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ROSS NIEBERGALL

CIK 1987171 · President, Aerojet Rocketdyne · last filed 2026-06-05

ROSS NIEBERGALL is a President, Aerojet Rocketdyne who has filed 23 SEC Form 4 insider transactions across 3 companies since 2024. The most recent filing, for QS, was dated Jun 5, 2026. Across all open-market trades the lifetime net is −$4.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.9M 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

$1.91M

Companies

3

Total Filings

23

Lifetime Open-Market Net

-$4.08M

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
QS Director 71,558 $5.69 $407.2K $0 2 2026-06-05
VVX Director 838 $78.76 $66.0K $0 2 2026-05-11
LHX President, Aerojet Rocketdyne 5,049 $285.30 $1.44M -$4.08M 8 2024-12-31

Recent Filings

23 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
2026-06-05 QS Grant (A) +24,183 $0 EDGAR
2026-05-11 VVX Mixed +838 $0 EDGAR
2026-03-06 QS Grant (A) +47,375 $0 EDGAR
2026-01-13 VVX Grant (A) — $0 EDGAR
2025-03-14 LHX Notice (144) −1,261 -$267.5K EDGAR
2025-03-05 LHX Notice (144) −1,261 -$265.8K EDGAR
2025-02-27 LHX Notice (144) −1,211 -$248.3K EDGAR
2024-12-31 LHX Sell (S) −1,373 -$288.4K EDGAR
2024-12-30 LHX Notice (144) −1,373 -$288.4K EDGAR
2024-12-27 LHX Mixed −2,154 -$376.9K EDGAR
Showing 1–10 of 23
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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.