Earl H Nemser

CIK 1391400 · Vice Chairman · last filed 2026-05-28

"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

$44.74M

Companies

1

Total Filings

212

Lifetime Open-Market Net

-$150.85M

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
IBKR Vice Chairman 492,645 $90.81 $44.74M -$150.85M 212 2026-05-28

Recent Filings · Page 5 of 22

212 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2020-09-17 IBKR Sell (S) −20,255 -$966.4K EDGAR
2020-09-15 IBKR Sell (S) −23,100 -$1.10M EDGAR
2020-09-11 IBKR Sell (S) −9,900 -$478.8K EDGAR
2020-09-09 IBKR Sell (S) −53,627 -$2.71M EDGAR
2020-09-04 IBKR Sell (S) −99,297 -$5.26M EDGAR
2020-09-02 IBKR Sell (S) −115,103 -$6.12M EDGAR
2020-08-31 IBKR Sell (S) −330,954 -$17.59M EDGAR
2020-08-27 IBKR Sell (S) −156,869 -$8.25M EDGAR
2020-08-26 IBKR Sell (S) −85,981 -$4.47M EDGAR
2020-08-24 IBKR Grant (A) +1,000,000 $52.27M EDGAR
Showing 4150 of 212
Page 5 of 22
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.