Insider Trading & Ownership of Jack R. Lazar

Location
Austin, TX
Summary
The estimated net worth of Jack R. Lazar is at least $18,389,134 dollars as of 03 Apr 2026. Jack R. Lazar is the Director of Astera Labs, Inc. and owns shares of Astera Labs, Inc. (ALAB) stock worth about $11.03M. Jack R. Lazar is the Director of RESIDEO TECHNOLOGIES, INC. and owns shares of RESIDEO TECHNOLOGIES, INC. (REZI) stock worth about $4.1M. Jack R. Lazar is the Director of SILICON LABORATORIES INC. and owns shares of SILICON LABORATORIES INC. (SLAB) stock worth about $1.13M. Jack R. Lazar is the Director of GLOBALFOUNDRIES Inc. and owns shares of GLOBALFOUNDRIES Inc. (GFS) stock worth about $1.04M. Jack R. Lazar is the Director of BOX INC and owns shares of BOX INC (BOX) stock worth about $805.5K. Jack R. Lazar is the Director of ThredUp Inc. and owns shares of ThredUp Inc. (TDUP) stock worth about $281K.
Signature
/s/ Jeannine J. Lane, as Attorney-in-Fact for Jack R. Lazar
All Insider Reports
All Insider Reports

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Quick Takeaways

  • Jack R. Lazar has 7 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $18,389,134.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Astera Labs, Inc. ($11,030,630).
  • Past-year value change for that position: -$5,611,743.

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 Jack R. Lazar

ALAB Forms 3/4/5

Astera Labs, Inc.

Relationship
Director
Holdings value
$11,030,630
Past year net change
-$5,611,743
Change %
-34%
Report period
16 Mar 2026
GFS Forms 3/4/5

GLOBALFOUNDRIES Inc.

Relationship
Director
Holdings value
$1,040,522
Past year net change
Change %
Report period
17 Mar 2026
BOX, BXCAP Forms 3/4/5

BOX INC

Relationship
Director
Holdings value
$805,477
Past year net change
-$240,395
Change %
-23%
Report period
04 Dec 2025
TDUP Forms 3/4/5

ThredUp Inc.

Relationship
Director
Holdings value
$281,019
Past year net change
Change %
Report period
03 Sep 2024
CSPR Forms 3/4/5

Casper Sleep Inc.

Relationship
Director
Holdings value
Past year net change
Change %
Report period
25 Jan 2022

Insider Transactions Reported by Jack R. Lazar:

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.
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