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Insider Trading & Ownership of Michael Vasconcelles

Location
Cambridge, MA
Summary
The estimated net worth of Michael Vasconcelles is at least $51,009 dollars as of 18 Feb 2026. Michael Vasconcelles is the Head of Research and Dev. of Day One Biopharmaceuticals, Inc. and owns shares of Day One Biopharmaceuticals, Inc. (DAWN) stock worth about $51K.
Signature
/s/ Charles N. York II, as Attorney-in-Fact
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Quick Takeaways

  • Michael Vasconcelles has 4 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $51,009.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Day One Biopharmaceuticals, Inc. ($51,009).
  • Past-year value change for that position: -$31,647.

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.

Official SEC Source

Filed on Form 4

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

See Original Filing

Ownership of Michael Vasconcelles

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
DAWN Day One Biopharmaceuticals, Inc. Head of Research and Dev. $51,009 -$31,647 -38% 15 Feb 2026
IMGN ImmunoGen, Inc. Evp R&D & Medical Affairs $0 12 Feb 2024
KURA Kura Oncology, Inc. Director 05 Jun 2025
DNTH Magenta Therapeutics, Inc. Director 15 Aug 2022

Insider Transactions Reported by Michael Vasconcelles:

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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