Valentin Gapontsev Trust I

Ten-percent owner · IPGP

As of 2026-09-16, Valentin Gapontsev Trust I has 61 Form 4 transactions on record across 1 company — 56 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Pattern in the record: open-market sales filed in September in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $511.2MIndirect: $0$511.2Mas of 2026-09-16
  • Direct $511.2M
  • Indirect $0
IPGPdirect6,642,886 sh$511.2M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

IPGP · 61 trades
2026-09-02: Sale, 4,715 sh ($360K)2026-09-02: Sale, 4,591 sh ($347K)2026-09-01: Sale, 18,091 sh ($1.4M)2026-07-21: Sale, 24,347 sh ($2.5M)2026-07-21: Sale, 23,869 sh ($2.5M)2026-07-21: Sale, 7,100 sh ($719K)2026-07-21: Sale, 1,000 sh ($100K)2026-02-17: Sale, 15,882 sh ($2.1M)2026-02-17: Sale, 8,383 sh ($1.1M)2026-02-17: Sale, 6,820 sh ($862K)2026-02-17: Sale, 6,590 sh ($826K)2026-02-17: Sale, 4,931 sh ($644K)2026-02-17: Sale, 5,012 sh ($643K)2026-02-17: Sale, 4,354 sh ($555K)2026-02-17: Sale, 4,035 sh ($538K)2026-02-17: Sale, 3,931 sh ($509K)2026-02-17: Sale, 1,393 sh ($191K)2026-02-17: Sale, 1,381 sh ($188K)2026-02-17: Sale, 790 sh ($109K)2026-02-17: Sale, 760 sh ($106K)2026-02-17: Sale, 480 sh ($69K)2026-02-17: Sale, 410 sh ($60K)2026-02-17: Sale, 390 sh ($58K)2026-02-17: Sale, 376 sh ($53K)2026-02-17: Sale, 220 sh ($33K)2026-02-17: Sale, 137 sh ($20K)2026-02-17: Sale, 125 sh ($17K)2026-02-17: Sale, 100 sh ($14K)2026-01-15: Sale, 7,381 sh ($592K)2026-01-15: Sale, 571 sh ($45K)2026-01-14: Sale, 13,159 sh ($1.0M)2026-01-14: Sale, 3,667 sh ($283K)2026-01-14: Sale, 700 sh ($55K)2026-01-13: Sale, 16,752 sh ($1.3M)2026-01-13: Sale, 6,277 sh ($488K)2026-01-12: Sale, 16,065 sh ($1.2M)2026-01-12: Sale, 1,928 sh ($148K)2025-12-16: Sale, 13,544 sh ($1.0M)2025-12-16: Sale, 12,160 sh ($942K)2025-12-16: Sale, 1,412 sh ($110K)2025-12-15: Sale, 39,384 sh ($3.1M)2025-11-18: Sale, 27,126 sh ($2.1M)2025-11-18: Sale, 20,775 sh ($1.6M)2025-11-17: Sale, 9,932 sh ($761K)2025-11-17: Sale, 4,852 sh ($381K)2025-11-17: Sale, 3,815 sh ($303K)2025-10-15: Sale, 7,226 sh ($621K)2025-10-15: Sale, 5,315 sh ($448K)2025-10-15: Sale, 5,166 sh ($438K)2025-10-14: Sale, 8,430 sh ($702K)2025-10-14: Sale, 3,436 sh ($289K)2025-10-14: Sale, 3,002 sh ($247K)2025-10-14: Sale, 1,661 sh ($134K)2025-10-13: Sale, 29,547 sh ($2.5M)2025-10-13: Sale, 1,667 sh ($137K)2025-10-13: Sale, 1,050 sh ($88K)2025-09-16: Sale, 14,180 sh ($1.1M)2025-09-15: Sale, 37,894 sh ($3.1M)2025-09-15: Sale, 14,426 sh ($1.2M)2025-03-06: Sale, 69,403 sh ($4.3M)2025-03-06: Sale, 5,597 sh ($354K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-09-02IPGPSale4,715 @ $76.25$360K−0.1% of holding6,642,886Form 4
2026-09-02IPGPSale4,591 @ $75.65$347K−0.1% of holding6,647,601Form 4
2026-09-01IPGPSale18,091 @ $75.14$1.4M−0.3% of holding6,652,192Form 4
2026-07-21IPGPSale24,347 @ $102.04$2.5M−0.4% of holding6,694,152Form 4
2026-07-21IPGPSale23,869 @ $103.00$2.5M−0.4% of holding6,670,283Form 4
2026-07-21IPGPSale7,100 @ $101.20$719K−0.1% of holding6,718,499Form 4
2026-07-21IPGPSale1,000 @ $100.08$100K−0.0% of holding6,725,599Form 4
2026-02-17IPGPSale15,882 @ $132.40$2.1M−0.2% of holding6,737,196Form 4
2026-02-17IPGPSale8,383 @ $131.67$1.1M−0.1% of holding6,753,078Form 4
2026-02-17IPGPSale6,820 @ $126.33$862K−0.1% of holding6,779,689Form 4
2026-02-17IPGPSale6,590 @ $125.40$826K−0.1% of holding6,786,509Form 4
2026-02-17IPGPSale4,931 @ $130.57$644K−0.1% of holding6,761,461Form 4
