Insider · CIK 0001570211
Mainsail Co-Investors III, L.P.
Files at BRLT (Brilliant Earth Group, Inc.). First filing -, latest -.
Mainsail Co-Investors III, L.P. files SEC Form 4 as 10% owner at BRLT (Brilliant Earth Group, Inc.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Mainsail Co-Investors III, L.P. has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 10, 2026 | BRLT Brilliant Earth Group, Inc. | 1,079 0.01% of outstanding | $1,381 | Aug 10, 2026 | none |
Transactions
Every row this insider has filed, 0 in all, newest first.
Questions about Mainsail Co-Investors III, L.P.
Answered from the filings on this page, as of the latest one.
Is Mainsail Co-Investors III, L.P. buying or selling?
Mainsail Co-Investors III, L.P. has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Mainsail Co-Investors III, L.P.'s past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mainsail Co-Investors III, L.P. has 0.
Where does Mainsail Co-Investors III, L.P. file Form 4?
Mainsail Co-Investors III, L.P. has filed Form 4 at BRLT (Brilliant Earth Group, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.