Understand Stock

$TDC

$35.00 -$1.51 (4.14%)

Deep Research with AI Research

Overview

$TDC Overview Financials SEC Filings Executives News

Specialized Tools

Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

Lake LP Lynrock

9,406,152 shares

Net: -10,514 B/S: -

STEPHEN MCMILLAN

782,446 shares

Net: +136,537 B/S: 6.95

VICTOR L LUND

487,152 shares

Net: 0 B/S: -

John Ederer

381,781 shares

Net: +73,562 B/S: ∞

Sumeet Arora

304,097 shares

Net: +87,202 B/S: ∞

MICHAEL KOEHLER

290,203 shares

Net: 0 B/S: -

Mark Culhane

270,107 shares

Net: 0 B/S: -

Daniel L Harrington

266,179 shares

Net: 0 B/S: -

Richard J Petley

241,944 shares

Net: +66,339 B/S: ∞

Scot Frazier Rogers

240,150 shares

Net: +170,456 B/S: ∞

Michael D Hutchinson

220,004 shares

Net: +52,054 B/S: ∞

Scott A Brown

194,880 shares

Net: 0 B/S: -

Robert Fair

143,345 shares

Net: 0 B/S: -

Kathleen R Cullen-Cote

142,707 shares

Net: 0 B/S: -

Margaret A Treese

142,253 shares

Net: 0 B/S: -

CLAIRE BRAMLEY

126,072 shares

Net: 0 B/S: -

Oliver Ratzesberger

121,896 shares

Net: 0 B/S: -

Todd Cione

119,422 shares

Net: 0 B/S: -

Charles T Smotherman

114,618 shares

Net: 0 B/S: -

Jacqueline D. Woods

112,626 shares

Net: 0 B/S: -

Laura K Nyquist

102,331 shares

Net: 0 B/S: -

JOHN SCHWARZ

101,779 shares

Net: 0 B/S: -

Stephen Mark Scheppmann

96,624 shares

Net: 0 B/S: -

Hermann Wimmer

96,036 shares

Net: 0 B/S: -

WILLIAM S STAVROPOULOS

94,711 shares

Net: 0 B/S: -

CARY T FU

84,534 shares

Net: 0 B/S: -

Martyn Etherington

84,454 shares

Net: 0 B/S: -

EDWARD P BOYKIN

82,432 shares

Net: 0 B/S: -

Reema Poddar

76,572 shares

Net: 0 B/S: -

Lisa R Bacus

75,104 shares

Net: 0 B/S: -

Daniel R Fishback

67,522 shares

Net: 0 B/S: -

Hillary Ashton

66,772 shares

Net: 0 B/S: -

Joanne Beth Olsen

60,211 shares

Net: 0 B/S: -

DAVID E KEPLER

58,806 shares

Net: 0 B/S: -

Kimberly K. Nelson

53,185 shares

Net: 0 B/S: -

Saundra Davis

47,922 shares

Net: 0 B/S: -

NANCY E COOPER

42,480 shares

Net: 0 B/S: -

John Dinning

40,226 shares

Net: 0 B/S: -

Richard A Morton

37,182 shares

Net: 0 B/S: -

TIMOTHY C K CHOU

36,077 shares

Net: 0 B/S: -

Suzanne C Zoumaras

33,759 shares

Net: 0 B/S: -

Todd McElhatton

32,875 shares

Net: 0 B/S: -

JAMES M RINGLER

32,618 shares

Net: 0 B/S: -

Michael P Gianoni

31,523 shares

Net: -25,000 B/S: -

Eric P Tom

21,186 shares

Net: 0 B/S: -

Melissa B Fisher

2,475 shares

Net: +2,475 B/S: ∞

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Lake LP Lynrock	9,406,152	-10,514	-
STEPHEN MCMILLAN	782,446	+136,537	6.95
VICTOR L LUND	487,152	0	-
John Ederer	381,781	+73,562	∞
Sumeet Arora	304,097	+87,202	∞
