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/Ackerman John

Ackerman John

Director

Director
Total trades
6
Bought (open market)
$0
Sold (open market)
$32.8M
Tickers traded
1

12-month activity

Monthly buy vs sell totals from Ackerman John's Form 4 filings.

BuysSells
Show data table
MonthBuysSellsFilings
October 2025$0$00
November 2025$0$00
December 2025$0$00
January 2026$0$00
February 2026$0$00
March 2026$0$32.8M4
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 Ackerman John.

  • Ackerman Johnexercised1,413,939 shares ofGRDNMar 28 · filed Mar 31Details
  • Ackerman Johnexercised471,057 shares ofGRDNMar 28 · filed Mar 31Details
  • Ackerman Johnsold827,636 shares ofGRDNat $29.683$24.6MMar 20 · filed Mar 24Details

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
Ackerman John
sold
275,728 shares of
GRDN
at $29.683
$8.2MMar 20 · filed Mar 24Details
  • Ackerman Johnexercised1,413,940 shares ofGRDNSep 27, 2025 · filed Sep 30, 2025Details
  • Ackerman Johnexercised471,057 shares ofGRDNSep 27, 2025 · filed Sep 30, 2025Details