Who
Barbara Humpton
Former Chief Executive Officer
Company insider
Files Form 4 as: Former Chief Executive Officer, USA Rare Earth; Director, MARA Holdings; Director, Triumph Group; Director, Fluence Energy.
In numbers
- Trades disclosed
- 22
- Buys
- 1
- Sells
- 1
- Bought
- $112K
- Sold
- $1.2M
- Companies
- 4
- Companies where not an officer
- 3
- First trade
- 30 Sep 2019
- Last trade
- 2 Oct 2026
- Last filed
- 5 Oct 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 2 Oct 2026filed 5 Oct 2026 | USAR USA Rare EarthRare Earths & Critical Minerals | SEC FORM 4 Sold | $1.2M88,391 at $13.75 | filing |
| 1 Oct 2026filed 5 Oct 2026 | USAR USA Rare EarthRare Earths & Critical Minerals | SEC FORM 4 Code M | $1.2M83,554 at $13.80 | filing |
| 1 Oct 2026filed 5 Oct 2026 | USAR USA Rare EarthRare Earths & Critical Minerals | SEC FORM 4 Code M | $1.4M104,443 at $13.80 | filing |
| 1 Oct 2026filed 5 Oct 2026 | USAR USA Rare EarthRare Earths & Critical Minerals | SEC FORM 4 Code M | $432K31,333 at $13.80 | filing |
| 1 Oct 2026filed 5 Oct 2026 | USAR USA Rare Earthoption or derivative · Rare Earths & Critical Minerals | SEC FORM 4 Code M | —83,554 at $0.00 | filing |
| 1 Oct 2026filed 5 Oct 2026 | USAR USA Rare Earthoption or derivative · Rare Earths & Critical Minerals | SEC FORM 4 Code M | —104,443 at $0.00 | filing |
| 1 Oct 2026filed 5 Oct 2026 | USAR USA Rare Earthoption or derivative · Rare Earths & Critical Minerals | SEC FORM 4 Code M | —31,333 at $0.00 | filing |
| 13 Feb 2026filed 13 Feb 2026 | MARA MARA HoldingsCrypto miners & infra | SEC FORM 4 Code A | —82,759 at $0.00 | filing |
| 13 Feb 2026filed 13 Feb 2026 | MARA MARA HoldingsCrypto miners & infra | SEC FORM 4 Code A | —82,759 at $0.00 | filing |
| 1 Oct 2025filed 3 Oct 2025 | USAR USA Rare Earthoption or derivative · Rare Earths & Critical Minerals | SEC FORM 4 Code A | —250,662 at $0.00 | filing |
| 1 Oct 2025filed 3 Oct 2025 | USAR USA Rare Earthoption or derivative · Rare Earths & Critical Minerals | SEC FORM 4 Code A | —313,327 at $0.00 | filing |
| 1 Oct 2025filed 3 Oct 2025 | USAR USA Rare Earthoption or derivative · Rare Earths & Critical Minerals | SEC FORM 4 Code A | —62,666 at $0.00 | filing |
| 24 Jul 2025filed 28 Jul 2025 | Triumph Group | SEC FORM 4 Code D | —62,114 | filing |
| 28 Feb 2025filed 28 Feb 2025 | MARA MARA HoldingsCrypto miners & infra | SEC FORM 4 Code A | —43,103 at $0.00 | filing |
| 20 Dec 2024filed 26 Dec 2024 | MARA MARA HoldingsCrypto miners & infra | SEC FORM 4 Code A | —10,477 at $0.00 | filing |
| 8 Aug 2024filed 12 Aug 2024 | Triumph Group | SEC FORM 4 Code A | —10,324 at $0.00 | filing |
| 25 Jul 2023filed 27 Jul 2023 | Triumph Group | SEC FORM 4 Code A | —11,854 at $0.00 | filing |
| 15 Jul 2022filed 19 Jul 2022 | Triumph Group | SEC FORM 4 Code A | —10,853 at $0.00 | filing |
| 1 Nov 2021filed 3 Nov 2021 | FLNC Fluence EnergyElectronic Components & EMS | SEC FORM 4 Bought | $112K4,000 at $28.00 | filing |
| 21 Jul 2021filed 22 Jul 2021 | Triumph Group | SEC FORM 4 Code A | —7,209 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.