Brennan Daniel J.

Director · Officer · MDGL, WAT, BSX

As of 2026-09-16, Brennan Daniel J. has 44 Form 4 transactions on record across 3 companies — 6 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $2.0MIndirect: $0$2.0Mas of 2026-09-16
  • Direct $2.0M
  • Indirect $0
BSXdirect37,067 sh$1.6M
MDGLdirect681 sh$360K
WATdirect57 sh$24K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

BSX · 34 trades
2025-02-19: Sale, 67,333 sh ($7.1M)2025-02-19: Option exercise, 18,533 sh ($455K)2025-02-19: Option exercise, 15,642 sh ($424K)2025-02-19: Option exercise, 9,483 sh ($380K)2025-02-19: Option exercise, 16,865 sh ($291K)2025-02-19: Option exercise, 18,533 sh ($0)2025-02-19: Option exercise, 16,865 sh ($0)2025-02-19: Option exercise, 9,483 sh ($0)2025-02-19: Option exercise, 15,642 sh ($0)2025-02-18: Sale, 14,630 sh ($1.5M)2025-02-18: Sale, 2,900 sh ($302K)2025-02-17: Withheld for tax, 2,217 sh ($235K)2025-02-17: Option exercise, 4,584 sh ($0)2025-02-17: Option exercise, 4,584 sh ($0)2025-02-16: Withheld for tax, 2,052 sh ($218K)2025-02-16: Option exercise, 4,243 sh ($0)2025-02-16: Option exercise, 4,243 sh ($0)2025-02-14: Withheld for tax, 2,110 sh ($224K)2025-02-14: Option exercise, 4,362 sh ($0)2025-02-14: Option exercise, 4,362 sh ($0)2025-02-13: Award / grant, 23,031 sh ($0)2025-02-13: Award / grant, 8,950 sh ($0)2025-02-12: Sale, 15,087 sh ($1.6M)2025-02-12: Option exercise, 15,087 sh ($246K)2025-02-12: Withheld for tax, 1,767 sh ($187K)2025-02-12: Option exercise, 3,654 sh ($0)2025-02-12: Option exercise, 3,654 sh ($0)2025-02-12: Option exercise, 15,087 sh ($0)2025-02-11: Withheld for tax, 16,414 sh ($1.7M)2025-02-11: Award / grant, 33,944 sh ($0)2025-01-03: Sale, 9,689 sh ($871K)2025-01-01: Withheld for tax, 5,212 sh ($466K)2025-01-01: Option exercise, 14,901 sh ($0)2025-01-01: Option exercise, 14,901 sh ($0)
WAT · 6 trades
2026-02-25: Award / grant, 23 sh ($0)2026-02-25: Award / grant, 57 sh ($0)2026-01-02: Award / grant, 307 sh ($0)2026-01-02: Award / grant, 828 sh ($0)2025-01-02: Award / grant, 818 sh ($0)2025-01-02: Award / grant, 319 sh ($0)
MDGL · 4 trades
2026-06-17: Award / grant, 404 sh ($0)2026-06-17: Award / grant, 681 sh ($0)2025-08-01: Award / grant, 1,705 sh ($0)2025-08-01: Award / grant, 967 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-02-19BSXSale67,333 @ $105.24$7.1M−23.0% of holding225,808Form 4
2025-02-18BSXSale14,630 @ $104.67$1.5M−5.9% of holding232,618Form 4
2025-02-18BSXSale2,900 @ $104.08$302K−1.2% of holding247,248Form 4
2025-02-12BSXSale15,087 @ $105.07$1.6M−5.9% of holding241,451Form 4
2025-01-03BSXSale9,689 @ $89.86$871K−4.1% of holding223,921Form 4
39 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-17MDGLAward / grant4041,371Form 4
2026-06-17MDGLAward / grant681681Form 4
2026-02-25WATAward / grant231,355Form 4
2026-02-25WATAward / grant5757Form 4
2026-01-02WATAward / grant3071,332Form 4
2026-01-02WATAward / grant828828Form 4
2025-08-01MDGLAward / grant1,7051,705Form 4
2025-08-01MDGLAward / grant967967Form 4
2025-02-19BSXOption exercise18,533251,151Form 4
2025-02-19BSXOption exercise15,642283,658Form 4
2025-02-19BSXOption exercise9,483293,141Form 4
2025-02-19BSXOption exercise16,865268,016Form 4
2025-02-19BSXOption exercise18,53337,067Form 4
2025-02-19BSXOption exercise16,8650Form 4
2025-02-19BSXOption exercise9,48337,934Form 4
2025-02-19BSXOption exercise15,64231,285Form 4
2025-02-17BSXWithheld for tax2,217250,148Form 4
2025-02-17BSXOption exercise4,5840Form 4
2025-02-17BSXOption exercise4,584252,365Form 4
2025-02-16BSXWithheld for tax2,052247,781Form 4
2025-02-16BSXOption exercise4,243249,833Form 4
2025-02-16BSXOption exercise4,2434,243Form 4
2025-02-14BSXWithheld for tax2,110245,590Form 4
2025-02-14BSXOption exercise4,3628,725Form 4
2025-02-14BSXOption exercise4,362247,700Form 4
2025-02-13BSXAward / grant23,03123,031Form 4
2025-02-13BSXAward / grant8,9508,950Form 4
2025-02-12BSXOption exercise15,087256,538Form 4
2025-02-12BSXWithheld for tax1,767243,338Form 4
2025-02-12BSXOption exercise3,65410,963Form 4
2025-02-12BSXOption exercise3,654245,105Form 4
2025-02-12BSXOption exercise15,0870Form 4
2025-02-11BSXWithheld for tax16,414241,451Form 4
2025-02-11BSXAward / grant33,944257,865Form 4
2025-01-02WATAward / grant818818Form 4
2025-01-02WATAward / grant3191,025Form 4
2025-01-01BSXWithheld for tax5,212233,610Form 4
2025-01-01BSXOption exercise14,901238,822Form 4
2025-01-01BSXOption exercise14,9010Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.