[Form 4] Astera Labs, Inc. Insider Trading Activity
Astera Labs insider Philip Mazzara, the company's General Counsel and Secretary, reported sales of company common stock on 08/18/2025. The sales were automatic "sell-to-cover" transactions to satisfy tax withholding on vested restricted stock units and were not discretionary trades. The filing shows two grouped sales: 3,710 shares at a weighted average price of $183.8344 and 3,527 shares at a weighted average price of $183.1696, with per-share sale price ranges disclosed in each footnote. The reported post-transaction beneficial ownership balances are 175,100 and 171,573 shares respectively as shown on the form.
Philip Mazzara, insider di Astera Labs nonché General Counsel e Segretario della società, ha dichiarato vendite di azioni ordinarie della società il 18/08/2025. Le vendite sono state transazioni automatiche di tipo "sell-to-cover" per soddisfare le ritenute fiscali su unità azionarie vincolate (RSU) divenute esigibili e non operazioni discrezionali. La comunicazione riporta due vendite raggruppate: 3.710 azioni a un prezzo medio ponderato di $183,8344 e 3.527 azioni a un prezzo medio ponderato di $183,1696, con gli intervalli di prezzo per azione indicati nelle rispettive note. I saldi di titolarità beneficiaria dopo la transazione risultano essere 175.100 e 171.573 azioni, come mostrato nel modulo.
Philip Mazzara, insider de Astera Labs y abogado general y secretario de la empresa, informó ventas de acciones ordinarias de la compañía el 18/08/2025. Las ventas fueron transacciones automáticas de "sell-to-cover" para cubrir la retención fiscal sobre unidades restringidas (RSU) adquiridas y no operaciones discrecionales. El informe muestra dos ventas agrupadas: 3.710 acciones a un precio medio ponderado de $183,8344 y 3.527 acciones a un precio medio ponderado de $183,1696, con los rangos de precio por acción detallados en cada nota. Los saldos de propiedad beneficiaria tras la operación son 175.100 y 171.573 acciones, respectivamente, según consta en el formulario.
Astera Labs의 임원인 법무담당 겸 서기 Philip Mazzara는 2025년 8월 18일 회사 보통주 매도 사실을 신고했습니다. 해당 매도는 취득된 제한부주식(RSU)에 대한 세금 원천징수를 충당하기 위한 자동 "sell-to-cover" 거래였으며 임의 매매가 아니었습니다. 신고서에는 두 건의 묶음 매도가 기재되어 있는데, 가중평균매도가 각각 주당 $183.8344에 3,710주, 주당 $183.1696에 3,527주이며, 각 각주별 매도가 범위는 주석에 기재되어 있습니다. 거래 후 보고된 수익적 소유 잔액은 양식에 표시된 바와 같이 각각 175,100주 및 171,573주입니다.
Philip Mazzara, initié d'Astera Labs et avocat général et secrétaire de la société, a déclaré des ventes d'actions ordinaires de la société le 18/08/2025. Les ventes étaient des opérations automatiques « sell-to-cover » destinées à couvrir les retenues fiscales sur des unités d'actions restreintes (RSU) devenues acquises et n'étaient pas des opérations discrétionnaires. Le dépôt fait état de deux ventes groupées : 3 710 actions à un prix moyen pondéré de 183,8344 $ et 3 527 actions à un prix moyen pondéré de 183,1696 $, les fourchettes de prix par action étant indiquées dans chaque note. Les soldes de détention bénéficiaire après la transaction sont de 175 100 et 171 573 actions respectivement, comme indiqué sur le formulaire.
Philip Mazzara, Insider bei Astera Labs sowie General Counsel und Secretary des Unternehmens, meldete Verkäufe von Stammaktien am 18.08.2025. Die Verkäufe waren automatische "sell-to-cover"-Transaktionen zur Begleichung der Lohnsteuer auf fällige Restricted Stock Units (RSU) und keine diskretionären Trades. Das Formular weist zwei gebündelte Verkäufe aus: 3.710 Aktien zu einem gewichteten Durchschnittspreis von $183,8344 und 3.527 Aktien zu einem gewichteten Durchschnittspreis von $183,1696; die Preisbereiche pro Aktie sind in den jeweiligen Fußnoten angegeben. Die gemeldeten nutzungsberechtigten Bestände nach der Transaktion betragen laut Formular 175.100 bzw. 171.573 Aktien.
- Sale was automatic to satisfy tax withholding on vested RSUs, indicating it was not a discretionary insider sale
- Weighted-average prices and price ranges disclosed, enhancing transparency for investors and regulators
- Reporting person is an officer and has filed the Form 4, showing compliance with Section 16 reporting requirements
- Insider disposed of shares (3,710 and 3,527 shares), which reduces the officer's direct holdings
- Form shows reduced beneficial ownership balances (reported as 175,100 and 171,573 shares following the transactions)
Insights
TL;DR: Routine tax-withholding sales by an officer; disclosed and non-discretionary, so limited governance concern.
