David Francis O'Brien
CIK 1823142 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 1, 2020 · Latest: Sept. 1, 2020
On this page
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 27, 2020 | SINT | P | 269 | $1.52 | $409 | 5,746 Direct | +4.91% | Acquired | -100.0% (price as of 2026-08-24) |
| Aug. 25, 2020 | SINT | P | 5,477 | $1.75 | $9,585 | 5,477 Direct | — | Acquired | -100.0% (price as of 2026-08-24) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.