ITS
InsiderTrading
TradesInsidersCompaniesCluster BuysRankingsAbout
ITS
InsiderTrading Screener

Track SEC Form 4 insider trades. See what corporate insiders are buying and selling.

Browse

  • Trades
  • Insiders
  • Companies
  • Cluster Buys
  • Rankings

Top Insiders

  • Mark Zuckerberg
  • Elon Musk
  • Jamie Dimon
  • Satya Nadella
  • Lisa Su
  • Jensen Huang

Screeners

  • CEO & CFO Purchases
  • Director Purchases
  • Top Buys This Week
  • Top Sales This Week
  • 10b5-1 Trades
  • Buy/Sell Ratios
  • Politician Overlap
  • Sectors

Learn

  • Learn
  • What is a Form 4?
  • About & Methodology
  • What are Cluster Buys?
  • Top Insider Rankings
  • Contact Us
  • Privacy Policy
  • Terms of Use

Data

  • SEC EDGAR Form 4 ↗
  • CongressStock.com ↗
  • Track13F.com ↗
  • About the data
© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.
Home/Insiders/Rietbroek Robbert

Rietbroek Robbert

Officer

Officer
Total trades
5
Bought (open market)
$701K
Sold (open market)
$0
Tickers traded
3

12-month activity

Monthly buy vs sell totals from Rietbroek Robbert's Form 4 filings.

BuysSellsFilings with no price (gifts, grants)
Show data table
MonthBuysSellsFilings
October 2025$0$00
November 2025$0$00
December 2025$0$00
January 2026$0$01
February 2026$0$01
March 2026$501K$01
April 2026$0$00
May 2026$0$00
June 2026$0$00
July 2026$0$00
August 2026$0$00
September 2026$0$00

Recent trades

Most recent Form 4 filings by Rietbroek Robbert.

  • Rietbroek Robbertbought44,278 shares ofGPKat $11.317$501KMar 4Details
  • Rietbroek Robbertgranted165,030 shares ofGPKat $0Feb 25 · filed Feb 26Details
  • Rietbroek Robbertgranted265,605 shares ofGPKat $0Jan 1 · filed Jan 5Details

Explore insider screeners

Latest CEO & CFO PurchasesLatest CEO & CFO SalesDirector PurchasesOfficer PurchasesTop Purchases This WeekTop Sales This WeekTop Officer Buys (Month)10% Owner Filings10b5-1 Planned TradesDiscretionary TradesBuy/Sell RatiosPolitician-Insider Overlap
Rietbroek Robbert
bought
8,285 shares of
PRMB
at $24.12
$200KAug 13, 2025 · filed Aug 14, 2025Details
  • Rietbroek Robberttax-withheld50,068 shares ofPRMBat $30.77$1.5MJan 1, 2025 · filed Jan 3, 2025Details
  • Rietbroek Robbertgranted232,558 shares ofPRMWat $0Jan 1, 2024 · filed Jan 5, 2024Details
  • Rietbroek Robbertgranted67,774 shares ofPRMWat $0Jan 1, 2024 · filed Jan 5, 2024Details