Home

Valentin Gapontsev Trust I

CIK 1508155 · last filed 2026-09-03

Valentin Gapontsev Trust I is a corporate insider who has filed 91 SEC Form 4 insider transactions across 1 company since 2011. The most recent filing shows the insider sold $2.1M of IPGP on Sep 3, 2026. Across all open-market trades the lifetime net is −$168.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.13B across reported positions. The firm reports its address in Bedford, NH. 2 SEC filings were submitted jointly with NIKOLAI PLATONOV.

"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.

Loading insider history…
Disclosed Exposure

$1.13B

Companies

1

Total Filings

91

Lifetime Open-Market Net

-$168.28M

Filer Profile

Reported Address
3 EXECUTIVE PARK DRIVE, SUITE 302
BEDFORD, NH 03110
Phone
(508) 373-1123
State of Incorporation
MA
Related Filers
NIKOLAI PLATONOV — 2 joint filings, latest 2011-12-06
EUGENE A SCHERBAKOV — 2 joint filings, latest 2011-12-06
VALENTIN P GAPONTSEV — 1 joint filings, latest 2011-12-06
IP FIBRE DEVICES LTD — 1 joint filings, latest 2011-12-06
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
IPGP 10%+ Owner 14,151,319 $79.99 $1.13B -$168.28M 87 2026-09-03

Recent Filings

91 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
2026-09-03 IPGP Sell (S) −27,397 -$2.07M EDGAR
2026-07-22 IPGP Sell (S) −56,316 -$5.76M EDGAR
2026-02-18 IPGP Sell (S) −66,500 -$8.70M EDGAR
2026-01-16 IPGP Sell (S) −7,952 -$637.0K EDGAR
2026-01-14 IPGP Sell (S) −58,548 -$4.50M EDGAR
2025-12-16 IPGP Sell (S) −66,500 -$5.15M EDGAR
2025-11-19 IPGP Sell (S) −66,500 -$5.09M EDGAR
2025-10-15 IPGP Sell (S) −66,500 -$5.56M EDGAR
2025-09-16 IPGP Sell (S) −66,500 -$5.37M EDGAR
2025-03-07 IPGP Sell (S) −75,000 -$4.70M EDGAR
Showing 1–10 of 91
Page 1 of 10
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.