep 24, 2025 ARVINAS, INC. Director Buy 95.0 +30,000 65.19% ✗ $227K
Aug 9, 2023 Aug 10, 2023 Syndax Pharmaceuticals Inc Director Sell 20.0 -52,855 -74.77% ✗ $965.4K
Jul 10, 2023 Jul 11, 2023 Syndax Pharmaceuticals Inc Director Sell 17.5 -52,855 -74.77% ✗ $1.1M
Jun 9, 2023 Jun 9, 2023 Syndax Pharmaceuticals Inc Director Sell 17.5 -52,855 -74.77% ✗ $1.1M
May 9, 2023 May 10, 2023 Syndax Pharmaceuticals Inc Director Sell 17.5 -52,855 -74.77% ✗ $1.1M
Apr 10, 2023 Apr 12, 2023 Syndax Pharmaceuticals Inc Director Sell 17.5 -52,855 -74.77% ✗ $1M
Mar 13, 2023 Mar 14, 2023 Syndax Pharmaceuticals Inc President Sell 5.0 -52,854 -74.77% ✓ $1.2M
Feb 6, 2023 Feb 8, 2023 Syndax Pharmaceuticals Inc President Sell 5.0 -52,854 -74.77% ✓ $1.4M
Sep 19, 2022 Sep 21, 2022 Syndax Pharmaceuticals Inc President Sell 5.0 -173,988 -82.99% ✓ $4M
Sep 14, 2022 Sep 16, 2022 Syndax Pharmaceuticals Inc President Sell 3.8 -279,420 -79.66% ✓ $6.6M
Jul 1, 2022 Jul 5, 2022 Syndax Pharmaceuticals Inc President Sell 5.0 -62,292 -77.74% ✓ $1.2M
Apr 14, 2022 Apr 18, 2022 ARVINAS, INC. Director Sell 5.0 -20,960 -51.20% ✓ $1.4M
Apr 1, 2022 Apr 5, 2022 Syndax Pharmaceuticals Inc President Sell 5.0 -104,173 -52.08% ✓ $1.8M
Jan 14, 2022 Jan 19, 2022 ARVINAS, INC. Director Sell 5.0 -20,960 -45.86% ✓ $1.4M
Dec 17, 2021 Dec 20, 2021 Syndax Pharmaceuticals Inc CEO Sell 7.5 -35,156 -42.11% ✓ $703.1K
Sep 17, 2021 Sep 21, 2021 Syndax Pharmaceuticals Inc CEO Sell 5.0 -70,312 -42.11% ✓ $1.4M
Feb 8, 2021 Feb 10, 2021 Syndax Pharmaceuticals Inc CEO Sell 7.5 -35,156 -42.11% ✓ $722.4K
Jan 31, 2021 Feb 5, 2021 Syndax Pharmaceuticals Inc CEO Buy 83.8 +1,771 3.80% ✗ $21.3K
Nov 9, 2020 Nov 12, 2020 Syndax Pharmaceuticals Inc CEO Sell 17.5 -80,404 -46.33% ✗ $1.6M
Jun 23, 2020 Jun 25, 2020 Repare Therapeutics Inc. Director Buy 95.0 +4,800 100.00% ✗ $96K
Mar 24, 2020 Mar 25, 2020 ARVINAS, INC. Director Buy 90.0 +2,500 9.25% ✗ $95.5K
Feb 4, 2020 Feb 5, 2020 Syndax Pharmaceuticals Inc CEO Buy 95.0 +12,500 39.81% ✗ $100K
Oct 10, 2019 Oct 11, 2019 Syndax Pharmaceuticals Inc CEO Buy 95.0 +11,000 53.92% ✗ $59.4K
May 9, 2019 May 13, 2019 Syndax Pharmaceuticals Inc CEO Buy 95.0 +20,400 100.00% ✗ $152.2K