Insider Trading & Ownership of Stephen A. Sherwin

Location
San Diego, CA
Summary
The estimated net worth of Stephen A. Sherwin is at least $3,451,155 dollars as of 03 Sep 2025. Stephen A. Sherwin is the Director of BIOGEN INC. and owns shares of BIOGEN INC. (BIIB) stock worth about $1.74M. Stephen A. Sherwin is the Director of NEUROCRINE BIOSCIENCES INC and owns shares of NEUROCRINE BIOSCIENCES INC (NBIX) stock worth about $1.72M.
Signature
/s/ Darin Lippoldt, Attorney-in-Fact
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Quick Takeaways

  • Stephen A. Sherwin has 4 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $3,451,155.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: BIOGEN INC. ($1,735,912).
  • 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 Stephen A. Sherwin

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
BIIB BIOGEN INC. Director $1,735,912 17 Jun 2025
NBIX NEUROCRINE BIOSCIENCES INC Director $1,715,243 02 Sep 2025
BIOS BioPlus Acquisition Corp. Director 02 Dec 2021
EPHY Epiphany Technology Acquisition Corp. Director 16 Sep 2022

Insider Transactions Reported by Stephen A. Sherwin:

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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