MICHAEL KOEHLER	290,203	0	-
Mark Culhane	270,107	0	-
Daniel L Harrington	266,179	0	-
Richard J Petley	241,944	+66,339	∞
Scot Frazier Rogers	240,150	+170,456	∞
Michael D Hutchinson	220,004	+52,054	∞
Scott A Brown	194,880	0	-
Robert Fair	143,345	0	-
Kathleen R Cullen-Cote	142,707	0	-
Margaret A Treese	142,253	0	-
CLAIRE BRAMLEY	126,072	0	-
Oliver Ratzesberger	121,896	0	-
Todd Cione	119,422	0	-
Charles T Smotherman	114,618	0	-
Jacqueline D. Woods	112,626	0	-
Laura K Nyquist	102,331	0	-
JOHN SCHWARZ	101,779	0	-
Stephen Mark Scheppmann	96,624	0	-
Hermann Wimmer	96,036	0	-
WILLIAM S STAVROPOULOS	94,711	0	-
CARY T FU	84,534	0	-
Martyn Etherington	84,454	0	-
EDWARD P BOYKIN	82,432	0	-
Reema Poddar	76,572	0	-
Lisa R Bacus	75,104	0	-
Daniel R Fishback	67,522	0	-
Hillary Ashton	66,772	0	-
Joanne Beth Olsen	60,211	0	-
DAVID E KEPLER	58,806	0	-
Kimberly K. Nelson	53,185	0	-
Saundra Davis	47,922	0	-
NANCY E COOPER	42,480	0	-
John Dinning	40,226	0	-
Richard A Morton	37,182	0	-
TIMOTHY C K CHOU	36,077	0	-
Suzanne C Zoumaras	33,759	0	-
Todd McElhatton	32,875	0	-
JAMES M RINGLER	32,618	0	-
Michael P Gianoni	31,523	-25,000	-
Eric P Tom	21,186	0	-
Melissa B Fisher	2,475	+2,475	∞

Individual Transactions

March 09, 2026

STEPHEN MCMILLAN

Other Transaction

Change: -4,376

Price: $0.00

Shares: 782,446

Value: -$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
STEPHEN MCMILLAN	Mar 10	Other Transaction (J) Other	782,446	-4,376	$0.00	-$0

March 06, 2026

Richard J Petley

Tax Payment

Change: -3,180

Price: $28.02

Shares: 241,944

Value: -$89,103

Michael D Hutchinson

Tax Payment

Change: -3,727

Price: $28.02

Shares: 220,004

Value: -$104,430

STEPHEN MCMILLAN

Tax Payment

Change: -22,230

Price: $28.02

Shares: 786,822

Value: -$622,884

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Richard J Petley	Mar 10	Tax Payment (F) Tax Payment	241,944	-3,180	$28.02	-$89,103
Michael D Hutchinson	Mar 10	Tax Payment (F) Tax Payment	220,004	-3,727	$28.02	-$104,430
STEPHEN MCMILLAN	Mar 10	Tax Payment (F) Tax Payment	786,822	-22,230	$28.02	-$622,884

March 03, 2026

Richard J Petley

Tax Payment

Change: -13,309

Price: $30.36

Shares: 170,867

Value: -$404,061

Michael D Hutchinson

Tax Payment

Change: -15,208

Price: $30.36

Shares: 157,724

Value: -$461,714

STEPHEN MCMILLAN

Tax Payment

Change: -40,319

Price: $30.36

Shares: 602,781

Value: -$1,224,084

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Richard J Petley	Mar 05	Tax Payment (F) Tax Payment	170,867	-13,309	$30.36	-$404,061
Michael D Hutchinson	Mar 05	Tax Payment (F) Tax Payment	157,724	-15,208	$30.36	-$461,714
STEPHEN MCMILLAN	Mar 05	Tax Payment (F) Tax Payment	602,781	-40,319	$30.36	-$1,224,084

