Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Brilliant Earth Group, Inc.

BRLT · Nasdaq · CIK 0001866757 · Consumer Cyclical · Luxury Goods

INSIDER SIGNAL

No active buy signal

5 qualifying P purchase groups
in the current 180-day scoring window

20 Form 4 transaction lines observed in the same window
6 sales · 9 option, withholding, award, gift or other lines

Last qualifying purchase2026-08-19 · Gerstein Beth Tamara · $4.0K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying5 qualifying line group(s)
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
TURNER GAVINDirector,TenPercentOwner
○○▼○
MAINSAIL GP III, LLC; MAINSAIL INCENTIVE PROGRAM, LLC; MAINSAIL MANAGEMENT COMPANY, LLC; Mainsail Co-Investors III, L.P.; Mainsail Partners III, L.P.TenPercentOwner
○○▼○
Harris Jennifer NoelDirector
○▼▼
Grossberg Eric ScottExecutive Chairman
●●
Gerstein Beth TamaraChief Executive Officer
●●
Dziesietnik SharonChief Operations Officer
▼▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 3 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS3
PURCHASE CONCENTRATION35%Largest buyer: Kuo Jeffrey Chuenhong · $13.6K
CLUSTER BUYING · 15D3 insidersPeak activity: 2026-08-13–2026-08-19

Roles in the peak window: Chief Executive Officer, Chief Financial Officer, Executive Chairman. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-08-19 · Gerstein Beth Tamara.

Recent Form 4 activity

5Purchases
8Sales
11Other Form 4 lines
17SEC filings · 365 days
BUYING5 qualifying P line(s) · 180 days
SELLING6 sale line(s) · context only
OTHER9 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
53,535
Previous report
103,860
Avg daily volume
33,612
Days to cover
1.6

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-19Grossberg Eric ScottPurchase (P)Class A Common Stock381USD 1.26USD 480SEC filing ↗
2026-08-19Gerstein Beth TamaraPurchase (P)Class A Common Stock3,203USD 1.26USD 4,036SEC filing ↗
2026-08-18Grossberg Eric ScottPurchase (P)Class A Common Stock9,619USD 1.27USD 12,216SEC filing ↗
2026-08-18Gerstein Beth TamaraPurchase (P)Class A Common Stock6,797USD 1.25USD 8,496SEC filing ↗
2026-08-13Kuo Jeffrey ChuenhongPurchase (P)Class A Common Stock10,000USD 1.36USD 13,600SEC filing ↗
2022-05-27Bickley IanPurchase (P)Class A Common Stock20,000USD 4.53USD 90,600SEC filing ↗
2021-11-19Bickley IanPurchase (P)Class A Common Stock20,000USD 17.99USD 359,800SEC filing ↗
2021-09-27Jaques AtticaPurchase (P)Class A Common Stock300USD 12.00USD 3,600SEC filing ↗
2021-09-27Harris Jennifer NoelPurchase (P)Class A Common Stock5,000USD 12.00USD 60,000SEC filing ↗
2021-09-27Bickley IanPurchase (P)Class A Common Stock10,000USD 12.00USD 120,000SEC filing ↗

