Shelia M. Violette
CIK 2016144 · Chief Scientific Officer · last filed 2026-08-27
Shelia M. Violette is a Chief Scientific Officer who has filed 9 SEC Form 4 insider transactions across 1 company since 2024. The most recent filing shows the insider sold $46.3K of QTTB on Aug 27, 2026. Across all open-market trades the lifetime net is −$64.4K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.4M 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.
$1.35M
1
9
-$64.4K
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
Filer Profile
830 WINTER STREET
WALTHAM, MA 02451
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| QTTB | Chief Scientific Officer | 164,048 | $8.23 | $1.35M | -$64.4K | 9 | 2026-08-27 |
Recent Filings
9 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-27 | QTTB | Sell (S) | −2,798 | -$46.3K | EDGAR |
| 2026-07-20 | QTTB | Grant (A) | +37,500 | $0 | EDGAR |
| 2026-03-20 | QTTB | Grant (A) | +37,500 | $0 | EDGAR |
| 2026-02-27 | QTTB | Sell (S) | −2,815 | -$12.7K | EDGAR |
| 2025-08-28 | QTTB | Sell (S) | −2,990 | -$5.4K | EDGAR |
| 2025-02-26 | QTTB | Mixed | +37,500 | $0 | EDGAR |
| 2024-10-16 | QTTB | Exer (M) | +10,574 | $58.0K | EDGAR |
| 2024-10-10 | QTTB | Exer (M) | +13,300 | $41.5K | EDGAR |
| 2024-03-27 | QTTB | Grant (A) | — | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.