⚠️ Important Notice: QMA is an analytical and educational tool, not investment advice. Scores, detections and ratings are descriptive, not buy/sell instructions. QMA is not a registered investment advisor (SEC / FINRA / MiFID II / ČNB). Consult a licensed financial advisor before any investment. Past performance does not guarantee future results; all investments carry the risk of capital loss.
Operator: Jaroslav Vojtášek · IČO: 48783447 · Place of business: U Jízdárny 577, 747 64 Velká Polom, Czech Republic · Register: Sole trader registered in the Czech Trade Licensing Register · E-mail: [email protected]
Click to expand: what this page does, why it helps, how to use it
Insider Leaderboard
NEW
A list of corporate insiders (CEO, CFO, board) by their open-market purchases reported on SEC Form 4. We show who, how much and when — facts from the filing. Source: SEC EDGAR Form 4.
⚠️ Insider hit rate withdrawn (2026-07-15). The leaderboard used to rank insiders by a "hit rate" that priced entry at the insider's own fill inside the company — a price nobody outside can transact at. It also started the clock on the trade date rather than the filing date. Re-priced at a close a follower could actually have paid once the Form 4 was public, the success rate came out at coin-flip level. We are not replacing it with the smaller number — we show only what the filing states: who bought, how much, and when.
Insiders
0
Lookback
365d
Total committed
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Min Tx
3
Lookback:
Min Tx:3
#
Insider / Title
Tickers
Buys
Last buy
Buy value
How this works: We take every reported open-market purchase from SEC Form 4 (transaction code P = open market purchase) in the selected window and aggregate per insider: number of buys, total value committed, most recent date, and the tickers bought. No estimates, no modelling — just an aggregation of what the filing states.
What is not here and why: Hit rate, average return and total return were withdrawn on 2026-07-15. Entry was priced from the Form 4 itself — the price the insider paid inside the company, which nobody outside can transact at. It also measured from the trade date rather than the filing date (median 2 days, and more than 2 days for 33% of buys). On the same 34,404 purchases: the original computation gave 58.6% hit rate / +13.74% avg 90d; re-priced at a close actually reachable after the filing became public, 51.3% / +2.58% — a coin flip. We are not putting the smaller number in place of the bigger one: a success ranking built on that would order noise by noise.
Caveats: (1) An insider purchase is one data point from one filing — descriptive information, not investment advice. (2) A large amount does not mean a well-timed purchase; insiders buy for reasons unrelated to the stock's outlook. (3) The information only becomes public when the Form 4 is filed, not on the trade date. (4) Awards and option exercises are NOT included (open-market buys only).
Source: SEC EDGAR Form 4 (public registry). Our own aggregation.
