Rosenberg Aaron
Officer · ONC, BGNE
As of 2026-09-16, Rosenberg Aaron has 10 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.
Pattern in the record: open-market sales filed in August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $30.8M
- Indirect $0
| BGNE | direct | 167,128 sh | $30.8M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-03 | ONC | Sale | 1,157 @ $312.71 | $362K | −100.0% of holding | 0 | Form 4 |
| 2026-06-11 | ONC | Sale | 631 @ $257.74 | $163K | −100.0% of holding | 0 | Form 4 |
| 2025-08-01 | ONC | Sale | 1,190 @ $290.47 | $346K | −100.0% of holding | 0 | Form 4 |
7 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-11 | ONC | Award / grant | 71,175 | 397,891 | Form 4 |
| 2026-06-11 | ONC | Award / grant | 137,865 | 137,865 | Form 4 |
| 2026-03-06 | ONC | Award / grant | 40,573 | 334,919 | Form 4 |
| 2026-03-06 | ONC | Award / grant | 79,014 | 294,346 | Form 4 |
| 2025-06-10 | ONC | Award / grant | 119,873 | 119,873 | Form 4 |
| 2025-06-10 | ONC | Award / grant | 63,674 | 230,802 | Form 4 |
| 2025-03-05 | BGNE | Award / grant | 48,581 | 167,128 | 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.