March 01, 2026

Sumeet Arora

Grant/Award Acquisition

Change: +66,007

Price: $0.00

Shares: 304,097

Value: +$0

Richard J Petley

Grant/Award Acquisition

Change: +74,257

Price: $0.00

Shares: 245,124

Value: +$0

Michael D Hutchinson

Grant/Award Acquisition

Change: +66,007

Price: $0.00

Shares: 223,731

Value: +$0

John Ederer

Grant/Award Acquisition

Change: +74,257

Price: $0.00

Shares: 381,781

Value: +$0

STEPHEN MCMILLAN

Grant/Award Acquisition

Change: +206,271

Price: $0.00

Shares: 809,052

Value: +$0

Scot Frazier Rogers

Grant/Award Acquisition

Change: +53,630

Price: $0.00

Shares: 240,150

Value: +$0

Melissa B Fisher

Grant/Award Acquisition

Change: +2,475

Price: $0.00

Shares: 2,475

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Sumeet Arora	Mar 10	Grant/Award Acquisition (A) Compensation/Award	304,097	+66,007	$0.00	+$0
Richard J Petley	Mar 10	Grant/Award Acquisition (A) Compensation/Award	245,124	+74,257	$0.00	+$0
Michael D Hutchinson	Mar 10	Grant/Award Acquisition (A) Compensation/Award	223,731	+66,007	$0.00	+$0
John Ederer	Mar 10	Grant/Award Acquisition (A) Compensation/Award	381,781	+74,257	$0.00	+$0
STEPHEN MCMILLAN	Mar 10	Grant/Award Acquisition (A) Compensation/Award	809,052	+206,271	$0.00	+$0
Scot Frazier Rogers	Mar 10	Grant/Award Acquisition (A) Compensation/Award	240,150	+53,630	$0.00	+$0
Melissa B Fisher	Mar 10	Grant/Award Acquisition (A) Compensation/Award	2,475	+2,475	$0.00	+$0

February 27, 2026

STEPHEN MCMILLAN

Tax Payment

Change: -20,090

Price: $31.49

Shares: 643,100

Value: -$632,634

Richard J Petley

Tax Payment

Change: -2,899

Price: $31.49

Shares: 184,176

Value: -$91,289

Michael D Hutchinson

Tax Payment

Change: -5,052

Price: $31.49

Shares: 172,932

Value: -$159,087

Insider	Filing Date	Transaction	Shares	Change	Price	Value
STEPHEN MCMILLAN	Mar 03	Tax Payment (F) Tax Payment	643,100	-20,090	$31.49	-$632,634
Richard J Petley	Mar 03	Tax Payment (F) Tax Payment	184,176	-2,899	$31.49	-$91,289
Michael D Hutchinson	Mar 03	Tax Payment (F) Tax Payment	172,932	-5,052	$31.49	-$159,087

February 26, 2026

STEPHEN MCMILLAN

Open Market Sale

Change: -50,000

Price: $30.26

Shares: 663,190

Value: -$1,513,125

Insider	Filing Date	Transaction	Shares	Change	Price	Value
STEPHEN MCMILLAN	Feb 27	Open Market Sale (S) Market Sale	663,190	-50,000	$30.26	-$1,513,125

February 24, 2026

Michael P Gianoni

Open Market Sale

Change: -25,000

Price: $29.97

Shares: 31,523

Value: -$749,125

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Michael P Gianoni	Feb 25	Open Market Sale (S) Market Sale	31,523	-25,000	$29.97	-$749,125

February 11, 2026

Sumeet Arora

Tax Payment

Change: -6,831

Price: $37.88

Shares: 238,090

Value: -$258,758

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Sumeet Arora	Feb 13	Tax Payment (F) Tax Payment	238,090	-6,831	$37.88	-$258,758