InsiderCEO

Luc Seraphin Insider Trading Activity

Every SEC Form 4 transaction reported by Luc Seraphin, sourced directly from SEC EDGAR and updated as new filings are accepted.

By · SEC Form 4 & insider trading data analysts
Last updated:

Quick Answer

Is Luc Seraphin buying or selling?

Luc Seraphin reported 0 open-market buys ($0) and 52 sells ($25.6M) across 52 Form 4 filings at 1 company — a net selling position of $25.6M.

Source: SEC EDGAR Form 4

Key Statistics (as of Apr 4, 2026)

Total Form 4 filings
52
SEC EDGAR
Companies
1
Buys (0)
$0
Sells (52)
$25.6M

Insider sentiment

Net selling

Net insider flow of $25.6M in net selling, filed between Mar 14, 2019 – Apr 4, 2026.

Companies Luc Seraphin files for

#CompanyForm 4 filings
1RMBSRAMBUS INC52

Recent Luc Seraphin transactions

DateTickerRoleTypeSharesValue
Apr 4, 2026RMBSPresident and CEOSale5.4K$470.2K
Mar 4, 2026RMBSPresident and CEOSale39.9K$3.9M
Apr 24, 2025RMBSPresident and CEOSale7.6K$354.6K
Apr 16, 2025RMBSPresident and CEOSale10.0K$477.9K
Apr 9, 2025RMBSPresident and CEOSale10.0K$468.1K
Apr 3, 2025RMBSPresident and CEOSale10.0K$508.8K
Mar 26, 2025RMBSPresident and CEOSale10.0K$586.4K
Mar 19, 2025RMBSPresident and CEOSale10.0K$537.9K
Apr 17, 2024RMBSPresident and CEOSale5.5K$324.4K
Apr 10, 2024RMBSPresident and CEOSale15.0K$920.3K
Apr 2, 2024RMBSPresident and CEOSale15.0K$899.0K
Mar 27, 2024RMBSPresident and CEOSale15.0K$940.4K
Mar 20, 2024RMBSPresident and CEOSale15.0K$875.3K
Mar 13, 2024RMBSPresident and CEOSale15.0K$940.3K
Mar 6, 2024RMBSPresident and CEOSale15.0K$932.6K
May 9, 2023RMBSPresident and CEOSale12.5K$599.8K
May 2, 2023RMBSPresident and CEOSale12.5K$560.4K
Apr 25, 2023RMBSPresident and CEOSale12.5K$617.7K
Apr 18, 2023RMBSPresident and CEOSale12.5K$619.7K
Apr 11, 2023RMBSPresident and CEOSale12.5K$608.6K
Apr 4, 2023RMBSPresident and CEOSale12.5K$641.0K
Mar 28, 2023RMBSPresident and CEOSale12.5K$562.3K
Mar 21, 2023RMBSPresident and CEOSale12.5K$552.5K
Mar 14, 2023RMBSPresident and CEOSale12.5K$513.3K
Mar 7, 2023RMBSPresident and CEOSale12.5K$560.3K

Showing the 25 most recent filings of 52. Screen every filing.

Luc Seraphin insider trading FAQ

Is Luc Seraphin buying or selling?

Across 52 SEC Form 4 filings, Luc Seraphin reported 0 open-market purchases totaling $0 and 52 sales totaling $25.6M — a net selling position of $25.6M.

Which companies does Luc Seraphin file Form 4s for?

Luc Seraphin has reported insider transactions at 1 company, most often RAMBUS INC (RMBS).

How far back does Luc Seraphin's filing history go?

Trabud holds Luc Seraphin's SEC Form 4 filings from Mar 14, 2019 – Apr 4, 2026, sourced directly from SEC EDGAR.

Where does Trabud get Luc Seraphin's insider trading data?

Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.

Related Content

Learn

What is SEC Form 4?

The filing behind every transaction here

Guide

How to Track Insider Trading

A practical workflow for following Form 4 activity

Use Case

Insider Buying Signals

How investors read insider purchases

Track Luc Seraphin and every other insider

Screen all SEC Form 4 filings by insider, company, transaction value, and role — or ask Trabud's AI agent in plain English.

Open the screener