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Brilliant Earth Group

BRLT on Nasdaq. Market value $19m.

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Should I look at this?

We have not checked this company yet

This is not advice.

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Who owns it

1 long-term investor we follow owns it, unchanged from 1 last quarter. 37 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

2 investors own more than 5%.

  • Gavin Turner
    Passive investor
    at least 68.8%
    (filed with 5 related holders)
    Since 31 March 2025
  • Capital World Investors
    Passive investor
    6.4%
    Since 31 March 2025

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

In the last 12 months, 3 insiders bought $38,828 of shares on the open market. 3 sold $174,419, $110,069 of it under preset trading plans.

Cluster buy3 insiders bought within 30 days (13 August 2026 to 19 August 2026).
  • Gerstein Beth Tamara
    Chief Executive Officer, Director
    Bought
    Date
    19 August 2026
    Shares
    3,203
    Price
    $1.26
    Value
    $4,036
  • Grossberg Eric Scott
    Executive Chairman, Director
    Bought
    Date
    19 August 2026
    Shares
    381
    Price
    $1.26
    Value
    $480
  • Gerstein Beth Tamara
    Chief Executive Officer, Director
    Bought
    Date
    18 August 2026
    Shares
    6,797
    Price
    $1.25
    Value
    $8,496
  • Grossberg Eric Scott
    Executive Chairman, Director
    Bought
    Date
    18 August 2026
    Shares
    9,619
    Price
    $1.27
    Value
    $12,216
  • Dziesietnik Sharon
    Chief Operations Officer
    Sold
    under a preset trading plan
    Date
    17 August 2026
    Shares
    10,124
    Price
    $1.27
    Value
    $12,857
  • Kuo Jeffrey Chuenhong
    Chief Financial Officer
    Bought
    Date
    13 August 2026
    Shares
    10,000
    Price
    $1.36
    Value
    $13,600
  • TURNER GAVIN
    Director
    Sold
    Date
    10 August 2026
    Shares
    50,000
    Price
    $1.29
    Value
    $64,350
  • Harris Jennifer Noel
    Director
    Sold
    under a preset trading plan
    Date
    22 June 2026
    Shares
    18,336
    Price
    $1.03
    Value
    $18,886
  • Harris Jennifer Noel
    Director
    Sold
    under a preset trading plan
    Date
    18 June 2026
    Shares
    20,020
    Price
    $1.07
    Value
    $21,421
  • Dziesietnik Sharon
    Chief Operations Officer
    Sold
    under a preset trading plan
    Date
    18 May 2026
    Shares
    10,124
    Price
    $1.15
    Value
    $11,643

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 17 Mar 2026, plus the 10-Q filed 6 Aug 2026 and 4 later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.