Atchinson Robert (CIK 0001403404)

Latest company ownership

RPRX - Royalty Pharma plc
Role: 10% Owner
Shares held
38,714,280
Last filed at
Dec 18, 2020
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q2 2025Q4
GCMG - GCM Grosvenor Inc.
Role: 10% Owner
Shares held
8,476,690
Last filed at
May 10, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q4 2025Q4
Shares held
7,550,882
Last filed at
Jun 12, 2017
Confidence Score
50.0
2025Q4
Confidence Score History
2012Q2 2025Q4
Shares held
4,421,660
Last filed at
Oct 17, 2025
Confidence Score
80.0
2025Q4
Confidence Score History
2025Q4 2025Q4
Shares held
4,248,084
Last filed at
Feb 19, 2025
Confidence Score
50.5
2025Q4
Confidence Score History
2025Q1 2025Q4
Shares held
2,525,000
Last filed at
May 16, 2017
Confidence Score
50.0
2025Q4
Confidence Score History
2017Q2 2025Q4
Shares held
781,535
Last filed at
Dec 3, 2020
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q4 2025Q4
Shares held
0
Last filed at
Jan 24, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2023Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Oct 16, 2025 Oct 17, 2025 Praxis Precision Medicines, Inc. 10% Owner Buy 90.0 +313,910 1.44% ✗ $33.2M
Feb 18, 2025 Feb 19, 2025 Solid Biosciences Inc. 10% Owner Buy 95.0 +252,545 6.32% ✗ $1.9M
May 8, 2023 May 10, 2023 GCM Grosvenor Inc. 10% Owner Sell 17.5 -229,138 -1.07% ✗ $1.7M
May 3, 2023 May 5, 2023 GCM Grosvenor Inc. 10% Owner Sell 17.5 -315,224 -3.42% ✗ $2.5M
Apr 26, 2023 Apr 28, 2023 GCM Grosvenor Inc. 10% Owner Sell 17.5 -239,513 -1.65% ✗ $1.9M
Jan 23, 2023 Jan 24, 2023 Abacus Global Management, Inc. 10% Owner Sell 15.0 -2,348,214 -100.00% ✗ $24M
May 18, 2021 Jul 13, 2021 GCM Grosvenor Inc. 10% Owner Buy 87.5 +184,129 1.93% ✗ $1.7M
Feb 23, 2021 Jul 13, 2021 GCM Grosvenor Inc. 10% Owner Sell 16.3 -517,254 -4.90% ✗ $6.8M
Jan 12, 2021 Jul 13, 2021 GCM Grosvenor Inc. 10% Owner Sell 17.5 -357,910 -3.18% ✗ $4.8M
Nov 20, 2020 Jul 13, 2021 GCM Grosvenor Inc. 10% Owner Sell 42.5 -197,793 -0.12% ✗ $2.9M
Dec 17, 2020 Dec 18, 2020 Royalty Pharma plc 10% Owner Sell 15.0 -7,301,050 -15.87% ✗ $320.7M
Dec 1, 2020 Dec 3, 2020 ADVENT TECHNOLOGIES HOLDINGS, INC. 10% Owner Sell 15.0 -1,018,465 -56.58% ✗ $12.3M
Jun 18, 2020 Jun 22, 2020 Royalty Pharma plc 10% Owner Buy 97.5 +3,000,000 6.97% ✗ $84M
Jun 8, 2017 Jun 12, 2017 PUMA BIOTECHNOLOGY, INC. 10% Owner Sell 15.0 -247,260 -3.17% ✗ $19.9M
Jun 1, 2017 Jun 5, 2017 PUMA BIOTECHNOLOGY, INC. 10% Owner Sell 15.0 -507,128 -5.80% ✗ $44.5M
May 24, 2017 May 26, 2017 PUMA BIOTECHNOLOGY, INC. 10% Owner Sell 15.0 -1,235,700 -10.91% ✗ $93.1M
May 12, 2017 May 16, 2017 Solaris Energy Infrastructure, Inc. 10% Owner Buy 90.0 +75,000 3.06% ✗ $861.9K
Nov 8, 2013 Nov 12, 2013 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 67.5 +22,549 0.40% ✗ $877.6K
Nov 5, 2013 Nov 6, 2013 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 97.5 +280,700 5.21% ✗ $11.1M
Oct 9, 2013 Oct 11, 2013 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 78.8 +140,900 0.89% ✗ $5.7M
Dec 18, 2012 Dec 20, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 67.5 +29,560 0.28% ✗ $561.5K
Dec 12, 2012 Dec 14, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 67.5 +10,400 0.20% ✗ $577.6K
Dec 7, 2012 Dec 11, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 77.5 +140,040 0.92% ✗ $2.7M
Oct 18, 2012 Oct 22, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 100.0 +610,000 13.76% ✗ $9.8M
Jul 25, 2012 Jul 27, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 96.3 +465,400 5.85% ✗ $5.8M
Jul 25, 2012 Jul 27, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 96.3 +604,000 7.73% ✗ $7.5M
Jul 16, 2012 Jul 18, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 92.5 +153,000 4.01% ✗ $1.7M
Jun 29, 2012 Jul 3, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 87.5 +178,424 2.40% ✗ $2M
May 1, 2012 May 3, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 60.0 +13,500 0.19% ✗ $178.9K
Apr 26, 2012 May 1, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 87.5 +122,195 1.72% ✗ $1.7M
Apr 25, 2012 Apr 26, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 95.0 +200,000 6.06% ✗ $2.8M
Apr 24, 2012 Apr 26, 2012 PUMA BIOTECHNOLOGY, INC. 10% Owner Buy 92.5 +100,000 3.13% ✗ $1.4M