Quick Takeaways
- Robin Matlock has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $3,207,731.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Robin Matlock
- Location
- Portsmouth, NH
- Summary
- The estimated net worth of Robin Matlock is at least $3,207,731 dollars as of 03 Mar 2026. Robin Matlock is the Director of IRON MOUNTAIN INC and owns shares of IRON MOUNTAIN INC (IRM) stock worth about $2.37M. Robin Matlock is the Director of MSCI Inc. and owns shares of MSCI Inc. (MSCI) stock worth about $837.9K.
- Signature
- /s/ Cecilia Aza, attorney-in-fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Robin Matlock 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: IRON MOUNTAIN INC ($2,369,849).
- 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 Robin Matlock
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| IRM | IRON MOUNTAIN INC | Director | $2,369,849 | 21 Jan 2026 | ||
| MSCI | MSCI Inc. | Director | $837,882 | 27 Feb 2026 |
Insider Transactions Reported by Robin Matlock:
| 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.