Insider · CIK 0001578696

Davidson David

CIK 0001578696 Name as filed on the most recent filing

Filed as Davidson David (88)

216 transaction lines · from 88 filings · filed 2013-12-18 to 2021-04-07 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-26 05:24 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

216 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-26 05:24 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2018-04-02 S, Open-market sale bluebird bio, Inc.BLUE 155,446, disposed Open Form 4 filing 0001209191-18-023720
2018-03-02 S, Open-market sale bluebird bio, Inc.BLUE 3 lines 804,751, disposed Open Form 4 filing 0001209191-18-017256
2018-02-02 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 809,441, disposed Open Form 4 filing 0001209191-18-007403
2018-01-08 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 208,883, disposed Open Form 4 filing 0001209191-18-002902
2018-01-05 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 402,579, disposed Open Form 4 filing 0001209191-18-002902
2018-01-03 S, Open-market sale bluebird bio, Inc.BLUE 4 lines 1,081,781, disposed Open Form 4 filing 0001209191-18-002443
2017-12-01 S, Open-market sale bluebird bio, Inc.BLUE 3 lines 689,679, disposed Open Form 4 filing 0001209191-17-063878
2017-11-01 S, Open-market sale bluebird bio, Inc.BLUE 3 lines 580,822, disposed Open Form 4 filing 0001209191-17-059145
2017-10-02 S, Open-market sale bluebird bio, Inc.BLUE 3 lines 525,249, disposed Open Form 4 filing 0001209191-17-055737
2017-09-01 S, Open-market sale bluebird bio, Inc.BLUE 3 lines 1,548,904, disposed Open Form 4 filing 0001209191-17-051590
2017-08-01 S, Open-market sale bluebird bio, Inc.BLUE 3 lines 277,099, disposed Open Form 4 filing 0001209191-17-047289
2017-07-07 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 120,583, disposed Open Form 4 filing 0001209191-17-044766
2017-07-05 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 526,395, disposed Open Form 4 filing 0001209191-17-044357
2017-06-05 S, Open-market sale bluebird bio, Inc.BLUE 90,002, disposed Open Form 4 filing 0001209191-17-038325
2017-06-01 S, Open-market sale bluebird bio, Inc.BLUE 150,849, disposed Open Form 4 filing 0001209191-17-037736
2017-05-01 S, Open-market sale bluebird bio, Inc.BLUE 3 lines 266,208, disposed Open Form 4 filing 0001209191-17-029664
2017-04-03 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 272,683, disposed Open Form 4 filing 0001209191-17-025588
2017-03-01 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 449,644, disposed Open Form 4 filing 0001209191-17-017474
2017-02-01 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 148,187, disposed Open Form 4 filing 0001209191-17-007610
2017-01-27 S, Open-market sale bluebird bio, Inc.BLUE 2 lines 414,149, disposed Open Form 4 filing 0001209191-17-006382
2017-01-05 S, Open-market sale bluebird bio, Inc.BLUE 61,933, disposed Open Form 4 filing 0001209191-17-002920
2016-07-15 S, Open-market sale bluebird bio, Inc.BLUE 45,078, disposed Open Form 4 filing 0001209191-16-133293
2016-06-15 S, Open-market sale bluebird bio, Inc.BLUE 40,112, disposed Open Form 4 filing 0001209191-16-128178
2016-05-16 S, Open-market sale bluebird bio, Inc.BLUE 38,729, disposed Open Form 4 filing 0001209191-16-121252

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Codes on this page
S, Open-market sale
Open-market sale
Relationships on this page
O, Officer
Officer

Every value is as reported on the Form 4, totalled to the dollar. Share counts, the price per share and the full list of reporting owners are on each filing's own page, which every row here opens. A row marked n lines adds up that many filed lines of one filing, on one day, on one side of the market; a filing whose lines fall across two pages is left as its lines on both, so no total here is ever short.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 0
  • Open-market sale 216
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. Davidson David, insider transactions. Retrieved 2026-08-27 from https://ebomi.com/insider/0001578696

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

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