Bremner Thomas S

SEC Form 4 insider trading activity

Bremner Thomas S has filed 2 SEC Form 4 filings (31 transaction rows) across 1 company, with disclosures dating back to 2025. 2 of those filings fall inside the rolling window. Most recent filing: Jun 12, 2026.

On the most recent filing, Bremner Thomas S is listed as Director at BillionToOne, Inc. Inside the rolling window, Bremner Thomas S reported 1 open-market purchase totaling $2.5M in BLLN and no open-market sales.

Companies traded

Other insiders at BLLN

Insider Buying

$2.5M

reported purchases (SEC code P)

Insider Selling

$0

reported sales (SEC code S)

Companies

1

in the rolling window

Source
BLLNPurchase$2.5MNov 10SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has Bremner Thomas S made?

Bremner Thomas S has filed 2 SEC Form 4 filings (31 transaction rows) across 1 company since 2025.

Which companies does Bremner Thomas S trade?

Bremner Thomas S has filed SEC Form 4 disclosures for 1 company, including BLLN.

When was Bremner Thomas S's most recent SEC Form 4 filing?

Bremner Thomas S's most recent SEC Form 4 filing on Tracefour is dated Jun 12, 2026.

What is Bremner Thomas S's total buy and sell value in the current window?

Inside the rolling retention window, Bremner Thomas S bought $2.5M and sold $0 based on SEC Form 4 filings.

What was Bremner Thomas S's largest disclosed transaction?

The largest disclosed transaction in the current window is a purchase of 41,666 BLLN shares on 2025-11-07, worth $2.5M, per SEC Form 4 filings.