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Insider · CIK 0001265181

Singer Karen

CIK 0001265181 Name as filed on the most recent filing

Filed as Singer Karen (264)

346 transaction lines · from 264 filings · filed 2007-11-28 to 2023-08-28 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.

346 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
2010-05-28 P, Open-market purchase Arbinet CorpARBX 77,920, acquired Open Form 4 filing 0001209191-10-031267
2010-05-27 P, Open-market purchase Arbinet CorpARBX 558, acquired Open Form 4 filing 0001209191-10-031000
2010-05-24 P, Open-market purchase Evolving Systems IncEVOL 643,945, acquired Open Form 4 filing 0001209191-10-030269
2010-05-24 P, Open-market purchase Arbinet CorpARBX 11,292, acquired Open Form 4 filing 0001209191-10-030268
2010-05-21 P, Open-market purchase Evolving Systems IncEVOL 239,047, acquired Open Form 4 filing 0001209191-10-029926
2010-05-20 P, Open-market purchase Evolving Systems IncEVOL 303,748, acquired Open Form 4 filing 0001209191-10-029632
2010-05-20 P, Open-market purchase Arbinet CorpARBX 1,850, acquired Open Form 4 filing 0001209191-10-029630
2010-05-19 P, Open-market purchase Arbinet CorpARBX 18,269, acquired Open Form 4 filing 0001209191-10-029241
2010-05-18 P, Open-market purchase Arbinet CorpARBX 64,384, acquired Open Form 4 filing 0001209191-10-028913
2010-05-17 P, Open-market purchase Evolving Systems IncEVOL 71,900, acquired Open Form 4 filing 0001209191-10-028527
2010-05-17 P, Open-market purchase Arbinet CorpARBX 1,930, acquired Open Form 4 filing 0001209191-10-028521
2010-05-14 P, Open-market purchase Arbinet CorpARBX 1,544, acquired Open Form 4 filing 0001209191-10-028161
2010-05-13 P, Open-market purchase Arbinet CorpARBX 384, acquired Open Form 4 filing 0001209191-10-028161
2010-05-12 P, Open-market purchase Arbinet CorpARBX 1,183, acquired Open Form 4 filing 0001209191-10-027549
2010-05-11 P, Open-market purchase Arbinet CorpARBX 1,176, acquired Open Form 4 filing 0001209191-10-027191
2010-05-11 P, Open-market purchase Evolving Systems IncEVOL 137,500, acquired Open Form 4 filing 0001209191-10-027190
2010-05-10 P, Open-market purchase Evolving Systems IncEVOL 84,569, acquired Open Form 4 filing 0001209191-10-026804
2010-05-10 P, Open-market purchase Arbinet CorpARBX 2,548, acquired Open Form 4 filing 0001209191-10-026798
2010-05-07 P, Open-market purchase Evolving Systems IncEVOL 44,138, acquired Open Form 4 filing 0001209191-10-026387
2010-05-06 P, Open-market purchase Arbinet CorpARBX 50,861, acquired Open Form 4 filing 0001209191-10-026024
2010-05-06 P, Open-market purchase Evolving Systems IncEVOL 300,651, acquired Open Form 4 filing 0001209191-10-026028
2010-05-05 P, Open-market purchase Arbinet CorpARBX 11,159, acquired Open Form 4 filing 0001209191-10-025720
2010-04-26 P, Open-market purchase Evolving Systems IncEVOL 35,561, acquired Open Form 4 filing 0001209191-10-023832
2010-04-22 P, Open-market purchase Evolving Systems IncEVOL 109,058, acquired Open Form 4 filing 0001209191-10-023478
2010-04-08 P, Open-market purchase Evolving Systems IncEVOL 110,188, acquired Open Form 4 filing 0001209191-10-021746
2010-04-05 P, Open-market purchase Evolving Systems IncEVOL 33,750, acquired Open Form 4 filing 0001209191-10-021055
2010-03-31 P, Open-market purchase Evolving Systems IncEVOL 100,995, acquired Open Form 4 filing 0001209191-10-019673
