Insider Trading & Ownership of Jeffrey S. Bornstein

Location
Boston, MA
Summary
The estimated net worth of Jeffrey S. Bornstein is at least $2,054,401 dollars as of 08 Dec 2025. Jeffrey S. Bornstein is the Director of Eos Energy Enterprises, Inc. and owns shares of Eos Energy Enterprises, Inc. (EOSE) stock worth about $1.97M. Jeffrey S. Bornstein is the Director of Allovir, Inc. and owns shares of Kalaris Therapeutics, Inc. (KLRS) stock worth about $87.3K.
Signature
/s/ Michael Silberman as attorney-in-fact for Jeffrey Bornstein
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Quick Takeaways

  • Jeffrey S. Bornstein has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $2,054,401.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Eos Energy Enterprises, Inc. ($1,967,092).
  • Past-year value change for that position: -$612,536.

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 Jeffrey S. Bornstein

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
EOSE Eos Energy Enterprises, Inc. Director $1,967,092 -$612,536 -24% 04 Dec 2025
KLRS Allovir, Inc. Director $87,309 06 Jun 2024

Insider Transactions Reported by Jeffrey S. Bornstein:

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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