Last updated: 5 September 2024 at 4:48pm EST

Thomas Seifert Net Worth




The estimated Net Worth of Thomas J Seifert is at least $194 Million dollars as of 4 September 2024. Mr. Seifert owns over 15,000 units of Cloudflare Inc stock worth over $22,107,020 and over the last 15 years he sold NET stock worth over $171,078,818. In addition, he makes $650,000 as Chief Financial Officer at Cloudflare Inc.

Mr. Seifert NET stock SEC Form 4 insiders trading

Thomas has made over 107 trades of the Cloudflare Inc stock since 2011, according to the Form 4 filled with the SEC. Most recently he sold 15,000 units of NET stock worth $1,170,750 on 4 September 2024.

The largest trade he's ever made was selling 118,832 units of Cloudflare Inc stock on 16 February 2021 worth over $9,912,965. On average, Thomas trades about 16,326 units every 34 days since 2009. As of 4 September 2024 he still owns at least 281,403 units of Cloudflare Inc stock.

You can see the complete history of Mr. Seifert stock trades at the bottom of the page.





Thomas Seifert biography

Thomas J. Seifert is Chief Financial Officer of the Company. Mr. Seifert has served as our Chief Financial Officer since June 2017. Prior to joining us, he served as Executive Vice President and Chief Financial Officer of Symantec Corporation, a provider of cybersecurity software and services, from March 2014 to November 2016 and served in an advisory capacity to Symantec from December 2016 to March 2017. From December 2012 to March 2014, Mr. Seifert served as Executive Vice President and Chief Financial Officer of Brightstar Corp., a wireless distribution and services company. From October 2009 to September 2012, he served as Senior Vice President and Chief Financial Officer at Advanced Micro Devices Inc., a semiconductor company, where he additionally served as Interim Chief Executive Officer from January 2011 to August 2011. Mr. Seifert currently serves as a member of the board of directors of IPG Photonics Corporation, a manufacturer of fiber lasers, and CompuGroup Medical SE, an eHealth provider. Mr. Seifert holds a B.A. in Business Administration and an M.B.A. from Friedrich Alexander University in Germany, and an M.A. in Mathematics and Economics from Wayne State University.

What is the salary of Thomas Seifert?

As the Chief Financial Officer of Cloudflare Inc, the total compensation of Thomas Seifert at Cloudflare Inc is $650,000. There are 3 executives at Cloudflare Inc getting paid more, with Douglas Kramer having the highest compensation of $3,186,500.



How old is Thomas Seifert?

Thomas Seifert is 56, he's been the Chief Financial Officer of Cloudflare Inc since . There are 4 older and 9 younger executives at Cloudflare Inc. The oldest executive at Cloudflare Inc is Stanley Meresman, 73, who is the Independent Director.

What's Thomas Seifert's mailing address?

Thomas's mailing address filed with the SEC is C/O CLOUDFLARE, INC., 405 COMAL STREET, AUSTIN, TX, 78702.

Insiders trading at Cloudflare Inc

Over the last 5 years, insiders at Cloudflare Inc have traded over $2,193,706,013 worth of Cloudflare Inc stock and bought 15,000 units worth $941,550 . The most active insiders traders include Forest Baskett, Scott D Sandell, and Patrick J Kerins. On average, Cloudflare Inc executives and independent directors trade stock every 4 days with the average trade being worth of $8,329,167. The most recent stock trade was executed by Michelle Zatlyn on 9 September 2024, trading 38,460 units of NET stock currently worth $2,934,498.



What does Cloudflare Inc do?

cloudflare is the simplest way to make websites faster, safer and smarter. millions of websites have signed up for our service, including large enterprises, major consumer destinations, and government agencies. with offices in san francisco and london, cloudflare operates a highly-available global network that has security measures built into every layer and regularly clocks in lightning-fast speeds. our network also: ...serves hundreds of billions of page views per month ...reaches 90% of the world’s population in less than .23 seconds ...sees more than 750m unique ips per month ...has successfully defended against the largest ddos attack publicly recorded we're on a mission to build a better web - and we need smart, talented people to join our team. our team works on the forefront of leading technologies including nginx, go and lua programming languages. we're a strong supporter of the open source community and regularly share our technology learnings at https://blog.cloud



What does Cloudflare Inc's logo look like?

Cloudflare Inc logo

Complete history of Mr. Seifert stock trades at Advanced Micro Devices, IPG Photonics Corp, and Cloudflare Inc

