13F Pro

SEC Form 4 reporting owner

Pelizzon David R

Pelizzon David R has filed 12 Form 4 transactions reported between December 8, 2025 and September 10, 2026, as Director of ORTHOPEDIATRICS CORP and a reporting owner of Alphatec Holdings, Inc..

Name as filed: Pelizzon David R

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$25.8M
10 lines
Companies
2
with Form 4 filings
Latest transaction
Sep 10, 2026
transaction date

Roles and reported holdings

  • KIDSORTHOPEDIATRICS CORP
    Jun 9, 2026 – Sep 10, 2026

    Director

    Held indirectly (latest line)6,201,764 sh as of Sep 10, 2026 · Form 4

    24 months: $15.6M sold

  • ATECAlphatec Holdings, Inc.
    Dec 8, 2025 – Jun 10, 2026

    Reporting owner

    Held indirectly (latest line)10,395,045 sh as of Dec 16, 2025 · Form 4

    24 months: $10.2M sold

Transaction history

All 12 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 10, 2026KIDSDirectorOpen-market saleCode S · indirectAlso reported by Pritzker Jennifer N., Squadron Capital LLC302,369$6.4M@ $21.01Form 4
Sep 2, 2026KIDSDirectorOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Pritzker Jennifer N.22,500$525K@ $23.35Form 4
Sep 1, 2026KIDSDirectorOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Pritzker Jennifer N.10,131$234K@ $23.10Form 4
Aug 28, 2026KIDSDirectorOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Pritzker Jennifer N.326,700$7.5M@ $23.04Form 4
Aug 26, 2026KIDSDirectorOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Pritzker Jennifer N.18,000$437K@ $24.28Form 4
Aug 25, 2026KIDSDirectorOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Pritzker Jennifer N.16,300$403K@ $24.74Form 4
Aug 24, 2026KIDSDirectorOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Pritzker Jennifer N.4,000$103K@ $25.75Form 4
Jun 10, 2026ATECGrant or awardCode A · direct32,012—Form 4
Jun 9, 2026KIDSDirectorGrant or awardCode A · direct11,436—Form 4
Dec 16, 2025ATECOpen-market saleCode S · indirect250,000$4.9M@ $19.66Form 4
Dec 9, 2025ATECOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Squadron Capital Holdings LLC, Pritzker Jennifer N.28,834$606K@ $21.03Form 4
Dec 8, 2025ATECOpen-market saleCode S · indirectAlso reported by Squadron Capital LLC, Squadron Capital Holdings LLC, Pritzker Jennifer N.221,166$4.7M@ $21.20Form 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.