BAUM MARK L
Director · Officer · Ten-percent owner · HROW
As of 2026-09-16, BAUM MARK L has 11 Form 4 transactions on record across 1 company — 4 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
- Direct $102.5M
- Indirect $0
| HROW | direct | 2,996,130 sh | $102.5M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-05-14 | HROW | Purchase | 10,000 @ $30.20 | $302K | +0.3% of holding | 2,996,130 | Form 4 |
10 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2025-12-12 | HROW | Withheld for tax | 79,994 | 2,986,130 | Form 4 |
| 2025-12-12 | HROW | Option exercise | 180,000 | 3,066,124 | Form 4 |
| 2025-12-12 | HROW | Option exercise | 180,000 | 0 | Form 4 |
| 2025-07-21 | HROW | Withheld for tax | 313,338 | 2,886,124 | Form 4 |
| 2025-07-21 | HROW | Option exercise | 600,000 | 3,199,462 | Form 4 |
| 2025-07-01 | HROW | Award / grant | 889,500 | 889,500 | Form 4 |
| 2025-04-07 | HROW | Withheld for tax | 300,363 | 2,599,462 | Form 4 |
| 2025-04-03 | HROW | Option exercise | 762,300 | 0 | Form 4 |
| 2025-04-03 | HROW | Option exercise | 762,300 | 2,899,825 | Form 4 |
| 2015-07-31 | HROW | Option exercise | 600,000 | 0 | 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.