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Disclosery

A.R.T. Advisors, LLC: BIIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of A.R.T. Advisors, LLC on BIIB, newest first. How the timeline and the estimate are built.

A.R.T. Advisors, LLC held 0 BIIB shares at 2020-09-30 per its 13F-HR filed 2020-11-16.

the latest 13F is the newest step

  1. period ended2020-09-30
    13F 0 shares
    Change vs previous 13F -1,391 shares

    13F-HR 0001012975-20-000817 filed by A.R.T. Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2020-06-30
    13F 1,391 shares
    Change vs previous 13F +1,391 shares

    0.56% of the 13F portfolio, value $372,000.

    13F-HR 0001012975-20-000682 filed by A.R.T. Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2020-03-31
    13F 0 shares
    Change vs previous 13F -29,091 shares

    13F-HR 0001012975-20-000436 filed by A.R.T. Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  4. period ended2019-12-31
    13F 29,091 shares
    Change vs previous 13F not available

    0.43% of the 13F portfolio, value $8,632,000.

    13F-HR 0001012975-20-000123 filed by A.R.T. Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).