SEC Form 4 reporting owner

Rajavelu Esther

Rajavelu Esther has filed 6 Form 4 transactions reported between February 2, 2026 and May 4, 2026, as a reporting owner of Spero Therapeutics, Inc..

Name as filed: Rajavelu Esther

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$311K
4 lines
Companies
1
with Form 4 filings
Latest transaction
May 4, 2026
transaction date

Roles and reported holdings

  • SPROSpero Therapeutics, Inc.
    Feb 2, 2026 – May 4, 2026

    Reporting owner

    Held directly986,851 sh as of May 4, 2026 · Form 4

    24 months: $311K sold

Transaction history

All 6 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
May 4, 2026SPROOpen-market saleCode S · direct25,240$63K@ $2.51Form 4
Feb 6, 2026SPROOpen-market saleCode S · direct50,816$120K@ $2.36Form 4
Feb 6, 2026SPROOpen-market saleCode S · direct37,101$88K@ $2.36Form 4
Feb 2, 2026SPROGrant or awardCode A · direct498,000—Form 4
Feb 2, 2026SPROOpen-market saleCode S · direct18,442$41K@ $2.20Form 4
Feb 2, 2026SPROGrant or awardCode A · direct249,000—Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.