Philip Mazzara
Philip Mazzara: General Counsel and Secretary at Astera Labs. What Philip Mazzara holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Astera Labs (ALAB)
Philip Mazzara holds 96,542 Astera Labs shares (0.06% of the company), worth about $34.9M at the last price, according to the Form 4 of Aug 17, 2026.
- Shares held: 96,542 (0.06%), $34.9M — Held in their own name.
Declarations
- Astera Labs (ALAB) — Form 4 of Aug 17, 2026 (General Counsel and Secretary): open-market sale of 44 at $352.10; open-market sale of 82 at $351.24; 96,542 shares after 0001998163-26-000022
- Astera Labs (ALAB) — Form 4 of May 21, 2026 (General Counsel and Secretary): open-market sale of 796 at $291.03; 103,343 shares after 0001998163-26-000019
- Astera Labs (ALAB) — Form 4 of May 18, 2026 (General Counsel and Secretary): open-market sale of 9,204 at $235.36; open-market sale of 990 at $235.41; 104,139 shares after 0001998163-26-000016
- Astera Labs (ALAB) — Form 4 of May 14, 2026 (General Counsel and Secretary): grant or award of 131 at $120.18; 118,215 shares after 0001998163-26-000013
- Astera Labs (ALAB) — Form 4 of Apr 1, 2026 (General Counsel and Secretary): open-market sale of 3,100 at $106.34; open-market sale of 1,985 at $107.54; 118,084 shares after 0001998163-26-000009
- Astera Labs (ALAB) — Form 4 of Mar 2, 2026 (General Counsel and Secretary): open-market sale of 1,200 at $113.85; open-market sale of 677 at $114.81; 128,084 shares after 0001998163-26-000007
- Astera Labs (ALAB) — Form 4 of Feb 17, 2026 (General Counsel and Secretary): open-market sale of 309 at $122.16; open-market sale of 1,713 at $122.84; 138,084 shares after 0001998163-26-000005
- Astera Labs (ALAB) — Form 4 of Feb 6, 2026 (General Counsel and Secretary): grant or award of 5,893; 142,933 shares after 0001998163-26-000003
- Astera Labs (ALAB) — Form 4 of Jan 2, 2026 (General Counsel and Secretary): open-market sale of 100 at $172.65; open-market sale of 600 at $174.13; 137,040 shares after 0001998163-26-000001
- Astera Labs (ALAB) — Form 4 of Nov 17, 2025 (General Counsel and Secretary): open-market sale of 454 at $146.42; open-market sale of 1,051 at $145.69; 147,040 shares after 0001998163-25-000011
- Astera Labs (ALAB) — Form 4 of Nov 14, 2025 (General Counsel and Secretary): grant or award of 87 at $78.36; 151,660 shares after 0001998163-25-000008
- Astera Labs (ALAB) — Form 4 of Oct 1, 2025 (General Counsel and Secretary): open-market sale of 700 at $187.21; open-market sale of 800 at $188.37; 151,573 shares after 0001998163-25-000004
- Astera Labs (ALAB) — Form 4 of Aug 28, 2025 (General Counsel and Secretary): open-market sale of 100 at $182.55; open-market sale of 339 at $185.70; 161,573 shares after 0001736297-25-000124
- Astera Labs (ALAB) — Form 4 of Aug 18, 2025 (General Counsel and Secretary): open-market sale of 3,710 at $183.83; open-market sale of 3,527 at $183.17; 171,573 shares after 0001736297-25-000116
- Astera Labs (ALAB) — Form 4 of Jul 24, 2025 (General Counsel and Secretary): grant or award of 16,214; 178,810 shares after 0001736297-25-000092
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.