David R Walt
David R Walt's open-market purchases and sales year by year since 2006, and every transaction reported to the SEC on Form 4: date, shares, price and a link to…
Insider buying and selling since 2006
David R Walt bought shares on the open market in 8 different years since 2006 across 4 companies. Sales in 10 of the 21 years since 2006.
David R Walt reported 49 open-market purchases and 4,126 sales since 2006; purchases in 8 different years, most recently 2025.
| Year | Bought | Sold |
|---|---|---|
| 2025 | 4×4 trades | — |
| 2024 | 1×1 trade | — |
| 2022 | 1×1 trade | — |
| 2020 | 2×2 trades | — |
| 2019 | 1×1 trade | — |
| 2017 | 2×2 trades | — |
| 2016 | 34×34 trades | 8×8 trades |
| 2015 | 4×4 trades | 208×208 trades |
| 2014 | — | 26×26 trades |
| 2013 | — | 32×32 trades |
| 2011 | — | 37×37 trades |
| 2010 | — | 11×11 trades |
| 2009 | — | 32×32 trades |
| 2008 | — | 1209×1,209 trades |
| 2007 | — | 1675×1,675 trades |
| 2006 | — | 888×888 trades |
Insider at 4 companies
- Quanterix QTRX2017–2025 · 8 purchases, 0 sales
- Exicure XCUR2017–2020 · 3 purchases, 0 sales
- Illumina, Inc. ILMN2006–2016 · 0 purchases, 4,126 sales
- Dare Bioscience DARE2015–2016 · 38 purchases, 0 sales
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. The amounts, the people and every filing are in OQRO Pro.
Trades disclosed
Latest trade
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Companies
Every disclosed trade
Every trade this person has disclosed
Newest first, each one linked to the filing it came from.
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What this page holds
- Every disclosed trade, newest first
- How purchases did after they were reported
- Companies and committees involved
- A link to every official filing
What OQRO is
OQRO reads the public record for US-listed companies — insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings, and federal contract awards — and puts each one in plain words next to the filing it came from. It describes what was disclosed. It does not give investment advice or tell you what to buy.
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Questions about David R Walt's trades
Has David R Walt bought shares on the open market?
David R Walt bought shares on the open market in 8 different years since 2006 across 4 companies. Sales in 10 of the 21 years since 2006.
When did David R Walt last buy or sell shares?
In SEC filings since 2006: the latest open-market purchase is from 2025; the latest open-market sale is from 2016.
Which companies has David R Walt traded as an insider?
4 companies: Quanterix (QTRX, 2017–2025), Exicure (XCUR, 2017–2020), Illumina, Inc. (ILMN, 2006–2016), Dare Bioscience (DARE, 2015–2016).