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Perceptive Life Sciences Master Fund LTD insider trades
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Perceptive Life Sciences Master Fund LTD insider trades

Perceptive Life Sciences Master Fund LTD has filed 27 Form 4s with the SEC that we hold, for Aldeyra Therapeutics, Inc. (ALDX) (10% owner), MeiraGTx Holdings plc (MGTX) (Director, 10% owner), ATXS (Director) and CERE (Director), among 15 companies in all. Across all of them we count 21 purchases worth $133.0M and 7 sales worth $12.4M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a purchase of 1,425,000 shares of CERE worth $49.9M, dated 2022-08-16. The first filing on our record is dated 2021-07-09 and the latest 2026-04-23.

Aldeyra Therapeutics, Inc. (ALDX)

10% owner · 7 filings · 10 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-07-28P, purchase reported on Form 4119,392$597.0K2022-08-01
2022-08-02P, purchase reported on Form 4412,406$2.3M2022-08-04
2022-08-03P, purchase reported on Form 4100,000$584.0K2022-08-05
2022-08-05P, purchase reported on Form 4141,000$980.0K2022-08-09
2023-10-16S, sale reported on Form 42,450,000$3.9M2023-10-18
2023-10-18S, sale reported on Form 4306,499$533.3K2023-10-18
2024-04-01P, purchase reported on Form 48,374$27.2K2024-04-03
2024-04-02P, purchase reported on Form 4186,051$640.0K2024-04-03
2024-04-03P, purchase reported on Form 4309,847$1.3M2024-04-03
2025-04-03S, sale reported on Form 43,400,000$4.8M2025-04-07

MeiraGTx Holdings plc (MGTX)

Director, 10% owner · 3 filings · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2023-05-05P, purchase reported on Form 44,347,826$25.0M2023-05-15

ATXS

Director · 2 filings · 3 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-12-19P, purchase reported on Form 4908,265$10.0M2022-12-21
2023-10-16P, purchase reported on Form 4614,062$4.0M2023-10-18
2023-10-16P, purchase reported on Form 4460,546$3.0M2023-10-18

CERE

Director · 2 filings · 2 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-07-07P, purchase reported on Form 4200,000$5.0M2021-07-09
2022-08-16P, purchase reported on Form 41,425,000$49.9M2022-08-18

Nautilus Biotechnology, Inc. (NAUT)

Director · 2 filings · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2021-12-08P, purchase reported on Form 4200,000$1.1M2021-12-10

Solid Biosciences Inc. (SLDB)

Director, 10% owner · 2 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Acrivon Therapeutics, Inc. (ACRV)

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2024-04-11P, purchase reported on Form 42,353,000$20.0M2024-04-15

Adma Biologics, INC. (ADMA)

10% owner · 1 filing · 3 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-08-17S, sale reported on Form 4879,092$1.2M2021-08-19
2021-08-18S, sale reported on Form 4552,380$712.6K2021-08-19
2021-08-19S, sale reported on Form 4350,352$434.4K2021-08-19

Crinetics Pharmaceuticals, Inc. (CRNX)

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2022-04-18P, purchase reported on Form 4157,515$3.5M2022-04-18

LeonaBio, Inc. (ATHA)

Director, 10% owner · 1 filing · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

LianBio (LIAN)

Director, 10% owner · 1 filing · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Orchestra BioMed Holdings, Inc. (OBIO)

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2025-08-01P, purchase reported on Form 4700,000$1.9M2025-08-05

SLNO

10% owner · 1 filing · 3 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-05-30P, purchase reported on Form 417,500$93.5K2023-06-01
2023-05-31P, purchase reported on Form 410,000$52.8K2023-06-01
2023-06-01P, purchase reported on Form 47,500$41.9K2023-06-01

Verrica Pharmaceuticals Inc. (VRCA)

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2022-07-05P, purchase reported on Form 41,428,571$3.0M2022-07-05

Yarrow Bioscience, Inc. (VYNE)

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2021-08-12S, sale reported on Form 4338,897$755.7K2021-08-16
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1249675) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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