Insider · CIK 0001433644

Speiser Michael L

CIK 0001433644 Name as filed on the most recent filing

Filed as Speiser Michael L (65)

435 transaction lines · from 65 filings · filed 2008-05-14 to 2026-08-11 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.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

426 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 2026-08-28 05:24 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2021-08-27 S, Open-market sale Snowflake Inc.SNOW 17,240,441, disposed Open Form 4 filing 0001225208-21-011871
2021-08-27 S, Open-market sale Snowflake Inc.SNOW 2,760,651, disposed Open Form 4 filing 0001225208-21-011871
2021-03-09 S, Open-market sale Snowflake Inc.SNOW 2 lines 142,350,000, disposed Open Form 4 filing 0001225208-21-005142
2018-07-09 S, Open-market sale Pure Storage, Inc.PSTG 3 lines 103,756,536, disposed Open Form 4 filing 0001225208-18-011607
2018-07-05 S, Open-market sale Pure Storage, Inc.PSTG 2 lines 9,480,720, disposed Open Form 4 filing 0001225208-18-011481
2018-07-03 S, Open-market sale Pure Storage, Inc.PSTG 2 lines 9,540,480, disposed Open Form 4 filing 0001225208-18-011481
2018-07-02 P, Open-market purchase Forty Seven, Inc.FTSV 2 lines 2,247,680, acquired Open Form 4 filing 0001225208-18-011386
2018-07-02 S, Open-market sale Pure Storage, Inc.PSTG 4 lines 9,525,176, disposed Open Form 4 filing 0001225208-18-011481
2018-06-20 S, Open-market sale Pure Storage, Inc.PSTG 1,219,595, disposed Open Form 4 filing 0001225208-18-010802
2018-06-19 S, Open-market sale Pure Storage, Inc.PSTG 1,220,555, disposed Open Form 4 filing 0001225208-18-010802
2018-06-18 S, Open-market sale Pure Storage, Inc.PSTG 2 lines 1,237,051, disposed Open Form 4 filing 0001225208-18-010802
2018-06-12 S, Open-market sale Pure Storage, Inc.PSTG 5,756,256, disposed Open Form 4 filing 0001225208-18-010692
2018-06-06 S, Open-market sale Pure Storage, Inc.PSTG 1,173,125, disposed Open Form 4 filing 0001225208-18-010267
2018-06-05 S, Open-market sale Pure Storage, Inc.PSTG 1,152,745, disposed Open Form 4 filing 0001225208-18-010267
2018-06-04 S, Open-market sale Pure Storage, Inc.PSTG 1,132,370, disposed Open Form 4 filing 0001225208-18-010267
2018-05-23 S, Open-market sale Pure Storage, Inc.PSTG 1,084,925, disposed Open Form 4 filing 0001225208-18-009786
2018-05-22 S, Open-market sale Pure Storage, Inc.PSTG 3 lines 1,106,043, disposed Open Form 4 filing 0001225208-18-009786
2018-05-21 S, Open-market sale Pure Storage, Inc.PSTG 1,178,860, disposed Open Form 4 filing 0001225208-18-009786
2018-05-09 S, Open-market sale Pure Storage, Inc.PSTG 1,146,250, disposed Open Form 4 filing 0001225208-18-009006
2018-05-08 S, Open-market sale Pure Storage, Inc.PSTG 1,109,620, disposed Open Form 4 filing 0001225208-18-009006
2018-05-07 S, Open-market sale Pure Storage, Inc.PSTG 2 lines 1,110,303, disposed Open Form 4 filing 0001225208-18-009006
2018-04-25 S, Open-market sale Pure Storage, Inc.PSTG 1,013,515, disposed Open Form 4 filing 0001225208-18-008034
2018-04-24 S, Open-market sale Pure Storage, Inc.PSTG 1,026,135, disposed Open Form 4 filing 0001225208-18-008034
2018-04-23 S, Open-market sale Pure Storage, Inc.PSTG 1,026,555, disposed Open Form 4 filing 0001225208-18-008034
2017-06-01 P, Open-market purchase Mattersight CorpMATR 2 lines 752,694, acquired Open Form 4 filing 0001225208-17-010833
2015-11-09 S, Open-market sale Mattersight CorpMATR 7,290,000, disposed Open Form 4 filing 0001225208-15-020841
2014-10-01 S, Open-market sale Threshold Pharmaceuticals IncTHLD 2 lines 857,104, disposed Open Form 4 filing 0001225208-14-021201
2014-06-20 S, Open-market sale Threshold Pharmaceuticals IncTHLD 2 lines 56,065, disposed Open Form 4 filing 0001225208-14-015510
2014-06-12 S, Open-market sale Mattersight CorpMATR 2 lines 105,984, disposed Open Form 4 filing 0001225208-14-015131
2013-12-03 P, Open-market purchase Mattersight CorpMATR 2 lines 883,545, acquired Open Form 4 filing 0001225208-13-024850
2013-05-31 S, Open-market sale Threshold Pharmaceuticals IncTHLD 2 lines 1,495,384, disposed Open Form 4 filing 0001225208-13-013890

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
D, Director
Director
%, 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. 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 33
  • Open-market sale 393
  • 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. Speiser Michael L, insider transactions. Retrieved 2026-08-28 from https://ebomi.com/insider/0001433644

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

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