John A DeFord
CIK 1403373 · Sr. VP Sci Tech and Clin Afrs · last filed 2026-05-28
"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
$3.95M
Companies
4
Total Filings
97
Lifetime Open-Market Net
$100.6K
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 |
|---|---|---|---|---|---|---|---|
| MRVI | Director | 205,478 | $4.98 | $1.02M | $100.6K | 5 | 2026-05-28 |
| NDSN | Director | 5,802 | $288.21 | $1.67M | $0 | 17 | 2026-05-04 |
| GMED | Director | 15,578 | $80.39 | $1.25M | $0 | 5 | 2026-01-23 |
| NUVASIVE INC (NUVA) Delisted | Director | — | $39.75 | — | $0 | 8 | 2023-09-05 |
Recent Filings · Page 6 of 10
97 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2015-12-11 | — | Grant (A) | — | $0 | |
| 2015-08-06 | — | Mixed | — | -$1.19M | |
| 2015-02-24 | — | Sell (S) | −2,987 | -$522.3K | |
| 2015-02-18 | — | Mixed | −9,470 | -$1.65M | |
| 2015-02-13 | — | Mixed | +11,366 | -$120.6K | |
| 2015-01-16 | — | Grant (A) | +3,999 | $394.5K | |
| 2014-12-17 | — | Mixed | −2,656 | -$908.9K | |
| 2014-12-12 | — | Grant (A) | — | $0 | |
| 2014-02-18 | — | Tax (F) | −615 | -$84.1K | |
| 2014-02-14 | — | Mixed | +993 | -$20.6K |
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.