Insider Trading & Ownership of Michael L. Speiser

Location
Palo Alto, CA
Summary
The estimated net worth of Michael L. Speiser is at least $871,579,356 dollars as of 04 May 2026. Michael L. Speiser is the Director of Snowflake Inc. and owns shares of Snowflake Inc. (SNOW) stock worth about $869.86M. Michael L. Speiser is the Director of Workday, Inc. and owns shares of Workday, Inc. (WDAY) stock worth about $1.72M.
Signature
/s/ Marie Reider, Attorney-in-Fact
All Insider Reports
All Insider Reports

Follow Filing Activity

Follow Michael L. Speiser and return when a new Insider Trading filing changes the record on this page.

This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean. If you create an account from here, we will bring you back after verification.

Create free account and return here Already have an account? Sign in and return here

Quick Takeaways

  • Michael L. Speiser has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $871,579,356.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Snowflake Inc. ($869,862,839).
  • Past-year value change for that position: -$123,909,063.

Why This Matters

  • This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
  • You can cross-check role, issuer, and filing chronology directly against the SEC source.

Source Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of Michael L. Speiser

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
SNOW Snowflake Inc. Director $869,862,839 -$123,909,063 -12% 01 May 2026
WDAY Workday, Inc. Director $1,716,517 04 Jun 2025

Insider Transactions Reported by Michael L. Speiser:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Here you can make detailed settings or revoke your consent (in part if necessary) with effect for the future. For further information, please refer to our Privacy Policy .