Runs a caller-declared list of an insider's own purchases and sales through the lowest-in/highest-out matchable-pair construction used to compute Section 16(b) short-swing profit, then compares the result against a demand letter's claimed figure where one is pasted in. The recomputed side is derived here from the transaction list, not copied from the letter, so a comparison is an independent recomputation rather than a re-adding of a published number. Plaintiff firms scan Form 4 filings and send demand letters built on this same lowest-in/highest-out arithmetic; the recipient, whether the insider or the issuer's counsel, can run the identical construction here to check the letter's number.
The demo figures below are synthetic. They are not a copy of any real Form 4/5 filing, and they are already loaded so you can press Run without entering anything of your own.
It does not forecast, project or model a scenario. It recomputes a stated transaction list and nothing else. It does not compute a Rule 144 volume-limitation check, a named follow-on tool, not this node. It makes no independent determination that a declared exemption in fact applies, and the six-month window it applies is a day-count approximation of the statutory calendar-month boundary, both named in not_proven. It is not legal advice, and no computed figure resolves a matchability or exemption dispute.
Shares a caller-declared-list, independent-recomputation-vs-a-counterparty-claim shape with ART-572 Multi-Garnishment Stacking Recomputation and ART-568 Securitization Trustee-Report Waterfall Recomputation, but is an independent tool with its own vocabulary, matching construction and citations.