Siebert Kevin Christopher

Officer · VIAV

As of 2026-09-16, Siebert Kevin Christopher has 40 Form 4 transactions on record across 1 company — 25 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 March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $320KIndirect: $0$320Kas of 2026-09-16
  • Direct $320K
  • Indirect $0
VIAVdirect9,296 sh$320K

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

VIAV · 40 trades
2026-08-28: Withheld for tax, 6,960 sh ($254K)2026-08-28: Withheld for tax, 5,190 sh ($190K)2026-08-28: Withheld for tax, 4,784 sh ($175K)2026-08-28: Award / grant, 9,296 sh ($0)2026-08-28: Option exercise, 11,506 sh ($0)2026-08-28: Option exercise, 15,432 sh ($0)2026-08-28: Option exercise, 10,606 sh ($0)2026-08-28: Option exercise, 11,506 sh ($0)2026-08-28: Option exercise, 15,432 sh ($0)2026-08-28: Option exercise, 10,606 sh ($0)2026-05-04: Sale, 8,255 sh ($446K)2026-03-02: Sale, 7,264 sh ($253K)2026-02-02: Sale, 13,577 sh ($349K)2025-12-08: Sale, 24,225 sh ($442K)2025-11-03: Sale, 11,148 sh ($193K)2025-09-25: Sale, 9,927 sh ($121K)2025-09-23: Withheld for tax, 6,313 sh ($78K)2025-09-23: Withheld for tax, 2,884 sh ($36K)2025-09-23: Withheld for tax, 1,392 sh ($17K)2025-09-23: Option exercise, 9,580 sh ($0)2025-09-23: Option exercise, 4,623 sh ($0)2025-09-23: Option exercise, 9,580 sh ($0)2025-09-23: Option exercise, 19,752 sh ($0)2025-09-23: Option exercise, 4,623 sh ($0)2025-09-23: Option exercise, 19,752 sh ($0)2025-08-29: Sale, 13,115 sh ($147K)2025-08-28: Withheld for tax, 4,646 sh ($52K)2025-08-28: Withheld for tax, 3,193 sh ($36K)2025-08-28: Withheld for tax, 2,456 sh ($28K)2025-08-28: Option exercise, 15,432 sh ($0)2025-08-28: Award / grant, 34,516 sh ($0)2025-08-28: Option exercise, 10,606 sh ($0)2025-08-28: Option exercise, 8,158 sh ($0)2025-08-28: Option exercise, 15,432 sh ($0)2025-08-28: Option exercise, 10,606 sh ($0)2025-08-28: Option exercise, 8,158 sh ($0)2025-03-03: Sale, 13,499 sh ($152K)2025-02-28: Withheld for tax, 6,501 sh ($73K)2025-02-28: Option exercise, 20,000 sh ($0)2025-02-28: Option exercise, 20,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-04VIAVSale8,255 @ $54.02$446K−29.1% of holding20,129Form 4
2026-03-02VIAVSale7,264 @ $34.78$253K−20.4% of holding28,384Form 4
2026-02-02VIAVSale13,577 @ $25.72$349K−27.6% of holding35,648Form 4
2025-12-08VIAVSale24,225 @ $18.26$442K−33.0% of holding49,225Form 4
2025-11-03VIAVSale11,148 @ $17.29$193K−13.2% of holding73,450Form 4
2025-09-25VIAVSale9,927 @ $12.17$121K−10.5% of holding84,598Form 4
2025-08-29VIAVSale13,115 @ $11.18$147K−15.6% of holding71,159Form 4
2025-03-03VIAVSale13,499 @ $11.24$152K−18.3% of holding60,373Form 4
32 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-28VIAVWithheld for tax6,96034,423Form 4
2026-08-28VIAVWithheld for tax5,19040,739Form 4
2026-08-28VIAVWithheld for tax4,78425,951Form 4
2026-08-28VIAVAward / grant9,2969,296Form 4
2026-08-28VIAVOption exercise11,50623,010Form 4
2026-08-28VIAVOption exercise15,43215,432Form 4
2026-08-28VIAVOption exercise10,6060Form 4
2026-08-28VIAVOption exercise11,50645,929Form 4
2026-08-28VIAVOption exercise15,43241,383Form 4
2026-08-28VIAVOption exercise10,60630,735Form 4
2025-09-23VIAVWithheld for tax6,31394,525Form 4
2025-09-23VIAVWithheld for tax2,88481,086Form 4
2025-09-23VIAVWithheld for tax1,39274,390Form 4
2025-09-23VIAVOption exercise9,58083,970Form 4
2025-09-23VIAVOption exercise4,6230Form 4
2025-09-23VIAVOption exercise9,58010,606Form 4
2025-09-23VIAVOption exercise19,75230,864Form 4
2025-09-23VIAVOption exercise4,62375,782Form 4
2025-09-23VIAVOption exercise19,752100,838Form 4
2025-08-28VIAVWithheld for tax4,64684,274Form 4
2025-08-28VIAVWithheld for tax3,19373,488Form 4
2025-08-28VIAVWithheld for tax2,45666,075Form 4
2025-08-28VIAVOption exercise15,43230,864Form 4
2025-08-28VIAVAward / grant34,51634,516Form 4
2025-08-28VIAVOption exercise10,60610,606Form 4
2025-08-28VIAVOption exercise8,1580Form 4
2025-08-28VIAVOption exercise15,43288,920Form 4
2025-08-28VIAVOption exercise10,60676,681Form 4
2025-08-28VIAVOption exercise8,15868,531Form 4
2025-02-28VIAVWithheld for tax6,50173,872Form 4
2025-02-28VIAVOption exercise20,0000Form 4
2025-02-28VIAVOption exercise20,00080,373Form 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.