2026-02-17IPGPSale5,012 @ $128.33$643K−0.1% of holding6,770,323Form 4
2026-02-17IPGPSale4,354 @ $127.42$555K−0.1% of holding6,775,335Form 4
2026-02-17IPGPSale4,035 @ $133.42$538K−0.1% of holding6,733,161Form 4
2026-02-17IPGPSale3,931 @ $129.56$509K−0.1% of holding6,766,392Form 4
2026-02-17IPGPSale1,393 @ $136.89$191K−0.0% of holding6,730,262Form 4
2026-02-17IPGPSale1,381 @ $135.93$188K−0.0% of holding6,731,655Form 4
2026-02-17IPGPSale790 @ $137.79$109K−0.0% of holding6,729,472Form 4
2026-02-17IPGPSale760 @ $138.82$106K−0.0% of holding6,728,712Form 4
2026-02-17IPGPSale480 @ $144.29$69K−0.0% of holding6,727,619Form 4
2026-02-17IPGPSale410 @ $146.21$60K−0.0% of holding6,727,209Form 4
2026-02-17IPGPSale390 @ $149.88$58K−0.0% of holding6,726,599Form 4
2026-02-17IPGPSale376 @ $141.97$53K−0.0% of holding6,728,236Form 4
2026-02-17IPGPSale220 @ $148.00$33K−0.0% of holding6,726,989Form 4
2026-02-17IPGPSale137 @ $143.71$20K−0.0% of holding6,728,099Form 4
2026-02-17IPGPSale125 @ $134.12$17K−0.0% of holding6,733,036Form 4
2026-02-17IPGPSale100 @ $140.58$14K−0.0% of holding6,728,612Form 4
2026-01-15IPGPSale7,381 @ $80.16$592K−0.1% of holding6,793,099Form 4
2026-01-15IPGPSale571 @ $79.38$45K−0.0% of holding6,800,480Form 4
2026-01-14IPGPSale13,159 @ $77.63$1.0M−0.2% of holding6,801,751Form 4
2026-01-14IPGPSale3,667 @ $77.19$283K−0.1% of holding6,814,910Form 4
2026-01-14IPGPSale700 @ $78.55$55K−0.0% of holding6,801,051Form 4
2026-01-13IPGPSale16,752 @ $76.71$1.3M−0.2% of holding6,824,854Form 4
2026-01-13IPGPSale6,277 @ $77.70$488K−0.1% of holding6,818,577Form 4
2026-01-12IPGPSale16,065 @ $76.20$1.2M−0.2% of holding6,843,534Form 4
2026-01-12IPGPSale1,928 @ $76.69$148K−0.0% of holding6,841,606Form 4
2025-12-16IPGPSale13,544 @ $76.59$1.0M−0.2% of holding6,873,171Form 4
2025-12-16IPGPSale12,160 @ $77.44$942K−0.2% of holding6,861,011Form 4
2025-12-16IPGPSale1,412 @ $78.22$110K−0.0% of holding6,859,599Form 4
2025-12-15IPGPSale39,384 @ $77.63$3.1M−0.6% of holding6,886,715Form 4
2025-11-18IPGPSale27,126 @ $75.88$2.1M−0.4% of holding6,946,874Form 4
2025-11-18IPGPSale20,775 @ $76.45$1.6M−0.3% of holding6,926,099Form 4
2025-11-17IPGPSale9,932 @ $76.63$761K−0.1% of holding6,982,667Form 4
2025-11-17IPGPSale4,852 @ $78.50$381K−0.1% of holding6,977,815Form 4
2025-11-17IPGPSale3,815 @ $79.33$303K−0.1% of holding6,974,000Form 4
2025-10-15IPGPSale7,226 @ $85.97$621K−0.1% of holding6,992,599Form 4
2025-10-15IPGPSale5,315 @ $84.24$448K−0.1% of holding7,004,991Form 4
2025-10-15IPGPSale5,166 @ $84.73$438K−0.1% of holding6,999,825Form 4
2025-10-14IPGPSale8,430 @ $83.22$702K−0.1% of holding7,013,742Form 4
2025-10-14IPGPSale3,436 @ $84.00$289K−0.0% of holding7,010,306Form 4
2025-10-14IPGPSale3,002 @ $82.19$247K−0.0% of holding7,022,172Form 4
2025-10-14IPGPSale1,661 @ $80.96$134K−0.0% of holding7,025,174Form 4
2025-10-13IPGPSale29,547 @ $83.23$2.5M−0.4% of holding7,027,885Form 4
2025-10-13IPGPSale1,667 @ $82.09$137K−0.0% of holding7,057,432Form 4
2025-10-13IPGPSale1,050 @ $83.86$88K−0.0% of holding7,026,835Form 4
2025-09-16IPGPSale14,180 @ $80.67$1.1M−0.2% of holding7,059,099Form 4
2025-09-15IPGPSale37,894 @ $80.54$3.1M−0.5% of holding7,087,705Form 4
2025-09-15IPGPSale14,426 @ $81.15$1.2M−0.2% of holding7,073,279Form 4
2025-03-06IPGPSale69,403 @ $62.56$4.3M−1.0% of holding7,131,196Form 4
2025-03-06IPGPSale5,597 @ $63.33$354K−0.1% of holding7,125,599Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.