Date
#
Company
Insider
Trans.
Transaction
Shares Price per share Total value Shares after Source
4 Sep 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $78.05 $1,170,750
4 Sep 2024
281,403
20 Aug 2024 Thomas J Seifert
Chief Financial Officer
Sale 28,636 $82.84 $2,372,206
20 Aug 2024
281,403
2 Aug 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $78.71 $1,180,650
2 Aug 2024
309,937
18 Jul 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $78.89 $1,183,350
18 Jul 2024
309,937
3 Jul 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $84.97 $1,274,550
3 Jul 2024
309,937
20 Jun 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $78.47 $1,177,050
20 Jun 2024
309,937
5 Jun 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $69.12 $1,036,800
5 Jun 2024
309,937
20 May 2024 Thomas J Seifert
Chief Financial Officer
Sale 28,634 $75.13 $2,151,272
20 May 2024
309,937
3 May 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $73.97 $1,109,550
3 May 2024
338,469
18 Apr 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $87.02 $1,305,300
18 Apr 2024
338,469
3 Apr 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $94.91 $1,423,650
3 Apr 2024
338,469
15 Mar 2024 Thomas J Seifert
Chief Financial Officer
Sale 110,000 $91.77 $10,094,700
15 Mar 2024
0
4 Mar 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $99.87 $1,498,050
4 Mar 2024
338,469
20 Feb 2024 Thomas J Seifert
Chief Financial Officer
Sale 27,901 $96.56 $2,694,121
20 Feb 2024
338,469
9 Feb 2024 Thomas J Seifert
Chief Financial Officer
Sale 50,000 $110.11 $5,505,500
9 Feb 2024
366,465
2 Feb 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $81.87 $1,228,050
2 Feb 2024
366,465
18 Jan 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $77.73 $1,165,950
18 Jan 2024
243,495
3 Jan 2024 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $76.80 $1,152,000
3 Jan 2024
243,495
18 Dec 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $84.86 $1,272,900
18 Dec 2023
243,495
13 Dec 2023 Thomas J Seifert
Chief Financial Officer
Sale 34,329 $80.21 $2,753,529
13 Dec 2023
243,495
6 Dec 2023 Thomas J Seifert
Chief Financial Officer
Sale 400 $80.00 $32,000
6 Dec 2023
243,495
4 Dec 2023 Thomas J Seifert
Chief Financial Officer
Sale 30,271 $79.70 $2,412,599
4 Dec 2023
243,495
17 Nov 2023 Thomas J Seifert
Chief Financial Officer
Sale 16,901 $72.13 $1,219,069
17 Nov 2023
243,495
3 Nov 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $63.18 $947,700
3 Nov 2023
253,352
18 Oct 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $63.03 $945,450
18 Oct 2023
253,352
3 Oct 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $59.23 $888,450
3 Oct 2023
253,352
18 Sep 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $61.75 $926,250
18 Sep 2023
253,352
5 Sep 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $64.53 $967,950
5 Sep 2023
253,352
18 Aug 2023 Thomas J Seifert
Chief Financial Officer
Sale 16,901 $58.33 $985,835
18 Aug 2023
253,352
3 Aug 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $64.86 $972,900
3 Aug 2023
263,209
18 Jul 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $72.24 $1,083,600
18 Jul 2023
263,209
3 Jul 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $65.60 $984,000
3 Jul 2023
263,209
20 Jun 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $67.28 $1,009,200
20 Jun 2023
263,209
5 Jun 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $68.88 $1,033,200
5 Jun 2023
263,209
18 May 2023 Thomas J Seifert
Chief Financial Officer
Sale 16,900 $57.35 $969,215
18 May 2023
263,209
3 May 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $42.33 $634,950
3 May 2023
266,343
18 Apr 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $64.49 $967,350
18 Apr 2023
61,355
30 Mar 2023 Thomas J Seifert
Chief Financial Officer
Sale 65,000 $60.26 $3,916,900
30 Mar 2023
61,355
20 Mar 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $53.57 $803,550
20 Mar 2023
61,355
27 Feb 2023 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $60.25 $1,205,000
27 Feb 2023
61,355
15 Feb 2023 Thomas J Seifert
Chief Financial Officer
Sale 15,209 $64.65 $983,262
15 Feb 2023
61,355
13 Feb 2023 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $62.62 $1,252,400
13 Feb 2023
86,433
30 Jan 2023 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $50.94 $1,018,800
30 Jan 2023
86,433
17 Jan 2023 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $45.07 $901,400
17 Jan 2023
86,433
19 Dec 2022 Thomas J Seifert
Chief Financial Officer
Sale 40,000 $44.53 $1,781,200
19 Dec 2022
86,433
5 Dec 2022 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $44.53 $890,600
5 Dec 2022
86,433
21 Nov 2022 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $45.62 $912,400
21 Nov 2022
86,433
11 Nov 2022 Thomas J Seifert
Chief Financial Officer
Sale 50,000 $50.15 $2,507,500
11 Nov 2022
88,415
7 Nov 2022 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $40.78 $815,600
7 Nov 2022
86,433
12 Apr 2022 Thomas J Seifert
Chief Financial Officer
Sale 10,000 $115.06 $1,150,600
12 Apr 2022
86,433
29 Mar 2022 Thomas J Seifert
Chief Financial Officer
Sale 10,000 $129.35 $1,293,500
29 Mar 2022
86,433
17 Mar 2022 Thomas J Seifert
Chief Financial Officer
Sale 10,000 $100.00 $1,000,000
17 Mar 2022
86,433
17 Feb 2022 Thomas J Seifert
