DERMOT MARK DURCAN
CIK 1202358 · Chief Executive Officer · last filed 2026-06-22
"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.
Loading insider history…
Disclosed Exposure
$1.95B
Companies
7
Total Filings
104
Lifetime Open-Market Net
$2.55M
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 |
|---|---|---|---|---|---|---|---|
| COR | Director | 31,767 | $320.46 | $10.18M | $2.27M | 6 | 2026-06-22 |
| AMD | Director | — | $483.36 | — | $0 | 8 | 2024-05-10 |
| Cencora, Inc. (ABC) Delisted | Director | 18,730 | $179.98 | $3.37M | $301.3K | 24 | 2023-03-13 |
| Veoneer, Inc. (VNE) Delisted | Director | 25,911 | $36.95 | $957.4K | $0 | 2 | 2021-05-11 |
| MU | Chief Executive Officer | 2,213,953 | $877.57 | $1.94B | -$24.0K | 56 | 2016-11-09 |
| Freescale Semiconductor, Ltd. (FSL) Delisted | Director | 11,663 | — | — | $0 | 2 | 2015-06-09 |
| MWI Veterinary Supply, Inc. (MWIV) Delisted | Director | 1,000 | — | — | $0 | 2 | 2015-02-25 |
Recent Filings · Page 8 of 11
104 filingsInsider 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 |
|---|---|---|---|---|---|
| 2011-10-13 | MU | Mixed | +482,523 | -$43.7K | EDGAR |
| 2011-10-11 | MU | Tax (F) | −11,893 | -$58.9K | EDGAR |
| 2011-10-06 | MU | Tax (F) | −8,649 | -$39.1K | EDGAR |
| 2011-10-04 | MU | Tax (F) | −14,300 | -$72.1K | EDGAR |
| 2011-08-29 | MU | Tax (F) | −3,854 | -$21.8K | EDGAR |
| 2010-10-13 | MU | Mixed | +167,245 | -$423.2K | EDGAR |
| 2010-10-08 | MU | Tax (F) | −15,365 | -$109.2K | EDGAR |
| 2010-10-06 | MU | Tax (F) | −11,174 | -$78.1K | EDGAR |
| 2010-10-05 | MU | Tax (F) | −18,475 | -$134.7K | EDGAR |
| 2010-09-27 | MU | Tax (F) | −9,625 | -$69.3K | EDGAR |
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.
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.