Perceptive Life Sciences Master Fund Ltd (CIK 0001249675)

Latest company ownership

LIANY - LianBio
Role: Director
Shares held
53,829,960
Last filed at
Feb 20, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2021Q4 2025Q4
Shares held
20,724,424
Last filed at
Feb 19, 2019
Confidence Score
50.0
2025Q4
Confidence Score History
2016Q3 2025Q4
ADMA - ADMA BIOLOGICS, INC.
Role: 10% Owner
Shares held
13,262,375
Last filed at
Sep 30, 2021
Confidence Score
50.0
2025Q4
Confidence Score History
2019Q2 2025Q4
Shares held
12,531,103
Last filed at
Aug 14, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2018Q2 2025Q4
Shares held
7,099,182
Last filed at
Dec 29, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2018Q2 2025Q4
Shares held
5,875,851
Last filed at
Apr 7, 2025
Confidence Score
48.5
2025Q4
Confidence Score History
2015Q4 2025Q4
Shares held
5,402,964
Last filed at
Dec 29, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q3 2025Q4
Shares held
5,321,032
Last filed at
Apr 18, 2022
Confidence Score
50.0
2025Q4
Confidence Score History
2018Q3 2025Q4
Shares held
4,935,057
Last filed at
Aug 18, 2021
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q2 2025Q4
TLPH - TALPHERA, INC.
Role: 10% Owner
Shares held
4,533,728
Last filed at
Jun 21, 2017
Confidence Score
50.0
2025Q4
Confidence Score History
2013Q3 2025Q4
Shares held
3,508,771
Last filed at
Sep 28, 2021
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q2 2025Q4
Shares held
3,104,139
Last filed at
May 1, 2025
Confidence Score
47.7
2025Q4
Confidence Score History
2024Q2 2025Q4
SCYX - SCYNEXIS INC
Role: 10% Owner
Shares held
1,800,000
Last filed at
Jan 26, 2021
Confidence Score
50.0
2025Q4
Confidence Score History
2021Q1 2025Q4
Shares held
1,611,699
Last filed at
Feb 5, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2022Q4 2025Q4
Shares held
1,500,000
Last filed at
Aug 5, 2025
Confidence Score
59.4
2025Q4
Confidence Score History
2025Q3 2025Q4
Shares held
250,000
Last filed at
Sep 28, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2023Q2 2025Q4
Shares held
73,107
Last filed at
Jan 12, 2024
Confidence Score
50.6
2025Q4
Confidence Score History
2018Q1 2025Q4
Shares held
45,000
Last filed at
Jun 17, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2021Q2 2025Q4
Shares held
14,026
Last filed at
Nov 13, 2025
Confidence Score
12.5
2025Q4
Confidence Score History
2020Q2 2025Q4
Shares held
0
Last filed at
Dec 3, 2008
Confidence Score
50.0
2025Q4
Confidence Score History
2007Q4 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Nov 11, 2025 Nov 13, 2025 Lyra Therapeutics, Inc. 10% Owner Sell 22.5 -45,875 -8.58% ✗ $182.5K
Nov 6, 2025 Nov 10, 2025 Lyra Therapeutics, Inc. 10% Owner Sell 20.0 -70,390 -10.33% ✗ $344.2K
Aug 1, 2025 Aug 5, 2025 Orchestra BioMed Holdings, Inc. 10% Owner Buy 100.0 +700,000 15.24% ✗ $1.9M
Apr 30, 2025 May 1, 2025 Acrivon Therapeutics, Inc. 10% Owner Sell 17.5 -736,767 -19.18% ✗ $1M
Apr 25, 2025 Apr 29, 2025 Acrivon Therapeutics, Inc. 10% Owner Sell 17.5 -1,519,952 -28.35% ✗ $2.7M
