SPLINTER MICHAEL R
Director · NDAQ, TYGO
As of 2026-09-16, SPLINTER MICHAEL R has 12 Form 4 transactions on record across 2 companies — 6 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|
12 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-10 | NDAQ | Award / grant | 5,246 | 217,988 | Form 4 |
| 2026-05-20 | TYGO | Award / grant | 33,068 | 547,601 | Form 4 |
| 2026-05-20 | TYGO | Award / grant | 9,920 | 514,533 | Form 4 |
| 2026-01-30 | NDAQ | Gift | 4,680 | 212,742 | Form 4 |
| 2026-01-30 | NDAQ | Gift | 4,680 | 15,225 | Form 4 |
| 2025-11-25 | TYGO | Award / grant | 20,949 | 504,613 | Form 4 |
| 2025-08-06 | TYGO | Option exercise | 11,668 | 483,664 | Form 4 |
| 2025-08-06 | TYGO | Option exercise | 11,668 | 0 | Form 4 |
| 2025-06-11 | NDAQ | Award / grant | 5,241 | 217,422 | Form 4 |
| 2025-05-20 | TYGO | Award / grant | 126,904 | 471,996 | Form 4 |
| 2025-05-19 | TYGO | Award / grant | 39,474 | 345,092 | Form 4 |
| 2024-11-23 | TYGO | Award / grant | 40,279 | 258,948 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.