Quick Takeaways
- Gail Boxer Marcus has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $1,548,587.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Gail Boxer Marcus
- Location
- Austin, TX
- Summary
- The estimated net worth of Gail Boxer Marcus is at least $1,548,587 dollars as of 03 Feb 2026. Gail Boxer Marcus is the Director of Natera, Inc. and owns shares of Natera, Inc. (NTRA) stock worth about $1.55M.
- Signature
- /s/ Tami Chen, Attorney-in-Fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Gail Boxer Marcus 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: Natera, Inc. ($1,548,587).
- Past-year value change for that position: -$2,340,322.
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 Gail Boxer Marcus
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| NTRA | Natera, Inc. | Director | $1,548,587 | -$2,340,322 | -60% | 30 Jan 2026 |
| GTS | TRIPLE-S MANAGEMENT CORP | Director | 01 Feb 2022 |
Insider Transactions Reported by Gail Boxer Marcus:
| 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.