Brian J. Blaser
CIK 1492289 · President and CEO · last filed 2026-05-19
Brian J. Blaser is a President and CEO who has filed 62 SEC Form 4 insider transactions across 5 companies since 2010. The most recent filing, for QDEL, was dated May 19, 2026. Across all open-market trades the lifetime net is −$48.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $67.8M 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.
$67.75M
5
62
-$48.55M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| QDEL | President and CEO | 85,974 | $14.64 | $1.26M | $1.00M | 9 | 2026-05-19 |
| QTRX | Director | 19,049 | $3.13 | $59.7K | $0 | 2 | 2024-01-04 |
| Rockley Photonics Holdings Ltd (RKLY.WS) Delisted | Director | 54,393 | $0.04 | $2.3K | $394.7K | 5 | 2022-08-30 |
| Talis Biomedical Corp (TLIS) Delisted | President and CEO | — | $2.84 | — | $0 | 1 | 2021-12-02 |
| ABT | Executive Vice President | 580,807 | $114.38 | $66.43M | -$49.95M | 45 | 2019-05-24 |
Recent Filings
62 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-19 | QDEL | Mixed | +10,507 | -$105.8K | EDGAR |
| 2026-02-13 | QDEL | Buy (P) | +10,540 | $248.7K | EDGAR |
| 2026-02-03 | QDEL | Grant (A) | — | $0 | EDGAR |
| 2026-02-02 | QDEL | Mixed | +13,691 | -$212.6K | EDGAR |
| 2025-11-20 | QDEL | Buy (P) | +23,500 | $501.6K | EDGAR |
| 2025-05-19 | QDEL | Mixed | +11,451 | -$307.4K | EDGAR |
| 2025-02-05 | QDEL | Grant (A) | — | $0 | EDGAR |
| 2025-01-31 | QDEL | Grant (A) | — | $0 | EDGAR |
| 2024-12-13 | QDEL | Buy (P) | +6,033 | $249.9K | EDGAR |
| 2024-01-04 | QTRX | Grant (A) | +2,947 | $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.