2010-03-26 P, Open-market purchase Evolving Systems IncEVOL 58,203, acquired Open Form 4 filing 0001209191-10-018982
2010-03-25 P, Open-market purchase Evolving Systems IncEVOL 19,503, acquired Open Form 4 filing 0001209191-10-018866
2010-03-22 P, Open-market purchase Arbinet CorpARBX 246,250, acquired Open Form 4 filing 0001209191-10-018386
2010-03-19 P, Open-market purchase Arbinet CorpARBX 20,000, acquired Open Form 4 filing 0001209191-10-018141
2010-03-19 P, Open-market purchase Evolving Systems IncEVOL 68,000, acquired Open Form 4 filing 0001209191-10-018142
2010-03-17 P, Open-market purchase Evolving Systems IncEVOL 34,000, acquired Open Form 4 filing 0001209191-10-017803
2010-03-16 P, Open-market purchase Evolving Systems IncEVOL 67,700, acquired Open Form 4 filing 0001209191-10-017543
2010-03-12 P, Open-market purchase Evolving Systems IncEVOL 300,348, acquired Open Form 4 filing 0001209191-10-016877
2010-03-11 P, Open-market purchase Evolving Systems IncEVOL 120,616, acquired Open Form 4 filing 0001209191-10-016585
2010-03-10 P, Open-market purchase Evolving Systems IncEVOL 25,795, acquired Open Form 4 filing 0001209191-10-016252
2010-03-09 P, Open-market purchase Evolving Systems IncEVOL 134,600, acquired Open Form 4 filing 0001209191-10-015971
2010-03-08 P, Open-market purchase Evolving Systems IncEVOL 8,815, acquired Open Form 4 filing 0001209191-10-015578
2010-03-02 P, Open-market purchase Arbinet CorpARBX 30,000, acquired Open Form 4 filing 0001209191-10-013947
2010-03-01 P, Open-market purchase Arbinet CorpARBX 4,950, acquired Open Form 4 filing 0001209191-10-013363
2010-02-25 P, Open-market purchase Arbinet CorpARBX 9,702, acquired Open Form 4 filing 0001209191-10-012922
2010-02-23 P, Open-market purchase Arbinet CorpARBX 20,200, acquired Open Form 4 filing 0001209191-10-011739
2010-02-22 P, Open-market purchase Arbinet CorpARBX 91,443, acquired Open Form 4 filing 0001209191-10-011381
2010-02-22 P, Open-market purchase Evolving Systems IncEVOL 615, acquired Open Form 4 filing 0001209191-10-011378
2010-02-19 P, Open-market purchase Evolving Systems IncEVOL 6,200, acquired Open Form 4 filing 0001209191-10-011120
2010-02-18 P, Open-market purchase Evolving Systems IncEVOL 17,700, acquired Open Form 4 filing 0001209191-10-010819
2010-02-16 P, Open-market purchase Arbinet CorpARBX 32,515, acquired Open Form 4 filing 0001209191-10-009976
2010-02-05 P, Open-market purchase Evolving Systems IncEVOL 9,671, acquired Open Form 4 filing 0001209191-10-007497
2010-01-27 P, Open-market purchase Evolving Systems IncEVOL 230,831, acquired Open Form 4 filing 0001209191-10-005235

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.

Search the catalog
Codes on this page
P, Open-market purchase
Open-market purchase
Relationships on this page
%, Ten percent owner
Ten percent owner

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 335
  • Open-market sale 11
  • 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. SINGER KAREN, insider transactions. Retrieved 2026-08-26 from https://ebomi.com/insider/0001265181

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

This page as JSON The JSON twin is shaped by the same read model as this page, so the two cannot disagree. Its envelope carries the canonical URL, the retrieval time, the coverage claim, and the licence statement.