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Luc Seraphin

CIK 1341984 · President and CEO · last filed 2026-04-03

Luc Seraphin is a President and CEO who has filed 87 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing, for RMBS, was dated Apr 3, 2026. Across all open-market trades the lifetime net is −$25.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $31.1M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$31.09M

Companies

1

Total Filings

87

Lifetime Open-Market Net

-$25.79M

Filer Profile

Reported Address
4453 N FIRST ST., STE. 100
4453 NORTH FIRST STREET, SUITE 100
SAN JOSE, CA 95134
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
RMBS President and CEO 363,754 $85.46 $31.09M -$25.79M 66 2026-04-03

Recent Filings

87 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-04-03 RMBS Mixed +14,697 -$1.60M EDGAR
2026-04-02 RMBS Notice (144) −5,426 -$470.2K EDGAR
2026-03-03 RMBS Sell (S) −39,914 -$3.94M EDGAR
2026-03-02 RMBS Notice (144) −39,914 -$3.94M EDGAR
2026-02-03 RMBS Mixed +51,221 -$10.52M EDGAR
2025-04-24 RMBS Sell (S) −7,603 -$354.6K EDGAR
2025-04-23 RMBS Notice (144) −6,348 -$298.2K EDGAR
2025-04-22 RMBS Notice (144) −1,255 -$56.5K EDGAR
2025-04-16 RMBS Sell (S) −10,000 -$477.9K EDGAR
2025-04-15 RMBS Notice (144) −10,000 -$477.9K EDGAR
Showing 1–10 of 87
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.