SEC Form 4 reporting owner

Bastarrica Air A. Jr.

Bastarrica Air A. Jr. has filed 14 Form 4 transactions reported between February 6, 2026 and April 30, 2026, as Vice President, Controller of Knowles Corp.

Name as filed: Bastarrica Air A. Jr.

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$626K

6 lines

Companies

with Form 4 filings

Latest transaction

Apr 30, 2026

transaction date

Roles and reported holdings

KNKnowles Corp
Feb 6, 2026 – Apr 30, 2026
Vice President, Controller
Held directly47,569 sh as of Apr 30, 2026 · Form 4
24 months: $626K sold

Transaction history

All 14 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Apr 30, 2026	KNVice President, Controller	Open-market saleCode S · direct	3,623	$30.91	$112K@ $30.91	47,569	Form 4
Apr 29, 2026	KNVice President, Controller	Open-market saleCode S · direct	2,153	$29.96	$65K@ $29.96	51,192	Form 4
Apr 28, 2026	KNVice President, Controller	Open-market saleCode S · direct	1,962	$30.26	$59K@ $30.26	53,345	Form 4
Apr 27, 2026	KNVice President, Controller	Open-market saleCode S · direct	2,262	$30.68	$69K@ $30.68	55,307	Form 4
Feb 20, 2026	KNVice President, Controller	Shares withheld for tax or exercise priceCode F · direct	2,347	$27.54	$65K@ $27.54	57,569	Form 4
Feb 18, 2026	KNVice President, Controller	Shares withheld for tax or exercise priceCode F · direct	2,143	$27.16	$58K@ $27.16	59,916	Form 4
Feb 17, 2026	KNVice President, Controller	Grant or awardCode A · direct	11,054	—	—	62,059	Form 4
Feb 9, 2026	KNVice President, Controller	Shares withheld for tax or exercise priceCode F · direct	6,958	$27.24	$190K@ $27.24	51,005	Form 4
Feb 9, 2026	KNVice President, Controller	Option exerciseCode M · direct	8,143	$20.60	$168K@ $20.60	57,963	Form 4
Feb 9, 2026	KNVice President, Controller	Shares withheld for tax or exercise priceCode F · direct	10,304	$27.24	$281K@ $27.24	49,820	Form 4
Feb 9, 2026	KNVice President, Controller	Option exerciseCode M · direct	11,924	$21.14	$252K@ $21.14	60,124	Form 4
Feb 9, 2026	KNVice President, Controller	Open-market saleCode S · direct	9,567	$26.75	$256K@ $26.75	48,200	Form 4
Feb 9, 2026	KNVice President, Controller	Open-market saleCode S · direct	2,433	$26.82	$65K@ $26.82	57,767	Form 4
Feb 6, 2026	KNVice President, Controller	Shares withheld for tax or exercise priceCode F · direct	2,337	$26.98	$63K@ $26.98	60,200	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.