KENNETH R BIEDERMAN
CIK 1208423 · last filed 2025-05-07
KENNETH R BIEDERMAN is a corporate insider who has filed 70 SEC Form 4 insider transactions across 1 company since 2007. The most recent filing, for ARTNA, was dated May 7, 2025. Across all open-market trades the lifetime net is −$3.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $979.0K 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.
$979.0K
1
70
-$3.59M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ARTNA | Director | 29,875 | $32.77 | $979.0K | -$3.59M | 70 | 2025-05-07 |
Recent Filings
70 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-05-07 | ARTNA | Other (J) | +1,000 | $37.1K | EDGAR |
| 2024-05-10 | ARTNA | Other (J) | +1,000 | $54.9K | EDGAR |
| 2024-05-08 | ARTNA | Grant (A) | — | $0 | EDGAR |
| 2023-05-11 | ARTNA | Grant (A) | — | $0 | EDGAR |
| 2023-05-11 | ARTNA | Grant (A) | — | $0 | EDGAR |
| 2023-05-05 | ARTNA | Other (J) | +1,000 | $45.6K | EDGAR |
| 2022-11-18 | ARTNA | Mixed | — | -$106.0K | EDGAR |
| 2022-09-19 | ARTNA | Mixed | — | -$120.1K | EDGAR |
| 2022-05-05 | ARTNA | Mixed | +1,000 | $40.1K | EDGAR |
| 2022-03-15 | ARTNA | Mixed | — | -$169.7K | EDGAR |