The Form 4 documents mandatory "sell-to-cover" disposals tied to RSU vesting rather than voluntary market-timing by the reporting officer. This reduces the likelihood of insider trading concerns and demonstrates compliance with pre-established company tax-withholding procedures. The sizes—3,710 and 3,527 shares—are modest relative to typical officer holdings and are accompanied by weighted-average price ranges, which improves transpaency. No derivative transactions or additional plan-based trades are reported.
TL;DR: Impact appears neutral; small insider share sales for taxes, with full price ranges disclosed.
The transactions are explicitly described as automatic and mandated by the issuer's election to fund tax withholding via "sell-to-cover." The disclosure of weighted-average prices and ranges allows precise verification if requested. From an investor-materiality standpoint, there is no new operational or financial information—merely routine equity settlement activity—so the filing is unlikely to affect valuation or market view on its own.
Philip Mazzara, insider di Astera Labs nonché General Counsel e Segretario della società, ha dichiarato vendite di azioni ordinarie della società il 18/08/2025. Le vendite sono state transazioni automatiche di tipo "sell-to-cover" per soddisfare le ritenute fiscali su unità azionarie vincolate (RSU) divenute esigibili e non operazioni discrezionali. La comunicazione riporta due vendite raggruppate: 3.710 azioni a un prezzo medio ponderato di $183,8344 e 3.527 azioni a un prezzo medio ponderato di $183,1696, con gli intervalli di prezzo per azione indicati nelle rispettive note. I saldi di titolarità beneficiaria dopo la transazione risultano essere 175.100 e 171.573 azioni, come mostrato nel modulo.
Philip Mazzara, insider de Astera Labs y abogado general y secretario de la empresa, informó ventas de acciones ordinarias de la compañía el 18/08/2025. Las ventas fueron transacciones automáticas de "sell-to-cover" para cubrir la retención fiscal sobre unidades restringidas (RSU) adquiridas y no operaciones discrecionales. El informe muestra dos ventas agrupadas: 3.710 acciones a un precio medio ponderado de $183,8344 y 3.527 acciones a un precio medio ponderado de $183,1696, con los rangos de precio por acción detallados en cada nota. Los saldos de propiedad beneficiaria tras la operación son 175.100 y 171.573 acciones, respectivamente, según consta en el formulario.
Astera Labs의 임원인 법무담당 겸 서기 Philip Mazzara는 2025년 8월 18일 회사 보통주 매도 사실을 신고했습니다. 해당 매도는 취득된 제한부주식(RSU)에 대한 세금 원천징수를 충당하기 위한 자동 "sell-to-cover" 거래였으며 임의 매매가 아니었습니다. 신고서에는 두 건의 묶음 매도가 기재되어 있는데, 가중평균매도가 각각 주당 $183.8344에 3,710주, 주당 $183.1696에 3,527주이며, 각 각주별 매도가 범위는 주석에 기재되어 있습니다. 거래 후 보고된 수익적 소유 잔액은 양식에 표시된 바와 같이 각각 175,100주 및 171,573주입니다.
Philip Mazzara, initié d'Astera Labs et avocat général et secrétaire de la société, a déclaré des ventes d'actions ordinaires de la société le 18/08/2025. Les ventes étaient des opérations automatiques « sell-to-cover » destinées à couvrir les retenues fiscales sur des unités d'actions restreintes (RSU) devenues acquises et n'étaient pas des opérations discrétionnaires. Le dépôt fait état de deux ventes groupées : 3 710 actions à un prix moyen pondéré de 183,8344 $ et 3 527 actions à un prix moyen pondéré de 183,1696 $, les fourchettes de prix par action étant indiquées dans chaque note. Les soldes de détention bénéficiaire après la transaction sont de 175 100 et 171 573 actions respectivement, comme indiqué sur le formulaire.
Philip Mazzara, Insider bei Astera Labs sowie General Counsel und Secretary des Unternehmens, meldete Verkäufe von Stammaktien am 18.08.2025. Die Verkäufe waren automatische "sell-to-cover"-Transaktionen zur Begleichung der Lohnsteuer auf fällige Restricted Stock Units (RSU) und keine diskretionären Trades. Das Formular weist zwei gebündelte Verkäufe aus: 3.710 Aktien zu einem gewichteten Durchschnittspreis von $183,8344 und 3.527 Aktien zu einem gewichteten Durchschnittspreis von $183,1696; die Preisbereiche pro Aktie sind in den jeweiligen Fußnoten angegeben. Die gemeldeten nutzungsberechtigten Bestände nach der Transaktion betragen laut Formular 175.100 bzw. 171.573 Aktien.
FAQ
What did Astera Labs insider Philip Mazzara report on Form 4 (ALAB)?
Were Philip Mazzara's sales discretionary trades?
What were the reported sale prices for the ALAB transactions?
How many shares did Mazzara beneficially own after the reported transactions?
Do these Form 4 entries include any derivative transactions?
