Quick Takeaways
- Daniel J. Brennan has 4 issuer positions tracked on this page.
- Estimated disclosed ownership value: $25,557,597.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Daniel J. Brennan
- Location
- Marlborough, MA
- Summary
- The estimated net worth of Daniel J. Brennan is at least $25,557,597 dollars as of 27 Feb 2026. Daniel J. Brennan is the EVP and CFO of BOSTON SCIENTIFIC CORP and owns shares of BOSTON SCIENTIFIC CORP (BSX) stock worth about $24.73M. Daniel J. Brennan is the Director of WATERS CORP /DE/ and owns shares of WATERS CORP /DE/ (WAT) stock worth about $535.2K. Daniel J. Brennan is the Director of MADRIGAL PHARMACEUTICALS, INC. and owns shares of MADRIGAL PHARMACEUTICALS, INC. (MDGL) stock worth about $292.7K.
- Signature
- /s/ Michael Lynn, attorney-in-fact for Daniel Brennan
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Daniel J. Brennan and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: BOSTON SCIENTIFIC CORP ($24,729,761).
- 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.
Official SEC Source
Filed on Form 4
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
See Original FilingOwnership of Daniel J. Brennan
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| BSX | BOSTON SCIENTIFIC CORP | EVP and CFO | $24,729,761 | 18 Feb 2025 | ||
| WAT | WATERS CORP /DE/ | Director | $535,184 | 25 Feb 2026 | ||
| MDGL | MADRIGAL PHARMACEUTICALS, INC. | Director | $292,652 | 01 Aug 2025 | ||
| NUAN | Nuance Communications, Inc. | Director | 04 Mar 2022 |
Insider Transactions Reported by Daniel J. Brennan:
| 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.