Apr 3, 2025 Apr 7, 2025 Aldeyra Therapeutics, Inc. 10% Owner Sell 17.5 -3,400,000 -36.65% ✗ $4.8M
Feb 19, 2025 Feb 21, 2025 Solid Biosciences Inc. Director Buy 100.0 +5,000,000 73.17% ✗ $20.2M
Aug 12, 2024 Aug 14, 2024 MeiraGTx Holdings plc Director Buy 100.0 +1,250,000 11.08% ✗ $5M
Apr 11, 2024 Apr 15, 2024 Acrivon Therapeutics, Inc. 10% Owner Buy 100.0 +2,353,000 78.23% ✗ $20M
Apr 4, 2024 Apr 8, 2024 Aldeyra Therapeutics, Inc. 10% Owner Buy 85.0 +177,993 1.96% ✗ $833.9K
Apr 1, 2024 Apr 3, 2024 Aldeyra Therapeutics, Inc. 10% Owner Buy 95.0 +504,272 5.87% ✗ $1.9M
Feb 15, 2024 Feb 20, 2024 LianBio Director Sell 22.5 -38,436 -1.01% ✗ $183K
Feb 1, 2024 Feb 5, 2024 Astria Therapeutics, Inc. Director Buy 100.0 +2,481,350 103.72% ✗ $30M
Jan 11, 2024 Jan 12, 2024 Solid Biosciences Inc. Director Buy 100.0 +3,410,713 99.65% ✗ $18.9M
Dec 27, 2023 Dec 29, 2023 Verrica Pharmaceuticals Inc. 10% Owner Buy 92.5 +321,616 4.75% ✗ $2.3M
Dec 27, 2023 Dec 29, 2023 Athira Pharma, Inc. Director Buy 100.0 +605,686 12.63% ✗ $1.5M
Dec 21, 2023 Dec 26, 2023 Verrica Pharmaceuticals Inc. 10% Owner Buy 95.0 +504,652 8.04% ✗ $3.3M
Dec 21, 2023 Dec 22, 2023 Astria Therapeutics, Inc. Director Buy 100.0 +740,000 44.78% ✗ $4.6M
Dec 15, 2023 Dec 19, 2023 Verrica Pharmaceuticals Inc. 10% Owner Buy 100.0 +1,233,931 24.49% ✗ $6.9M
Oct 16, 2023 Oct 18, 2023 Aldeyra Therapeutics, Inc. 10% Owner Sell 17.5 -2,756,499 -24.29% ✗ $4.5M
Oct 16, 2023 Oct 18, 2023 Astria Therapeutics, Inc. Director Buy 100.0 +1,074,608 49.08% ✗ $7M
Sep 26, 2023 Sep 28, 2023 SOLENO THERAPEUTICS INC 10% Owner Buy 100.0 +866,789 39.26% ✗ $15.1M
Jun 2, 2023 Jun 6, 2023 SOLENO THERAPEUTICS INC 10% Owner Buy 92.5 +143,298 6.94% ✗ $853.7K
May 31, 2023 Jun 2, 2023 Lyra Therapeutics, Inc. 10% Owner Buy 100.0 +3,610,832 45.95% ✗ $9M
May 30, 2023 Jun 1, 2023 SOLENO THERAPEUTICS INC 10% Owner Buy 82.5 +35,000 1.72% ✗ $188.2K
May 24, 2023 May 26, 2023 SOLENO THERAPEUTICS INC 10% Owner Buy 90.0 +85,000 4.37% ✗ $449.8K
May 19, 2023 May 23, 2023 SOLENO THERAPEUTICS INC 10% Owner Buy 90.0 +80,000 4.29% ✗ $406.1K
May 5, 2023 May 15, 2023 MeiraGTx Holdings plc 10% Owner Buy 100.0 +4,347,826 62.71% ✗ $25M
Dec 19, 2022 Dec 21, 2022 Astria Therapeutics, Inc. Director Buy 100.0 +908,265 698.43% ✗ $10M
Aug 18, 2022 Aug 22, 2022 LianBio Director Buy 87.5 +998,240 1.76% ✗ $2.4M
Aug 9, 2022 Aug 11, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 85.0 +115,000 1.02% ✗ $867.8K
Aug 8, 2022 Aug 10, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 75.0 +97,000 0.87% ✗ $702.3K
Aug 5, 2022 Aug 9, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 85.0 +141,000 1.28% ✗ $980K
Aug 4, 2022 Aug 8, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 75.0 +95,100 0.87% ✗ $586.8K
Aug 3, 2022 Aug 5, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 75.0 +100,000 0.93% ✗ $584K
Aug 2, 2022 Aug 4, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 92.5 +412,406 3.97% ✗ $2.3M
