Quick Takeaways
- Mark Guinan has 3 issuer positions tracked on this page.
- Estimated disclosed ownership value: $13,206,112.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Mark Guinan
- Location
- Secaucus, NJ
- Summary
- The estimated net worth of Mark Guinan is at least $13,206,112 dollars as of 02 Feb 2024. Mark Guinan is the Executive Vice President & CFO of QUEST DIAGNOSTICS INC and owns shares of QUEST DIAGNOSTICS INC (DGX) stock worth about $13.11M. Mark Guinan is the Director of UpHealth, Inc. and owns shares of UpHealth, Inc. stock worth about $98K.
- Signature
- /s/ Mark Guinan
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Mark Guinan and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: QUEST DIAGNOSTICS INC ($13,108,142).
- 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
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Mark Guinan
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| DGX | QUEST DIAGNOSTICS INC | Executive Vice President & CFO | $13,108,142 | 07 Mar 2022 | ||
| UPHL | UpHealth, Inc. | Director | $97,970 | 31 Jan 2024 | ||
| MYOV | Myovant Sciences Ltd. | Director | 10 Mar 2023 |
Insider Transactions Reported by Mark Guinan:
| 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.