Chief Financial Officer
Sale 10,000 $106.23 $1,062,300
17 Feb 2022
86,433
18 Jan 2022 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $95.51 $1,910,200
18 Jan 2022
50,156
4 Jan 2022 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $114.38 $2,287,600
4 Jan 2022
50,156
21 Dec 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $139.54 $2,790,800
21 Dec 2021
50,156
7 Dec 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $157.04 $3,140,800
7 Dec 2021
50,156
23 Nov 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $183.68 $3,673,600
23 Nov 2021
50,156
9 Nov 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $204.31 $4,086,200
9 Nov 2021
50,156
26 Oct 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $186.36 $3,727,200
26 Oct 2021
50,156
12 Oct 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $148.42 $2,968,400
12 Oct 2021
50,156
28 Sep 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $114.43 $2,288,600
28 Sep 2021
50,156
14 Sep 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $127.31 $2,546,200
14 Sep 2021
50,156
30 Aug 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $121.48 $2,429,600
30 Aug 2021
50,156
17 Aug 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $119.37 $2,387,400
17 Aug 2021
50,156
3 Aug 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $118.76 $2,375,200
3 Aug 2021
50,156
20 Jul 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $106.77 $2,135,400
20 Jul 2021
50,156
6 Jul 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $108.06 $2,161,200
6 Jul 2021
50,156
24 Jun 2021 Thomas J Seifert
Chief Financial Officer
Sale 50,000 $105.28 $5,264,000
24 Jun 2021
50,156
22 Jun 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $102.28 $2,045,600
22 Jun 2021
50,156
14 Jun 2021 Thomas J Seifert
Chief Financial Officer
Sale 50,000 $95.19 $4,759,500
14 Jun 2021
50,156
8 Jun 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $89.48 $1,789,600
8 Jun 2021
50,156
25 May 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $79.72 $1,594,400
25 May 2021
50,156
11 May 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $70.07 $1,401,400
11 May 2021
50,156
27 Apr 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $86.94 $1,738,800
27 Apr 2021
50,156
13 Apr 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $74.80 $1,496,000
13 Apr 2021
50,156
30 Mar 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $65.19 $1,303,800
30 Mar 2021
50,156
16 Mar 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $75.21 $1,504,200
16 Mar 2021
50,156
2 Mar 2021 Thomas J Seifert
Chief Financial Officer
Sale 20,000 $75.74 $1,514,800
2 Mar 2021
50,156
19 Feb 2021 Thomas J Seifert
Chief Financial Officer
Sale 1,168 $85.28 $99,607
19 Feb 2021
50,156
16 Feb 2021 Thomas J Seifert
Chief Financial Officer
Sale 118,832 $83.42 $9,912,965
16 Feb 2021
50,156
27 Oct 2020 Thomas J Seifert
Chief Financial Officer
Sale 30,000 $56.02 $1,680,600
27 Oct 2020
0
13 Oct 2020 Thomas J Seifert
Chief Financial Officer
Sale 30,000 $58.22 $1,746,600
13 Oct 2020
0
29 Sep 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $40.92 $613,800
29 Sep 2020
0
15 Sep 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $35.79 $536,850
15 Sep 2020
0
1 Sep 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $39.75 $596,250
1 Sep 2020
0
18 Aug 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $39.96 $599,400
18 Aug 2020
0
4 Aug 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $42.05 $630,750
4 Aug 2020
0
21 Jul 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $38.33 $574,950
21 Jul 2020
0
7 Jul 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $38.04 $570,600
7 Jul 2020
0
23 Jun 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $35.71 $535,650
23 Jun 2020
0
9 Jun 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $28.73 $430,950
9 Jun 2020
0
26 May 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $28.05 $420,750
26 May 2020
0
12 May 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $29.13 $436,950
12 May 2020
0
28 Apr 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $23.61 $354,150
28 Apr 2020
0
14 Apr 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $23.21 $348,150
14 Apr 2020
0
31 Mar 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $24.60 $369,000
31 Mar 2020
0
17 Mar 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $18.00 $270,000
17 Mar 2020
0
3 Mar 2020 Thomas J Seifert
Chief Financial Officer
Sale 15,000 $21.97 $329,550
3 Mar 2020
0
7 Dec 2020 Thomas J Seifert
Director
Sale 11,370 $212.98 $2,421,583
7 Dec 2020
5,114
5 Jun 2017 Thomas J Seifert
Director
Sale 2,849 $141.47 $403,048
5 Jun 2017
6,331
1 Jun 2017 Thomas J Seifert
Director
Sale 3,950 $139.87 $552,487
1 Jun 2017
5,640
30 Jan 2017 Thomas J Seifert
Director
Option 6,967 $74.17 $516,742
30 Jan 2017
11,300
15 Dec 2016 Thomas J Seifert
Director
Sale 990 $100.02 $99,020
15 Dec 2016
6,588
9 May 2012 Thomas J Seifert
SVP and CFO
Option 92,786 $6.86 $636,512
9 May 2012
176,383
9 Nov 2011 Thomas J Seifert
SVP and CFO
Option 41,662 $5.38 $224,142
9 Nov 2011
98,782
9 May 2011 Thomas J Seifert
SVP and CFO
Option 41,662 $8.94 $372,458
9 May 2011
72,305


Cloudflare Inc executives and stock owners

Cloudflare Inc executives and other stock owners filed with the SEC include: