ECOR1 CAPITAL, LLC

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Showing 330 results

Adviser
Type
Submitted
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G Submitted
07/24/2025
Adviser EcoR1 Capital, LLC Type 4 Submitted
06/27/2025

Zymeworks Inc.
Director

Non-Derivatives

Title Transaction Date Shares Price Shared Following Owsh.
TitleCommon Stock Transaction Date06/26/2025 Shares5,086,480 Price$0.00 Shared Following22,970,388 OwshI
TitleCommon Stock Transaction Date06/26/2025 Shares41 Price$12.71 Shared Following22,970,388 OwshI

Derivatives

Title Conv. Ex. Price Transaction Date Sec. Title Shares Price Shared Fol. Owsh.
TitlePre-Funded Warrants (right to acquire) Conv. Ex. Price$0.00 Transaction Date06/26/2025 Sec. TitleCommon Stock Shares5,086,521 Price$0.00 Shared Fol.0 Owsh.See note
Adviser EcoR1 Capital, LLC Type SCHEDULE 13D Submitted
06/27/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13D/A Submitted
05/29/2025
Adviser EcoR1 Capital, LLC Type 4 Submitted
05/19/2025

Zymeworks Inc.
Director

Non-Derivatives

Title Transaction Date Shares Price Shared Following Owsh.
TitleCommon Stock Transaction Date05/15/2025 Shares49,502 Price$11.43 Shared Following17,877,989 OwshI
TitleCommon Stock Transaction Date05/19/2025 Shares5,919 Price$11.78 Shared Following17,883,908 OwshI
Adviser EcoR1 Capital, LLC Type SCHEDULE 13D/A Submitted
05/19/2025
Adviser EcoR1 Capital, LLC Type 4 Submitted
05/16/2025

iTeos Therapeutics, Inc.
10% Owner

Non-Derivatives

Title Transaction Date Shares Price Shared Following Owsh.
TitleCommon Stock Transaction Date05/14/2025 Shares1,658,978 Price$7.41 Shared Following7,388,978 OwshI
TitleCommon Stock Transaction Date05/15/2025 Shares3,300,000 Price$8.00 Shared Following10,688,978 OwshI
Adviser EcoR1 Capital, LLC Type SCHEDULE 13D Submitted
05/16/2025
Adviser EcoR1 Capital, LLC Type 13F-HR Submitted
05/15/2025
Stock Ticker Stock Name $ Position % Position $ Change # Shares # Change
Stock Ticker03753U106 Stock NameAPELLIS PHARMACEUTICALS INC $ Position$260.2 b % Position15.00 % $ Change-31.00 % # Shares11,895,808 # Change0.00 %
Stock TickerG50871105 Stock NameJAZZ PHARMACEUTICALS PLC $ Position$211.9 b % Position13.00 % $ Change1.00 % # Shares1,706,469 # Change0.00 %
Stock Ticker98985Y108 Stock NameZYMEWORKS INC $ Position$205.6 b % Position12.00 % $ Change-7.00 % # Shares17,259,548 # Change15.00 %
Stock TickerG72800108 Stock NamePROTHENA CORP PLC $ Position$143.4 b % Position9.00 % $ Change-11.00 % # Shares11,584,280 # Change0.00 %
Stock Ticker032724106 Stock NameANAPTYSBIO INC $ Position$146.5 b % Position9.00 % $ Change41.00 % # Shares7,880,094 # Change0.00 %
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/15/2025
Adviser EcoR1 Capital, LLC Type 3 Submitted
05/13/2025

iTeos Therapeutics, Inc.
10% Owner

Non-Derivatives

Title Transaction Date Shares Price Shared Following Owsh.
TitleCommon Stock Transaction DateN / A Shares Price Shared Following5,730,000 OwshI
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G/A Submitted
05/13/2025
Adviser EcoR1 Capital, LLC Type SCHEDULE 13G Submitted
05/08/2025
Adviser EcoR1 Capital, LLC Type 4 Submitted
05/06/2025

PROTHENA CORP PUBLIC LTD CO
10% Owner

Non-Derivatives

Title Transaction Date Shares Price Shared Following Owsh.
TitleOrdinary Shares Transaction Date05/02/2025 Shares3,317,938 Price$8.36 Shared Following8,266,342 OwshI
TitleOrdinary Shares Transaction Date05/05/2025 Shares977,693 Price$8.11 Shared Following7,288,649 OwshI
TitleOrdinary Shares Transaction Date05/06/2025 Shares1,984,053 Price$7.64 Shared Following5,304,596 OwshI
Adviser EcoR1 Capital, LLC Type SCHEDULE 13D/A Submitted
05/06/2025
Adviser EcoR1 Capital, LLC Type 4 Submitted
04/18/2025

Zymeworks Inc.
Director

Non-Derivatives

Title Transaction Date Shares Price Shared Following Owsh.
TitleCommon Stock Transaction Date04/16/2025 Shares73,953 Price$11.16 Shared Following17,773,727 OwshI
TitleCommon Stock Transaction Date04/17/2025 Shares54,760 Price$11.52 Shared Following17,828,487 OwshI
Adviser EcoR1 Capital, LLC Type SCHEDULE 13D/A Submitted
04/08/2025
Adviser EcoR1 Capital, LLC Type 4 Submitted
04/07/2025

Zymeworks Inc.
Director

Non-Derivatives

Title Transaction Date Shares Price Shared Following Owsh.
TitleCommon Stock Transaction Date04/03/2025 Shares120,770 Price$11.84 Shared Following17,503,336 OwshI
TitleCommon Stock Transaction Date04/04/2025 Shares196,438 Price$11.17 Shared Following17,699,774 OwshI

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