Insider · CIK 0001466275

Sherif Tarek

CIK 0001466275 Name as filed on the most recent filing

Filed as Sherif Tarek (70)

98 transaction lines · from 70 filings · filed 2009-12-10 to 2018-03-13 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 2026-08-22 05:23 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.

98 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 2026-08-22 05:23 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2012-01-05 S, Open-market sale Medidata Solutions, Inc.MDSO 211,764, disposed Open Form 4 filing 0001181431-12-001790
2011-12-02 S, Open-market sale Medidata Solutions, Inc.MDSO 32,990, disposed Open Form 4 filing 0001181431-11-058585
2011-12-01 S, Open-market sale Medidata Solutions, Inc.MDSO 301,243, disposed Open Form 4 filing 0001181431-11-058585
2011-11-02 S, Open-market sale Medidata Solutions, Inc.MDSO 34,134, disposed Open Form 4 filing 0001181431-11-054589
2011-11-01 S, Open-market sale Medidata Solutions, Inc.MDSO 251,498, disposed Open Form 4 filing 0001181431-11-054589
2011-10-04 S, Open-market sale Medidata Solutions, Inc.MDSO 170,187, disposed Open Form 4 filing 0001181431-11-051956
2011-10-03 S, Open-market sale Medidata Solutions, Inc.MDSO 91,444, disposed Open Form 4 filing 0001181431-11-051956
2011-09-15 S, Open-market sale Medidata Solutions, Inc.MDSO 284,267, disposed Open Form 4 filing 0001181431-11-049658
2011-09-14 S, Open-market sale Medidata Solutions, Inc.MDSO 277,554, disposed Open Form 4 filing 0001181431-11-049658
2011-07-13 S, Open-market sale Medidata Solutions, Inc.MDSO 43,650, disposed Open Form 4 filing 0001181431-11-041147
2011-07-12 S, Open-market sale Medidata Solutions, Inc.MDSO 52,851, disposed Open Form 4 filing 0001181431-11-041147
2011-07-07 S, Open-market sale Medidata Solutions, Inc.MDSO 96,869, disposed Open Form 4 filing 0001181431-11-040786
2011-07-06 S, Open-market sale Medidata Solutions, Inc.MDSO 41,444, disposed Open Form 4 filing 0001181431-11-040786
2011-07-05 S, Open-market sale Medidata Solutions, Inc.MDSO 121,850, disposed Open Form 4 filing 0001181431-11-039828
2011-07-01 S, Open-market sale Medidata Solutions, Inc.MDSO 47,950, disposed Open Form 4 filing 0001181431-11-039828
2011-06-09 S, Open-market sale Medidata Solutions, Inc.MDSO 151,191, disposed Open Form 4 filing 0001181431-11-036341
2011-06-07 S, Open-market sale Medidata Solutions, Inc.MDSO 45,275, disposed Open Form 4 filing 0001181431-11-035511
2011-06-06 S, Open-market sale Medidata Solutions, Inc.MDSO 67,850, disposed Open Form 4 filing 0001181431-11-035511
2011-06-02 S, Open-market sale Medidata Solutions, Inc.MDSO 114,590, disposed Open Form 4 filing 0001181431-11-035511
2011-05-12 S, Open-market sale Medidata Solutions, Inc.MDSO 83,074, disposed Open Form 4 filing 0001181431-11-029266
2011-05-11 S, Open-market sale Medidata Solutions, Inc.MDSO 139,640, disposed Open Form 4 filing 0001181431-11-029266
2011-05-09 S, Open-market sale Medidata Solutions, Inc.MDSO 64,915, disposed Open Form 4 filing 0001181431-11-028549
2011-05-06 S, Open-market sale Medidata Solutions, Inc.MDSO 50,160, disposed Open Form 4 filing 0001181431-11-028549
2011-05-04 S, Open-market sale Medidata Solutions, Inc.MDSO 65,750, disposed Open Form 4 filing 0001181431-11-028062
2011-04-11 S, Open-market sale Medidata Solutions, Inc.MDSO 127,238, disposed Open Form 4 filing 0001181431-11-023471
2011-04-07 S, Open-market sale Medidata Solutions, Inc.MDSO 156,163, disposed Open Form 4 filing 0001181431-11-023471
2011-04-05 S, Open-market sale Medidata Solutions, Inc.MDSO 76,700, disposed Open Form 4 filing 0001181431-11-022797
2011-04-04 S, Open-market sale Medidata Solutions, Inc.MDSO 70,747, disposed Open Form 4 filing 0001181431-11-022797
2011-03-08 S, Open-market sale Medidata Solutions, Inc.MDSO 178,702, disposed Open Form 4 filing 0001181431-11-016621
2011-03-04 S, Open-market sale Medidata Solutions, Inc.MDSO 53,260, disposed Open Form 4 filing 0001181431-11-016621
2011-03-03 S, Open-market sale Medidata Solutions, Inc.MDSO 53,240, disposed Open Form 4 filing 0001181431-11-015349
2011-03-02 S, Open-market sale Medidata Solutions, Inc.MDSO 52,721, disposed Open Form 4 filing 0001181431-11-015349
2011-03-01 S, Open-market sale Medidata Solutions, Inc.MDSO 105,350, disposed Open Form 4 filing 0001181431-11-015349
2011-02-07 S, Open-market sale Medidata Solutions, Inc.MDSO 292,499, disposed Open Form 4 filing 0001181431-11-007933
2011-02-04 S, Open-market sale Medidata Solutions, Inc.MDSO 56,365, disposed Open Form 4 filing 0001181431-11-007933
2011-02-02 S, Open-market sale Medidata Solutions, Inc.MDSO 75,441, disposed Open Form 4 filing 0001181431-11-007164
2011-01-10 S, Open-market sale Medidata Solutions, Inc.MDSO 190,172, disposed Open Form 4 filing 0001181431-11-002779
2011-01-07 S, Open-market sale Medidata Solutions, Inc.MDSO 144,454, disposed Open Form 4 filing 0001181431-11-002779
2011-01-03 S, Open-market sale Medidata Solutions, Inc.MDSO 72,903, disposed Open Form 4 filing 0001181431-11-001813
2010-12-08 S, Open-market sale Medidata Solutions, Inc.MDSO 122,719, disposed Open Form 4 filing 0001181431-10-060229
2010-12-07 S, Open-market sale Medidata Solutions, Inc.MDSO 20,747, disposed Open Form 4 filing 0001181431-10-060229
2010-12-06 S, Open-market sale Medidata Solutions, Inc.MDSO 41,458, disposed Open Form 4 filing 0001181431-10-060229
2010-12-03 S, Open-market sale Medidata Solutions, Inc.MDSO 185,264, disposed Open Form 4 filing 0001181431-10-059293
2010-12-01 S, Open-market sale Medidata Solutions, Inc.MDSO 41,400, disposed Open Form 4 filing 0001181431-10-059293
2010-11-19 S, Open-market sale Medidata Solutions, Inc.MDSO 288,914, disposed Open Form 4 filing 0001181431-10-057060
2010-11-18 S, Open-market sale Medidata Solutions, Inc.MDSO 57,000, disposed Open Form 4 filing 0001181431-10-057060
2010-11-15 S, Open-market sale Medidata Solutions, Inc.MDSO 38,587, disposed Open Form 4 filing 0001181431-10-056236
2009-12-09 S, Open-market sale Medidata Solutions, Inc.MDSO 2,055,375, disposed Open Form 4 filing 0001181431-09-056074

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
D, Director
Director

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.

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 98
  • 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. Sherif Tarek, insider transactions. Retrieved 2026-08-23 from https://ebomi.com/insider/0001466275

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

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