Form 4 evidence

24 transaction lines in the latest 365-day window; 406 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-24TURNER GAVINJ (J)Class B Common Stock16,014USD —USD —SEC filing ↗
2026-08-24MAINSAIL GP III, LLC; MAINSAIL INCENTIVE PROGRAM, LLC; MAINSAIL MANAGEMENT COMPANY, LLC; Mainsail Co-Investors III, L.P.; Mainsail Partners III, L.P.J (J)Class B Common Stock16,014USD —USD —SEC filing ↗
2026-08-19Grossberg Eric ScottPurchase (P)Class A Common Stock381USD 1.26USD 480SEC filing ↗
Show recent Form 4 evidence (24 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-24TURNER GAVINJ (J)Class B Common Stock16,014USD —USD —SEC filing ↗
2026-08-24MAINSAIL GP III, LLC; MAINSAIL INCENTIVE PROGRAM, LLC; MAINSAIL MANAGEMENT COMPANY, LLC; Mainsail Co-Investors III, L.P.; Mainsail Partners III, L.P.J (J)Class B Common Stock16,014USD —USD —SEC filing ↗
2026-08-19Grossberg Eric ScottPurchase (P)Class A Common Stock381USD 1.26USD 480SEC filing ↗
2026-08-19Gerstein Beth TamaraPurchase (P)Class A Common Stock3,203USD 1.26USD 4,036SEC filing ↗
2026-08-18Grossberg Eric ScottPurchase (P)Class A Common Stock9,619USD 1.27USD 12,216SEC filing ↗
2026-08-18Gerstein Beth TamaraPurchase (P)Class A Common Stock6,797USD 1.25USD 8,496SEC filing ↗
2026-08-17Dziesietnik SharonSale (S)Class A Common Stock10,124USD 1.27USD 12,857SEC filing ↗
2026-08-13Kuo Jeffrey ChuenhongPurchase (P)Class A Common Stock10,000USD 1.36USD 13,600SEC filing ↗
2026-08-10TURNER GAVINSale (S)Class A Common Stock50,000USD 1.29USD 64,500SEC filing ↗
2026-08-10TURNER GAVINC (C)Class B Common Stock50,000USD —USD —SEC filing ↗
2026-08-10TURNER GAVINC (C)Class A Common Stock50,000USD —USD —SEC filing ↗
2026-08-10MAINSAIL GP III, LLC; MAINSAIL INCENTIVE PROGRAM, LLC; MAINSAIL MANAGEMENT COMPANY, LLC; Mainsail Co-Investors III, L.P.; Mainsail Partners III, L.P.Sale (S)Class A Common Stock50,000USD 1.29USD 64,500SEC filing ↗
2026-08-10MAINSAIL GP III, LLC; MAINSAIL INCENTIVE PROGRAM, LLC; MAINSAIL MANAGEMENT COMPANY, LLC; Mainsail Co-Investors III, L.P.; Mainsail Partners III, L.P.C (C)Class B Common Stock50,000USD —USD —SEC filing ↗
2026-08-10MAINSAIL GP III, LLC; MAINSAIL INCENTIVE PROGRAM, LLC; MAINSAIL MANAGEMENT COMPANY, LLC; Mainsail Co-Investors III, L.P.; Mainsail Partners III, L.P.C (C)Class A Common Stock50,000USD —USD —SEC filing ↗
2026-06-22Harris Jennifer NoelSale (S)Class A Common Stock18,336USD 1.03USD 18,886SEC filing ↗
2026-06-18Harris Jennifer NoelSale (S)Class A Common Stock20,020USD 1.07USD 21,421SEC filing ↗
2026-06-17KAPLAN BETH JAward / grant (A)Class A Common Stock72,519USD 0.00USD 0SEC filing ↗
2026-06-17Jaques AtticaAward / grant (A)Class A Common Stock72,519USD 0.00USD 0SEC filing ↗
2026-06-17Harris Jennifer NoelAward / grant (A)Class A Common Stock72,519USD 0.00USD 0SEC filing ↗
2026-05-18Dziesietnik SharonSale (S)Class A Common Stock10,124USD 1.15USD 11,643SEC filing ↗
2026-03-06Kuo Jeffrey ChuenhongAward / grant (A)Class A Common Stock112,582USD 0.00USD 0SEC filing ↗
2026-03-06Dziesietnik SharonAward / grant (A)Class A Common Stock105,960USD 0.00USD 0SEC filing ↗
2026-02-18Dziesietnik SharonSale (S)Class A Common Stock19,687USD 1.37USD 26,971SEC filing ↗
2025-11-17Dziesietnik SharonSale (S)Class A Common Stock9,191USD 1.99USD 18,290SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerBRLT
CIK0001866757
SectorConsumer Cyclical
IndustryLuxury Goods Yahoo Finance
SEC SIC3910 Jewelry, Silverware & Plated Ware
ExchangeNasdaq

Data coverage

Local Form 4 history406 transaction lines from 2021-09-27 to 2026-08-24
10 P purchase lines · 81 S sale lines · 315 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.