O'Brien Dana C.
Director · Officer · ASIX, STRL, OLN
As of 2026-09-16, O'Brien Dana C. has 11 Form 4 transactions on record across 3 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 |
|---|---|---|---|---|---|---|---|
| 2026-02-09 | STRL | Sale | 2,000 @ $410.00 | $820K | −14.8% of holding | 11,498 | Form 4 |
| 2026-02-06 | STRL | Sale | 1,000 @ $400.00 | $400K | −6.9% of holding | 13,498 | Form 4 |
| 2026-02-06 | STRL | Sale | 1,000 @ $390.00 | $390K | −6.5% of holding | 14,498 | Form 4 |
| 2025-06-16 | STRL | Sale | 10,154 @ $206.58 | $2.1M | −38.1% of holding | 16,498 | Form 4 |
| 2024-12-18 | STRL | Sale | 2,000 @ $175.89 | $352K | −7.2% of holding | 25,901 | Form 4 |
6 award / exercise / gift records — not counted as purchases
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.