Aug 1, 2022 Aug 3, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 85.0 +144,185 1.41% ✗ $728.1K
Jul 29, 2022 Aug 2, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 87.5 +222,123 2.22% ✗ $1.1M
Jul 28, 2022 Aug 1, 2022 Aldeyra Therapeutics, Inc. 10% Owner Buy 85.0 +119,392 1.21% ✗ $597K
Jul 5, 2022 Jul 5, 2022 Verrica Pharmaceuticals Inc. 10% Owner Buy 100.0 +1,428,571 39.57% ✗ $3M
Jun 29, 2022 Jul 1, 2022 Athira Pharma, Inc. Director Buy 100.0 +1,371,362 40.03% ✗ $4.1M
May 26, 2022 May 27, 2022 LianBio Director Buy 60.0 +69,000 0.12% ✗ $216K
May 23, 2022 May 25, 2022 LianBio Director Buy 67.5 +171,251 0.30% ✗ $442.4K
Apr 18, 2022 Apr 18, 2022 Crinetics Pharmaceuticals, Inc. 10% Owner Buy 92.5 +157,515 3.05% ✗ $3.5M
Apr 12, 2022 Apr 14, 2022 Lyra Therapeutics, Inc. 10% Owner Buy 100.0 +5,924,170 306.30% ✗ $25M
Dec 8, 2021 Dec 10, 2021 Nautilus Biotechnology, Inc. 10% Owner Buy 87.5 +200,000 2.24% ✗ $1.1M
Nov 3, 2021 Nov 5, 2021 LianBio Director Buy 97.5 +2,270,000 8.87% ✗ $36.3M
Nov 1, 2021 Nov 3, 2021 LianBio 10% Owner Buy 92.5 +220,000 3.13% ✗ $3.2M
Oct 25, 2021 Oct 25, 2021 Crinetics Pharmaceuticals, Inc. 10% Owner Buy 100.0 +1,200,000 30.28% ✗ $23.8M
Sep 28, 2021 Sep 30, 2021 ADMA BIOLOGICS, INC. 10% Owner Sell 20.0 -260,603 -1.93% ✗ $299.2K
Sep 24, 2021 Sep 29, 2021 ADMA BIOLOGICS, INC. 10% Owner Sell 20.0 -500,000 -3.57% ✗ $622.5K
Sep 23, 2021 Sep 28, 2021 ADMA BIOLOGICS, INC. 10% Owner Sell 20.0 -780,000 -5.27% ✗ $990.6K
Aug 17, 2021 Aug 19, 2021 ADMA BIOLOGICS, INC. 10% Owner Sell 17.5 -1,781,824 -10.74% ✗ $2.3M
Aug 16, 2021 Aug 18, 2021 VYNE Therapeutics Inc. 10% Owner Sell 20.0 -250,000 -4.82% ✗ $435K
Aug 13, 2021 Aug 17, 2021 VYNE Therapeutics Inc. 10% Owner Sell 20.0 -250,000 -4.60% ✗ $460K
Aug 12, 2021 Aug 16, 2021 VYNE Therapeutics Inc. 10% Owner Sell 20.0 -338,897 -5.87% ✗ $755.7K
May 24, 2021 Jun 11, 2021 Nautilus Biotechnology, Inc. Other Buy 100.0 +8,421,176 853.20% ✗ $55.1M
Jun 3, 2021 Jun 3, 2021 Nautilus Biotechnology, Inc. Director Buy 100.0 +330,050 206.38% ✗ $3.3M
May 20, 2021 May 24, 2021 Nautilus Biotechnology, Inc. Director Buy 100.0 +159,925 100.00% ✗ $1.6M
May 6, 2021 May 7, 2021 VYNE Therapeutics Inc. 10% Owner Sell 17.5 -1,000,000 -14.76% ✗ $3.7M
May 3, 2021 May 4, 2021 Aldeyra Therapeutics, Inc. 10% Owner Buy 100.0 +1,200,000 13.79% ✗ $15M
Apr 8, 2021 Apr 9, 2021 Crinetics Pharmaceuticals, Inc. 10% Owner Buy 95.0 +304,136 8.31% ✗ $5M
Mar 23, 2021 Mar 23, 2021 Solid Biosciences Inc. Director Buy 100.0 +2,608,695 24.15% ✗ $15M
Jan 28, 2021 Feb 1, 2021 VYNE Therapeutics Inc. 10% Owner Buy 100.0 +4,219,409 18.44% ✗ $10M
Jan 25, 2021 Jan 27, 2021 Athira Pharma, Inc. Director Buy 96.3 +311,111 9.99% ✗ $7M
Jan 20, 2021 Jan 26, 2021 SCYNEXIS INC 10% Owner Sell 17.5 -599,000 -6.99% ✗ $4.7M
Jan 19, 2021 Jan 21, 2021 Aldeyra Therapeutics, Inc. 10% Owner Buy 100.0 +1,368,421 18.65% ✗ $13M
Jan 7, 2021 Jan 11, 2021 Aldeyra Therapeutics, Inc. 10% Owner Buy 100.0 +1,050,000 16.71% ✗ $9.2M
