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Who

Joseph A. Tautges

Director

Company insider

Files Form 4 as: Director, Ambiq Micro; EVP, Chief Operating Officer, CDK Global; Chief Accounting Officer, Hewitt Associates.

In numbers

Trades disclosed
34
Buys
1
Sells
1
Bought
$400K
Sold
$484K
Companies
3
Companies where not an officer
1
First trade
30 Sep 2010
Last trade
8 Jun 2026
Last filed
10 Jun 2026

Companies traded

Where they are an officer
CDK GlobalOfficer · last 6 Jul 20221 buy · 0 sells
Hewitt AssociatesOfficer · last 1 Oct 20100 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
AMBQ Ambiq MicroDirector · Semiconductors · last 8 Jun 20260 buys · 1 sell

Activity over time

1 Nov 2024 – 1 Oct 2026
10Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
8 Jun 2026filed 10 Jun 2026AMBQ Ambiq MicroSemiconductorsSEC FORM 4 Code A—4,957 at $0.00filing
8 Jun 2026filed 10 Jun 2026AMBQ Ambiq MicroSemiconductorsSEC FORM 4 Code A—4,957 at $0.00filing
26 Jan 2026filed 28 Jan 2026AMBQ Ambiq MicroSemiconductorsSEC FORM 4 Sold$242K7,800 at $31.00filing
26 Jan 2026filed 28 Jan 2026AMBQ Ambiq MicroSemiconductorsSEC FORM 4 Sold$242K7,800 at $31.00filing
29 Jul 2025filed 31 Jul 2025AMBQ Ambiq MicroSemiconductorsSEC FORM 4 Code A—56,546 at $0.00filing
6 Jul 2022filed 6 Jul 2022CDK Globaloption or derivativeSEC FORM 4 Code D—24,920filing
6 Jul 2022filed 6 Jul 2022CDK GlobalSEC FORM 4 Code A—103,073filing
6 Jul 2022filed 6 Jul 2022CDK GlobalSEC FORM 4 Code D—231,834filing
17 Sep 2021filed 20 Sep 2021CDK GlobalSEC FORM 4 Code F$387K9,129 at $42.35filing
16 Sep 2021filed 20 Sep 2021CDK GlobalSEC FORM 4 Code A—45,785 at $0.00filing
10 Sep 2021filed 14 Sep 2021CDK GlobalSEC FORM 4 Code F$100K2,367 at $42.43filing
3 Sep 2021filed 7 Sep 2021CDK GlobalSEC FORM 4 Code F$50K1,222 at $41.14filing
26 Aug 2021filed 30 Aug 2021CDK GlobalSEC FORM 4 Code F$240K5,852 at $40.97filing
13 Aug 2021filed 17 Aug 2021CDK GlobalSEC FORM 4 Code A—11,803 at $0.00filing
17 Sep 2020filed 21 Sep 2020CDK GlobalSEC FORM 4 Code A—55,235 at $0.00filing
11 Sep 2020filed 15 Sep 2020CDK GlobalSEC FORM 4 Code F$112K2,562 at $43.83filing
4 Sep 2020filed 8 Sep 2020CDK GlobalSEC FORM 4 Code F$60K1,322 at $45.41filing
27 Aug 2020filed 31 Aug 2020CDK GlobalSEC FORM 4 Code F$190K4,072 at $46.64filing
7 Aug 2020filed 10 Aug 2020CDK GlobalSEC FORM 4 Code F$101K2,163 at $46.89filing
6 Aug 2020filed 10 Aug 2020CDK GlobalSEC FORM 4 Code A—7,589 at $0.00filing

Sectors

Technology1
Not placed1

Buys in green, sells in red, by the company’s sector.

Related people

Fumihide EsakaChief Executive Officer · Also traded AMBQ in the last 90 days
Scott McLean HansonChief Technology Officer · Also traded AMBQ in the last 90 days
Sean Chihhsiang ChenPresident and COO · Also traded AMBQ in the last 90 days
Jeffrey G. WinzelerChief Financial Officer · Also traded AMBQ in the last 90 days
Ker ZhangDirector · Also traded AMBQ in the last 90 days