Frederick G. Thiel
CEO at MARA Holdings Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: MARA Holdings Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
MARA Holdings Inc. June 27, 202494.5%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 4, 2026 | MARA Holdings Inc. | Shares withheld for tax | −67,704 | $6.43 | $435,337 |
| Nov 2, 2026 | MARA Holdings Inc. | Open-market sale | −27,505 | $6.79 | $186,759 |
| Oct 30, 2026 | MARA Holdings Inc. | Shares withheld for tax | −40,496 | $6.77 | $274,158 |
| Oct 1, 2026 | MARA Holdings Inc. | Open-market sale | −27,505 | $11.22 | $308,606 |
| Sep 30, 2026 | MARA Holdings Inc. | Shares withheld for tax | −63,101 | $11.33 | $714,934 |
| Sep 17, 2026 | MARA Holdings Inc. | Open-market sale | −27,505 | $11.45 | $314,932 |
| Aug 17, 2026 | MARA Holdings Inc. | Open-market sale | −27,505 | $9.21 | $253,321 |
| Aug 3, 2026 | MARA Holdings Inc. | Shares withheld for tax | −27,316 | $11.75 | $320,963 |
| Jul 31, 2026 | MARA Holdings Inc. | Shares withheld for tax | −40,388 | $11.32 | $457,192 |
| Jul 30, 2026 | MARA Holdings Inc. | Shares withheld for tax | −40,497 | $11.82 | $478,675 |
| Jul 17, 2026 | MARA Holdings Inc. | Open-market sale | −27,505 | $10.90 | $299,805 |
| Jul 1, 2026 | MARA Holdings Inc. | Shares withheld for tax | −63,101 | $13.89 | $876,473 |
| Jun 17, 2026 | MARA Holdings Inc. | Open-market sale | −27,505 | $14.25 | $391,946 |
| May 18, 2026 | MARA Holdings Inc. | Shares withheld for tax | −27,316 | $11.46 | $313,041 |
| May 18, 2026 | MARA Holdings Inc. | Open-market sale | −27,505 | $12.00 | $330,060 |
Questions about Frederick G. Thiel
What boards is Frederick G. Thiel on?
Frederick G. Thiel sits on the board of MARA Holdings Inc.
What company is Frederick G. Thiel the CEO of?
Frederick G. Thiel is CEO of MARA Holdings Inc.
How long has Frederick G. Thiel served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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