Insider · CIK 0001255910

Welton Mark

CIK 0001255910 Name as filed on the most recent filing

Filed as Welton Mark (33)

37 transaction lines · from 33 filings · filed 2008-03-27 to 2025-12-15 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.

37 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
2025-12-15 S, Open-market sale Imax CorpIMAX 982,000, disposed Open Form 4 filing 0001214659-25-018011
2025-11-10 S, Open-market sale Imax CorpIMAX 1,743,927, disposed Open Form 4 filing 0001214659-25-016179
2024-12-09 S, Open-market sale Imax CorpIMAX 1,005,741, disposed Open Form 4 filing 0001214659-24-020100
2023-03-07 S, Open-market sale Imax CorpIMAX 366,976, disposed Open Form 4 filing 0001214659-23-003711
2021-12-02 S, Open-market sale Imax CorpIMAX 2 lines 179,073, disposed Open Form 4 filing 0001214659-21-012708
2021-12-01 S, Open-market sale Imax CorpIMAX 161,959, disposed Open Form 4 filing 0001214659-21-012708
2021-03-11 S, Open-market sale Imax CorpIMAX 113,465, disposed Open Form 4 filing 0001214659-21-003080
2020-03-17 P, Open-market purchase Imax CorpIMAX 37,085, acquired Open Form 4 filing 0001214659-20-002703
2020-03-09 S, Open-market sale Imax CorpIMAX 174,463, disposed Open Form 4 filing 0001214659-20-002494
2019-12-02 S, Open-market sale Imax CorpIMAX 60,145, disposed Open Form 4 filing 0001214659-19-007558
2019-04-29 S, Open-market sale Imax CorpIMAX 372,474, disposed Open Form 4 filing 0001214659-19-003104
2019-03-08 S, Open-market sale Imax CorpIMAX 193,784, disposed Open Form 4 filing 0001214659-19-002034
2018-07-27 S, Open-market sale Imax CorpIMAX 217,600, disposed Open Form 4 filing 0001214659-18-005069
2018-03-08 S, Open-market sale Imax CorpIMAX 86,204, disposed Open Form 4 filing 0001214659-18-002012
2017-12-04 S, Open-market sale Imax CorpIMAX 65,767, disposed Open Form 4 filing 0001214659-17-007185
2017-11-29 S, Open-market sale Imax CorpIMAX 231,946, disposed Open Form 4 filing 0001214659-17-007082
2017-03-08 S, Open-market sale Imax CorpIMAX 134,512, disposed Open Form 4 filing 0001214659-17-001797
2016-12-02 S, Open-market sale Imax CorpIMAX 89,114, disposed Open Form 4 filing 0001214659-16-015318
2016-12-02 S, Open-market sale Imax CorpIMAX 93,519, disposed Open Form 4 filing 0001214659-16-015189
2016-03-08 S, Open-market sale Imax CorpIMAX 157,670, disposed Open Form 4 filing 0001214659-16-010205
2015-12-17 S, Open-market sale Imax CorpIMAX 586,241, disposed Open Form 4 filing 0001214659-15-008484
2015-11-02 S, Open-market sale Imax CorpIMAX 963,820, disposed Open Form 4 filing 0001214659-15-007478
2015-03-09 S, Open-market sale Imax CorpIMAX 2 lines 135,806, disposed Open Form 4 filing 0001214659-15-002179
2015-02-24 S, Open-market sale Imax CorpIMAX 349,700, disposed Open Form 4 filing 0001214659-15-001728
2014-10-24 S, Open-market sale Imax CorpIMAX 1,010,100, disposed Open Form 4 filing 0001214659-14-007234
2014-03-13 S, Open-market sale Imax CorpIMAX 48,249, disposed Open Form 4 filing 0001214659-14-002038
2013-11-07 S, Open-market sale Imax CorpIMAX 590,600, disposed Open Form 4 filing 0001214659-13-006339
2013-02-22 S, Open-market sale Imax CorpIMAX 774,900, disposed Open Form 4 filing 0001179110-13-003576
2010-10-29 S, Open-market sale Imax CorpIMAX 217,400, disposed Open Form 4 filing 0001179110-10-015505
2010-01-08 S, Open-market sale Imax CorpIMAX 565,200, disposed Open Form 4 filing 0001179110-10-000807
2009-12-09 S, Open-market sale Imax CorpIMAX 2 lines 76,674, disposed Open Form 4 filing 0001179110-09-016825
2009-03-16 S, Open-market sale Imax CorpIMAX 65,490, disposed Open Form 4 filing 0001179110-09-005264
2008-03-25 S, Open-market sale Imax CorpIMAX 103,950, disposed Open Form 4 filing 0001179110-08-006694
2008-03-25 S, Open-market sale Imax CorpIMAX 103,950, disposed Open Form 4 filing 0001179110-08-006635

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
P, Open-market purchase
Open-market purchase
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 1
  • Open-market sale 36
  • 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. WELTON MARK, insider transactions. Retrieved 2026-08-25 from https://ebomi.com/insider/0001255910

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

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