MICHAEL D OHALLERAN
CIK 1023265 · Senior Exec VP · last filed 2026-04-30
"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
$31.39M
Companies
5
Total Filings
45
Lifetime Open-Market Net
-$2.46M
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 |
|---|---|---|---|---|---|---|---|
| RYAN | Director | 820,915 | $35.64 | $29.26M | $5.68M | 9 | 2026-04-30 |
| NUVASIVE INC (NUVA) Delisted | Director | 29,111 | $39.75 | $1.16M | $494.8K | 9 | 2019-05-10 |
| CAREFUSION Corp (CFN) Delisted | Director | 49,509 | — | — | $0 | 15 | 2014-11-06 |
| CAH | Director | 9,526 | $223.85 | $2.13M | $0 | 3 | 2009-09-02 |
| Aon plc (AOC) Delisted | Senior Exec VP | 194,538 | — | — | -$8.63M | 8 | 2007-08-17 |
Recent Filings · Page 4 of 5
45 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2010-03-02 | CAREFUSION Corp (CFN) Delisted | Exer (M) | +1,223 | $0 | EDGAR |
| 2009-09-16 | CAREFUSION Corp (CFN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2009-09-02 | CAH | Mixed | −1,763 | $0 | EDGAR |
| 2009-09-02 | CAREFUSION Corp (CFN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2009-09-02 | CAREFUSION Corp (CFN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-11-06 | CAH | Grant (A) | +1,068 | $42.0K | EDGAR |
| 2007-11-09 | CAH | Grant (A) | +695 | $0 | EDGAR |
| 2007-08-17 | Aon plc (AOC) Delisted | Mixed | — | $0 | EDGAR |
| 2007-06-01 | Aon plc (AOC) Delisted | Sell (S) | −23,466 | -$1.01M | EDGAR |
| 2007-05-31 | Aon plc (AOC) Delisted | Mixed | −23,466 | -$3.37M | 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.