John A DeFord
CIK 1403373 · Sr. VP Sci Tech and Clin Afrs · last filed 2026-05-28
John A DeFord is a Sr. VP Sci Tech and Clin Afrs who has filed 97 SEC Form 4 insider transactions across 4 companies since 2018. The most recent filing, for MRVI, was dated May 28, 2026. Across all open-market trades the lifetime net is +$100.6K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.9M across reported positions.
"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.
$3.95M
4
97
$100.6K
Holdings By Company
| 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
97 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-28 | MRVI | Grant (A) | +46,293 | $0 | EDGAR |
| 2026-05-04 | NDSN | Grant (A) | +87 | $25.1K | EDGAR |
| 2026-02-03 | NDSN | Grant (A) | +91 | $25.0K | EDGAR |
| 2026-01-23 | GMED | Grant (A) | — | $0 | EDGAR |
| 2025-11-03 | NDSN | Grant (A) | +822 | $190.7K | EDGAR |
| 2025-06-18 | MRVI | Grant (A) | +89,139 | $192.5K | EDGAR |
| 2025-03-28 | GMED | Grant (A) | — | $0 | EDGAR |
| 2024-11-14 | MRVI | Buy (P) | +17,500 | $100.6K | EDGAR |
| 2024-11-04 | NDSN | Grant (A) | +747 | $186.0K | EDGAR |
| 2024-05-24 | MRVI | Grant (A) | +20,645 | $222.6K | EDGAR |