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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 $1.7M across reported positions. 20 SEC filings were submitted jointly with HARRIS CORP /DE/.

"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

$1.68M

Companies

3

Total Filings

23

Lifetime Open-Market Net

-$4.08M

Filer Profile

Reported Address
2100 RESTON PARKWAY
SUITE 300
RESTON, VA 20191
Related Filers
HARRIS CORP /DE/ — 20 joint filings, latest 2025-03-14
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
QS Director 71,558 $5.10 $364.9K $0 2 2026-06-05
VVX Director 838 $77.27 $64.8K $0 2 2026-05-11
LHX President, Aerojet Rocketdyne 5,049 $246.93 $1.25M -$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.