Insider Trading & Ownership of Timothy A. Springer

Location
Chestnut Hill, MA
Summary
The estimated net worth of Timothy A. Springer is at least $179,666,129 dollars as of 06 Jan 2026. Timothy A. Springer is the Director, 10%+ Owner of Tectonic Therapeutic, Inc. and owns shares of Tectonic Therapeutic, Inc. (TECX) stock worth about $98.26M. Timothy A. Springer is the Director, 10%+ Owner of Cartesian Therapeutics, Inc. and owns shares of Cartesian Therapeutics, Inc. (RNAC) stock worth about $81.41M.
Signature
/s/ Matthew Bartholomae, Attorney-in-Fact for Timothy A. Springer
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Quick Takeaways

  • Timothy A. Springer has 3 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $179,666,129.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Tectonic Therapeutic, Inc. ($98,256,953).
  • Past-year value change for that position: .

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 Timothy A. Springer

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
TECX Tectonic Therapeutic, Inc. Director, 10%+ Owner $98,256,953 09 Jun 2025
RNAC Cartesian Therapeutics, Inc. Director, 10%+ Owner $81,409,176 02 Jan 2026
MORF Morphic Holding, Inc. Director, 10%+ Owner $0 16 Aug 2024

Insider Transactions Reported by Timothy A. Springer:

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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