Follow the people · Insider
MAINSAIL GP III, LLC
MAINSAIL GP III, LLC files insider transactions with the SEC as a 10% owner of Brilliant Earth Group (BRLT). We hold 1 disclosed purchase or sale filed since 28 September 2021, 1 of them in the last 90 days.
- Files forBRLT
- Disclosed buys and sells1 in all, 1 in the last 90 days
- Last disclosure26 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 27 September 2021 — 24 August 202610% owner · Brilliant Earth Group (BRLT)16 Form 4 lines · source: SEC Form 4
Everything they disclosed
16 entries, newest first — one per disclosure report, one per Form 4 line- acquired or disposed of, other 16,014 shares of Brilliant Earth GroupSEC Form 426 August 2026Class B Common Stock · traded 24 August 2026 · filed 26 August 2026
- acquired or disposed of, other 16,014 shares of Brilliant Earth Group (a derivative holding)SEC Form 426 August 2026LLC Units · traded 24 August 2026 · filed 26 August 2026
- converted 50,000 shares of Brilliant Earth GroupSEC Form 412 August 2026Class B Common Stock · traded 10 August 2026 · filed 12 August 2026
- converted 50,000 shares of Brilliant Earth GroupSEC Form 412 August 2026Class A Common Stock · traded 10 August 2026 · filed 12 August 2026
- ▼ sold on the open market 50,000 shares of Brilliant Earth GroupSEC Form 412 August 2026Class A Common Stock · traded 10 August 2026 · filed 12 August 2026
- converted 50,000 shares of Brilliant Earth Group (a derivative holding)SEC Form 412 August 2026LLC Units · traded 10 August 2026 · filed 12 August 2026
- converted 15,133 shares of Brilliant Earth Group (a derivative holding)SEC Form 421 December 2023LLC Units · traded 19 December 2023 · filed 21 December 2023
- converted 8,233 shares of Brilliant Earth Group (a derivative holding)SEC Form 421 December 2023LLC Units · traded 21 December 2023 · filed 21 December 2023
- converted 15,133 shares of Brilliant Earth GroupSEC Form 421 December 2023Class B Common Stock · traded 19 December 2023 · filed 21 December 2023
- converted 15,133 shares of Brilliant Earth GroupSEC Form 421 December 2023Class A Common Stock · traded 19 December 2023 · filed 21 December 2023
- ▼ sold on the open market 15,133 shares of Brilliant Earth GroupSEC Form 421 December 2023Class A Common Stock · traded 19 December 2023 · filed 21 December 2023
- converted 8,233 shares of Brilliant Earth GroupSEC Form 421 December 2023Class B Common Stock · traded 21 December 2023 · filed 21 December 2023
- converted 8,233 shares of Brilliant Earth GroupSEC Form 421 December 2023Class A Common Stock · traded 21 December 2023 · filed 21 December 2023
- ▼ sold on the open market 8,233 shares of Brilliant Earth GroupSEC Form 421 December 2023Class A Common Stock · traded 21 December 2023 · filed 21 December 2023
- returned to the issuer 469,824 shares of Brilliant Earth Group (a derivative holding)SEC Form 428 September 2021LLC Units · traded 27 September 2021 · filed 28 September 2021
- returned to the issuer 469,824 shares of Brilliant Earth GroupSEC Form 428 September 2021Class B Common Stock · traded 27 September 2021 · filed 28 September 2021
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.