Michael N Murdock
CIK 1316102 · EVP, Mergers and Acquisitions · last filed 2026-03-05
"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
$2.65M
Companies
2
Total Filings
43
Lifetime Open-Market Net
-$5.86M
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 |
|---|---|---|---|---|---|---|---|
| RDNT | EVP, Mergers and Acquisitions | 46,697 | $56.71 | $2.65M | -$4.83M | 30 | 2026-03-05 |
| RadNet, Inc. (ROIAK) Delisted | Executive Vice President | 226,728 | — | — | -$1.03M | 13 | 2017-02-03 |
Recent Filings · Page 4 of 5
43 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2017-02-03 | RadNet, Inc. (ROIAK) Delisted | Grant (A) | +25,000 | $0 | EDGAR |
| 2016-01-13 | RadNet, Inc. (ROIAK) Delisted | Grant (A) | +25,000 | $0 | EDGAR |
| 2015-12-16 | RadNet, Inc. (ROIAK) Delisted | Sell (S) | −72,861 | -$446.0K | EDGAR |
| 2015-12-11 | RadNet, Inc. (ROIAK) Delisted | Sell (S) | −771 | -$5.1K | EDGAR |
| 2015-12-10 | RadNet, Inc. (ROIAK) Delisted | Sell (S) | −25,000 | -$155.5K | EDGAR |
| 2015-08-14 | RadNet, Inc. (ROIAK) Delisted | Mixed | +69,528 | $0 | EDGAR |
| 2015-03-31 | RadNet, Inc. (ROIAK) Delisted | Mixed | +68,160 | $0 | EDGAR |
| 2015-01-05 | RadNet, Inc. (ROIAK) Delisted | Grant (A) | +25,000 | $0 | EDGAR |
| 2014-12-05 | RadNet, Inc. (ROIAK) Delisted | Sell (S) | −13,800 | -$115.2K | EDGAR |
| 2014-12-05 | RadNet, Inc. (ROIAK) Delisted | Sell (S) | −37,039 | -$305.6K | EDGAR |
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.