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MICHAEL W MICHELSON

CIK 1182415 · last filed 2026-04-30

MICHAEL W MICHELSON is a corporate insider who has filed 70 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing, for HCA, was dated Apr 30, 2026. Across all open-market trades the lifetime net is −$5.12B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $46.85B across reported positions. 48 SEC filings were submitted jointly with ZIMMER BIOMET HOLDINGS, INC.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$46.85B

Companies

6

Total Filings

70

Lifetime Open-Market Net

-$5.12B

Filer Profile

Reported Address
2800 SAND HILL ROAD
SUITE 200
MENLO PARK, CA 94025
Related Filers
ZIMMER BIOMET HOLDINGS, INC. — 48 joint filings, latest 2024-05-14
JOHANNES P HUTH — 27 joint filings, latest 2012-12-13
GEORGE R ROBERTS — 21 joint filings, latest 2009-07-16
HENRY R KRAVIS — 19 joint filings, latest 2009-07-16
MARC S LIPSCHULTZ — 16 joint filings, latest 2012-12-13
EDWARD A GILHULY — 12 joint filings, latest 2005-10-14
JAMES H GREENE JR — 11 joint filings, latest 2009-07-16
JOSEPH Y BAE — 9 joint filings, latest 2012-12-13
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
HCA Director 12,576 $405.00 $5.09M $0 10 2026-04-30
ZBH Director 3,385 $98.07 $332.0K $399.7K 47 2024-05-14
JAZZ Director 12,500 $246.81 $3.09M $0 7 2012-01-13
AVGO 10%+ Owner 130,842,480 $357.89 $46.83B -$2.74B 1 2010-12-14
ROC 10%+ Owner 3,354,108 $4.23 $14.19M -$2.38B 1 2007-11-20
AIQ Director 5,604 $64.32 $360.4K $0 3 2007-06-01

Recent Filings

70 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-04-30 HCA Grant (A) +925 $0 EDGAR
2025-05-01 HCA Grant (A) +1,173 $0 EDGAR
2024-05-14 ZBH Grant (A) — $0 EDGAR
2024-05-01 HCA Grant (A) +1,091 $0 EDGAR
2024-04-02 ZBH Grant (A) — $0 EDGAR
2024-01-03 ZBH Grant (A) — $0 EDGAR
2023-10-03 ZBH Grant (A) — $0 EDGAR
2023-08-29 ZBH Buy (P) +1,300 $150.2K EDGAR
2023-07-05 ZBH Grant (A) — $0 EDGAR
2023-05-16 ZBH Grant (A) — $0 EDGAR
Showing 1–10 of 70
Page 1 of 7
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.