Nov 23, 2020 Nov 24, 2020 MeiraGTx Holdings plc Director Buy 96.3 +500,000 7.77% ✗ $6.4M
Sep 22, 2020 Sep 22, 2020 Athira Pharma, Inc. 10% Owner Buy 100.0 +1,058,824 51.50% ✗ $18M
Jul 9, 2020 Jul 13, 2020 Aldeyra Therapeutics, Inc. 10% Owner Buy 100.0 +3,200,000 103.71% ✗ $13.6M
Jun 22, 2020 Jun 24, 2020 LEAP THERAPEUTICS, INC. 10% Owner Buy 100.0 +1,750,000 26.02% ✗ $3.5M
Jun 9, 2020 Jun 11, 2020 VYNE Therapeutics Inc. 10% Owner Buy 100.0 +2,702,702 13.40% ✗ $5M
May 5, 2020 May 29, 2020 Lyra Therapeutics, Inc. 10% Owner Buy 100.0 +625,000 47.74% ✗ $10M
May 5, 2020 May 6, 2020 Lyra Therapeutics, Inc. 10% Owner Sell 17.5 -259,346 -9.08% ✗ $4.1M
Apr 17, 2020 Apr 20, 2020 Crinetics Pharmaceuticals, Inc. 10% Owner Buy 100.0 +1,071,428 41.40% ✗ $15M
Mar 19, 2020 Mar 23, 2020 ADMA BIOLOGICS, INC. 10% Owner Buy 92.5 +500,000 3.11% ✗ $1.1M
Feb 11, 2020 Feb 11, 2020 ADMA BIOLOGICS, INC. 10% Owner Buy 100.0 +4,563,700 39.61% ✗ $16M
Aug 12, 2019 Aug 20, 2019 MeiraGTx Holdings plc Director Buy 96.3 +425,531 7.08% ✗ $10M
Jul 25, 2019 Jul 29, 2019 Solid Biosciences Inc. Director Buy 100.0 +2,822,581 71.87% ✗ $13.1M
May 21, 2019 May 23, 2019 ADMA BIOLOGICS, INC. 10% Owner Buy 100.0 +4,000,000 53.18% ✗ $16M
Mar 1, 2019 Mar 5, 2019 MeiraGTx Holdings plc 10% Owner Buy 100.0 +1,304,348 27.73% ✗ $18M
Sep 24, 2018 Oct 5, 2018 AMICUS THERAPEUTICS, INC. 10% Owner Buy 67.5 +50,000 0.24% ✗ $629.7K
Sep 21, 2018 Sep 25, 2018 AMICUS THERAPEUTICS, INC. 10% Owner Buy 67.5 +50,000 0.24% ✗ $626.5K
Sep 13, 2018 Sep 17, 2018 AMICUS THERAPEUTICS, INC. 10% Owner Buy 70.0 +100,000 0.49% ✗ $1.2M
Sep 12, 2018 Sep 14, 2018 AMICUS THERAPEUTICS, INC. 10% Owner Buy 88.8 +500,000 2.50% ✗ $6M
Jul 18, 2018 Aug 27, 2018 Crinetics Pharmaceuticals, Inc. Director Buy 100.0 +707,648 32.34% ✗ $13.4M
Jun 19, 2018 Aug 1, 2018 Verrica Pharmaceuticals Inc. 10% Owner Buy 100.0 +1,000,000 41.49% ✗ $15M
Jul 20, 2018 Jul 20, 2018 Crinetics Pharmaceuticals, Inc. Director Buy 100.0 +400,000 21.27% ✗ $6.8M
Jun 8, 2018 Jun 12, 2018 MeiraGTx Holdings plc Director Buy 100.0 +1,383,333 41.67% ✗ $20.8M
Mar 5, 2018 Mar 7, 2018 AMICUS THERAPEUTICS, INC. 10% Owner Buy 87.5 +335,827 1.86% ✗ $4.6M
Mar 2, 2018 Mar 6, 2018 AMICUS THERAPEUTICS, INC. 10% Owner Buy 77.5 +100,000 0.56% ✗ $1.4M
Mar 1, 2018 Mar 5, 2018 AMICUS THERAPEUTICS, INC. 10% Owner Buy 77.5 +100,000 0.56% ✗ $1.4M
Jan 30, 2018 Jan 30, 2018 Solid Biosciences Inc. Director Buy 100.0 +1,020,000 35.09% ✗ $16.5M
Sep 19, 2017 Sep 21, 2017 Aldeyra Therapeutics, Inc. 10% Owner Buy 95.0 +200,000 6.93% ✗ $1.5M
Jul 13, 2017 Jul 14, 2017 AMICUS THERAPEUTICS, INC. 10% Owner Buy 97.5 +1,500,000 9.15% ✗ $18.4M
Jun 30, 2017 Jul 5, 2017 Aldeyra Therapeutics, Inc. 10% Owner Buy 100.0 +296,007 11.43% ✗ $1.4M
Jun 19, 2017 Jun 21, 2017 TALPHERA, INC. 10% Owner Sell 17.5 -875,000 -16.18% ✗ $2.1M
Feb 14, 2017 Feb 15, 2017 Aldeyra Therapeutics, Inc. 10% Owner Buy 100.0 +893,025 52.64% ✗ $4M
Dec 30, 2016 Jan 4, 2017 AMICUS THERAPEUTICS, INC. 10% Owner Buy 75.0 +94,750 0.58% ✗ $470.1K