BUCKMAN FREDERICK W

SEC Form 4 insider trading activity

BUCKMAN FREDERICK W has filed 1 SEC Form 4 filing (1 transaction rows) across 1 company, with disclosures dating back to 2026. 1 of those filings fall inside the rolling window. Most recent filing: Oct 13, 2026.

On the most recent filing, BUCKMAN FREDERICK W is listed as Director at Terrestrial Energy Inc. Inside the rolling window, BUCKMAN FREDERICK W reported 1 open-market purchase totaling $39K in IMSR and no open-market sales.

Companies traded

Other insiders at IMSR

Insider Buying

$39K

reported purchases (SEC code P)

Insider Selling

$0

reported sales (SEC code S)

Companies

1

in the rolling window

Source
IMSR
BUCKMAN FREDERICK W
Purchase$39KOct 13SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has BUCKMAN FREDERICK W made?

BUCKMAN FREDERICK W has filed 1 SEC Form 4 filing (1 transaction rows) across 1 company since 2026.

Which companies does BUCKMAN FREDERICK W trade?

BUCKMAN FREDERICK W has filed SEC Form 4 disclosures for 1 company, including IMSR.

When was BUCKMAN FREDERICK W's most recent SEC Form 4 filing?

BUCKMAN FREDERICK W's most recent SEC Form 4 filing on Tracefour is dated Oct 13, 2026.

What is BUCKMAN FREDERICK W's total buy and sell value in the current window?

Inside the rolling retention window, BUCKMAN FREDERICK W bought $39K and sold $0 based on SEC Form 4 filings.

What was BUCKMAN FREDERICK W's largest disclosed transaction?

The largest disclosed transaction in the current window is a purchase of 12,000 IMSR shares on 2026-10-09, worth $39K, per SEC Form 4 filings.