Insider · CIK 0001254801

Weisberg Seth

CIK 0001254801 Name as filed on the most recent filing

Filed as Weisberg Seth (53)

113 transaction lines · from 53 filings · filed 2005-03-16 to 2017-08-07 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 2026-08-25 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.

113 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 2026-08-25 05:24 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2015-03-25 S, Open-market sale Stamps.Com IncSTMP 2,019,303, disposed Open Form 4 filing 0001209191-15-029996
2015-03-19 S, Open-market sale Stamps.Com IncSTMP 6,903, disposed Open Form 4 filing 0001209191-15-028294
2015-03-18 S, Open-market sale Stamps.Com IncSTMP 23,600, disposed Open Form 4 filing 0001209191-15-028294
2015-03-05 S, Open-market sale Stamps.Com IncSTMP 5,900, disposed Open Form 4 filing 0001209191-15-023689
2015-03-04 S, Open-market sale Stamps.Com IncSTMP 294,436, disposed Open Form 4 filing 0001209191-15-023689
2015-03-02 S, Open-market sale Stamps.Com IncSTMP 82,600, disposed Open Form 4 filing 0001209191-15-022593
2015-02-12 S, Open-market sale Stamps.Com IncSTMP 1,352,838, disposed Open Form 4 filing 0001209191-15-014805
2014-12-15 S, Open-market sale Stamps.Com IncSTMP 15,000, disposed Open Form 4 filing 0001209191-14-076409
2014-12-11 S, Open-market sale Stamps.Com IncSTMP 22,750, disposed Open Form 4 filing 0001209191-14-075041
2014-12-10 S, Open-market sale Stamps.Com IncSTMP 10,000, disposed Open Form 4 filing 0001209191-14-075041
2014-12-08 S, Open-market sale Stamps.Com IncSTMP 95,000, disposed Open Form 4 filing 0001209191-14-073985
2014-12-05 S, Open-market sale Stamps.Com IncSTMP 250,018, disposed Open Form 4 filing 0001209191-14-073984
2014-11-11 S, Open-market sale Stamps.Com IncSTMP 610,955, disposed Open Form 4 filing 0001209191-14-068501
2014-11-06 S, Open-market sale Stamps.Com IncSTMP 545,350, disposed Open Form 4 filing 0001209191-14-067647
2014-10-30 S, Open-market sale Stamps.Com IncSTMP 44,520, disposed Open Form 4 filing 0001209191-14-065752
2013-10-24 S, Open-market sale Stamps.Com IncSTMP 480,000, disposed Open Form 4 filing 0001209191-13-049560
2013-10-01 S, Open-market sale Stamps.Com IncSTMP 195,953, disposed Open Form 4 filing 0001209191-13-046826
2013-09-30 S, Open-market sale Stamps.Com IncSTMP 115,460, disposed Open Form 4 filing 0001209191-13-046826
2013-09-25 S, Open-market sale Stamps.Com IncSTMP 118,588, disposed Open Form 4 filing 0001209191-13-045806
2013-09-24 S, Open-market sale Stamps.Com IncSTMP 30,084, disposed Open Form 4 filing 0001209191-13-045806
2013-08-01 S, Open-market sale Stamps.Com IncSTMP 395,124, disposed Open Form 4 filing 0001209191-13-039076
2013-07-05 S, Open-market sale Stamps.Com IncSTMP 410,000, disposed Open Form 4 filing 0001209191-13-036006
2013-05-10 S, Open-market sale Stamps.Com IncSTMP 157,091, disposed Open Form 4 filing 0001209191-13-025626
2013-05-09 S, Open-market sale Stamps.Com IncSTMP 152,640, disposed Open Form 4 filing 0001209191-13-025626
2013-05-08 S, Open-market sale Stamps.Com IncSTMP 50,403, disposed Open Form 4 filing 0001209191-13-025626
2012-03-28 S, Open-market sale Stamps.Com IncSTMP 86,535, disposed Open Form 4 filing 0001209191-12-020317
2011-10-31 S, Open-market sale Stamps.Com IncSTMP 330,000, disposed Open Form 4 filing 0001209191-11-053708
2011-10-28 S, Open-market sale Stamps.Com IncSTMP 2 lines 590,499, disposed Open Form 4 filing 0001209191-11-053708
2011-10-14 S, Open-market sale Stamps.Com IncSTMP 148,278, disposed Open Form 4 filing 0001209191-11-052105
2011-10-07 S, Open-market sale Stamps.Com IncSTMP 2 lines 284,267, disposed Open Form 4 filing 0001209191-11-051439
2011-09-20 S, Open-market sale Stamps.Com IncSTMP 77,500, disposed Open Form 4 filing 0001209191-11-048760
2011-09-14 S, Open-market sale Stamps.Com IncSTMP 2 lines 435,810, disposed Open Form 4 filing 0001209191-11-048200
2011-09-12 S, Open-market sale Stamps.Com IncSTMP 210,000, disposed Open Form 4 filing 0001209191-11-047730
2011-09-09 S, Open-market sale Stamps.Com IncSTMP 200,000, disposed Open Form 4 filing 0001209191-11-047730
2011-01-05 S, Open-market sale Stamps.Com IncSTMP 91,055, disposed Open Form 4 filing 0001209191-11-002347
2009-06-15 S, Open-market sale Stamps.Com IncSTMP 32,175, disposed Open Form 4 filing 0001209191-09-032538
2006-10-06 S, Open-market sale Stamps.Com IncSTMP 99,150, disposed Open Form 4 filing 0001209191-06-054242
2006-08-09 S, Open-market sale Stamps.Com IncSTMP 96,250, disposed Open Form 4 filing 0001209191-06-045438
2006-07-10 S, Open-market sale Stamps.Com IncSTMP 119,950, disposed Open Form 4 filing 0001209191-06-040993
2006-06-09 S, Open-market sale Stamps.Com IncSTMP 148,100, disposed Open Form 4 filing 0001209191-06-035949
2006-05-11 S, Open-market sale Stamps.Com IncSTMP 156,400, disposed Open Form 4 filing 0001209191-06-029256
2006-04-11 S, Open-market sale Stamps.Com IncSTMP 176,400, disposed Open Form 4 filing 0001209191-06-023486
2006-03-10 S, Open-market sale Stamps.Com IncSTMP 157,500, disposed Open Form 4 filing 0001209191-06-016848
2006-02-10 S, Open-market sale Stamps.Com IncSTMP 150,850, disposed Open Form 4 filing 0001209191-06-009302
2006-01-09 S, Open-market sale Stamps.Com IncSTMP 257,500, disposed Open Form 4 filing 0001209191-06-002616
2005-12-09 S, Open-market sale Stamps.Com IncSTMP 224,300, disposed Open Form 4 filing 0001209191-05-062723
2005-11-10 S, Open-market sale Stamps.Com IncSTMP 110,000, disposed Open Form 4 filing 0001209191-05-057020

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 113
  • 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. WEISBERG SETH, insider transactions. Retrieved 2026-08-26 from https://ebomi.com/insider/0001254801

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

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