Dannielle Appelhans
CIK 1874962 · CEO and President · last filed 2026-02-09
Dannielle Appelhans is a CEO and President who has filed 12 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for GBIO, was dated Feb 9, 2026. Across all open-market trades the lifetime net is +$25.5K, making them a net buyer over the disclosed history.
"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.
$0
2
12
$25.5K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| Generation Bio Co. (GBIO) Delisted | Director | 0 | $5.34 | $0 | $32.3K | 7 | 2026-02-09 |
| Rubius Therapeutics, Inc. (RUBY) Delisted | CEO and President | 0 | $0.08 | $0 | -$6.9K | 5 | 2023-02-27 |
Recent Filings
12 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-09 | Generation Bio Co. (GBIO) Delisted | Mixed | −1,999 | $0 | EDGAR |
| 2025-06-06 | Generation Bio Co. (GBIO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-06-10 | Generation Bio Co. (GBIO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-12-11 | Generation Bio Co. (GBIO) Delisted | Buy (P) | +8,000 | $14.3K | EDGAR |
| 2023-12-06 | Generation Bio Co. (GBIO) Delisted | Buy (P) | +12,000 | $18.0K | EDGAR |
| 2023-06-12 | Generation Bio Co. (GBIO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-02-27 | Rubius Therapeutics, Inc. (RUBY) Delisted | Sell (S) | −10,385 | -$1.3K | EDGAR |
| 2023-02-01 | Rubius Therapeutics, Inc. (RUBY) Delisted | Mixed | +3,622 | -$970 | EDGAR |
| 2022-08-12 | Rubius Therapeutics, Inc. (RUBY) Delisted | Mixed | +6,763 | -$4.6K | EDGAR |
| 2022-07-19 | Generation Bio Co. (GBIO) Delisted | Grant (A) | — | $0 | EDGAR |