13F Pro

SEC Form 4 reporting owner

Mazzara Philip

Mazzara Philip has filed 66 Form 4 transactions reported between January 2, 2026 and August 17, 2026, as General Counsel and Secretary of Astera Labs, Inc..

Name as filed: Mazzara Philip

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$10.4M
64 lines
Companies
1
with Form 4 filings
Latest transaction
Aug 17, 2026
transaction date

Roles and reported holdings

  • ALABAstera Labs, Inc.
    Jan 2, 2026 – Aug 17, 2026

    General Counsel and Secretary

    Held directly96,542 sh as of Aug 17, 2026 · Form 4

    24 months: $10.4M sold

Transaction history

All 66 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct814$272K@ $333.64Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct540$180K@ $334.23Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct136$46K@ $335.42Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct227$76K@ $336.65Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct797$269K@ $337.76Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct610$207K@ $338.58Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct504$171K@ $339.74Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct205$70K@ $340.58Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct125$43K@ $341.71Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct415$142K@ $342.95Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct287$99K@ $343.94Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,310$452K@ $344.99Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct199$69K@ $346.13Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct269$93K@ $347.02Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct81$28K@ $348.05Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct156$54K@ $349.19Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct82$29K@ $351.24Form 4
Aug 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct44$15K@ $352.10Form 4
May 21, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct796$232K@ $291.03Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct395$85K@ $216.31Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct646$140K@ $216.97Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct364$79K@ $218.06Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct356$78K@ $218.87Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct274$60K@ $220.20Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct170$38K@ $221.01Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct189$42K@ $222.20Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct245$55K@ $223.75Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct35$8K@ $225.01Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct90$20K@ $225.76Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct275$62K@ $226.71Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct55$13K@ $229.54Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct186$43K@ $230.28Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct387$90K@ $231.31Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct99$23K@ $232.81Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct116$27K@ $233.19Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct990$233K@ $235.41Form 4
May 18, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct9,204$2.2M@ $235.36Form 4
May 14, 2026ALABGeneral Counsel and SecretaryGrant or awardCode A · direct131$16K@ $120.18Form 4
Apr 1, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct500$55K@ $110.35Form 4
Apr 1, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,000$109K@ $109.16Form 4
Apr 1, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct3,415$370K@ $108.40Form 4
Apr 1, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,985$213K@ $107.54Form 4
Apr 1, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct3,100$330K@ $106.34Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct200$24K@ $120.98Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,566$188K@ $120.23Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,202$143K@ $118.89Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct3,200$377K@ $117.92Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,205$141K@ $116.85Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct750$87K@ $115.84Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct677$78K@ $114.81Form 4
Mar 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,200$137K@ $113.85Form 4
Feb 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct469$59K@ $126.34Form 4
Feb 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct923$115K@ $124.66Form 4
Feb 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,435$178K@ $123.93Form 4
Feb 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,713$210K@ $122.84Form 4
Feb 17, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct309$38K@ $122.16Form 4
Feb 6, 2026ALABGeneral Counsel and SecretaryGrant or awardCode A · direct5,893—Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct200$36K@ $182.12Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,300$235K@ $180.98Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,319$237K@ $179.90Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct2,577$462K@ $179.11Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct2,304$411K@ $178.31Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct500$88K@ $176.92Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct1,100$192K@ $174.98Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct600$104K@ $174.13Form 4
Jan 2, 2026ALABGeneral Counsel and SecretaryOpen-market saleCode S · direct100$17K@ $172.65Form 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.