Insider · CIK 0001378552

Krupke William F

CIK 0001378552 Name as filed on the most recent filing

Filed as Krupke William F (17)

20 transaction lines · from 17 filings · filed 2008-01-16 to 2014-02-20 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.

20 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
2014-02-19 S, Open-market sale IPG Photonics CorpIPGP 459,890, disposed Open Form 4 filing 0001111928-14-000007
2013-02-14 S, Open-market sale IPG Photonics CorpIPGP 44,386, disposed Open Form 4 filing 0001111928-13-000051
2012-08-01 S, Open-market sale IPG Photonics CorpIPGP 263,473, disposed Open Form 4 filing 0001181431-12-043312
2012-03-13 S, Open-market sale IPG Photonics CorpIPGP 2 lines 454,923, disposed Open Form 4 filing 0001111928-12-000056
2010-08-24 S, Open-market sale IPG Photonics CorpIPGP 458,768, disposed Open Form 4 filing 0001111928-10-000106
2009-12-07 S, Open-market sale IPG Photonics CorpIPGP 327,812, disposed Open Form 4 filing 0001111928-09-000116
2009-12-04 S, Open-market sale IPG Photonics CorpIPGP 6,505, disposed Open Form 4 filing 0001111928-09-000116
2009-09-09 S, Open-market sale IPG Photonics CorpIPGP 153,860, disposed Open Form 4 filing 0001111928-09-000080
2009-09-08 S, Open-market sale IPG Photonics CorpIPGP 95,013, disposed Open Form 4 filing 0001111928-09-000080
2009-08-26 S, Open-market sale IPG Photonics CorpIPGP 1,250, disposed Open Form 4 filing 0001111928-09-000078
2008-09-02 S, Open-market sale IPG Photonics CorpIPGP 75,240, acquired Open Form 4 filing 0001111928-08-000126
2008-08-06 S, Open-market sale IPG Photonics CorpIPGP 147,600, disposed Open Form 4 filing 0001111928-08-000116
2008-06-03 S, Open-market sale IPG Photonics CorpIPGP 71,460, disposed Open Form 4 filing 0001111928-08-000082
2008-05-06 S, Open-market sale IPG Photonics CorpIPGP 281,088, disposed Open Form 4 filing 0001111928-08-000046
2008-01-14 S, Open-market sale IPG Photonics CorpIPGP 190,700, disposed Open Form 4 filing 0001111928-08-000008
2002-02-14 S, Open-market sale IPG Photonics CorpIPGP 44,386, disposed Open Form 4 filing 0001111928-13-000026
2001-10-01 S, Open-market sale IPG Photonics CorpIPGP 286,558, disposed Open Form 4 filing 0001111928-12-000115
2001-09-04 S, Open-market sale IPG Photonics CorpIPGP 311,460, disposed Open Form 4 filing 0001111928-12-000091
2001-07-25 S, Open-market sale IPG Photonics CorpIPGP 225,505, disposed Open Form 4 filing 0001111928-12-000074

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. 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 20
  • 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. Krupke William F, insider transactions. Retrieved 2026-08-23 from https://ebomi.com/insider/0001378552

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

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