Insider transactions

Duncan L Niederauer

CIK 1393970 · President&CEO of NYSE Euronext · last filed 2026-05-26

Duncan L Niederauer is a President&CEO of NYSE Euronext who has filed 57 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing shows the insider was granted $195.0K of NATL on May 26, 2026. Across all open-market trades the lifetime net is −$2.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $135.5M across reported positions. 4 SEC filings were submitted jointly with Intercontinental Exchange, Inc.

"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
$135.54M
Companies
5
Total Filings
57
Lifetime Open-Market Net
-$2.47M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

Filer Profile

Reported Address
864 SPRING STREET NW
ATLANTA, GA 30308
Related Filers
Intercontinental Exchange, Inc. — 4 joint filings, latest 2014-03-03
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
NATL Director 11,472 $45.44 $521.2K $0 2 2026-05-26
Anywhere Real Estate Inc. (HOUS) Delisted Director 0 $18.25 $0 $0 6 2026-01-09
Anywhere Real Estate Inc. (RLGY) Delisted Director 90,797 $12.08 $1.10M $533.2K 24 2022-05-06
ICE President&CEO of NYSE Euronext 897,245 $150.48 $135.02M -$4.29M 3 2014-03-03
NYSE Euronext (NYX) Delisted Chief Executive Officer 343,883 — — $1.29M 21 2013-08-01

Recent Filings

57 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
2026-05-26 NATL Grant (A) +4,351 $195.0K EDGAR
2026-01-09 Anywhere Real Estate Inc. (HOUS) Delisted Disp (D) −192,570 $0 EDGAR
2025-05-23 NATL Grant (A) +7,121 $185.0K EDGAR
2025-05-12 Anywhere Real Estate Inc. (HOUS) Delisted Gift (G) — $0 EDGAR
2025-05-08 Anywhere Real Estate Inc. (HOUS) Delisted Grant (A) +43,127 $0 EDGAR
2024-05-16 Anywhere Real Estate Inc. (HOUS) Delisted Gift (G) — $0 EDGAR
2024-05-06 Anywhere Real Estate Inc. (HOUS) Delisted Grant (A) +31,435 $0 EDGAR
2023-05-05 Anywhere Real Estate Inc. (HOUS) Delisted Grant (A) +27,211 $0 EDGAR
2022-05-06 Anywhere Real Estate Inc. (RLGY) Delisted Grant (A) +13,782 $0 EDGAR
2021-05-07 Anywhere Real Estate Inc. (RLGY) Delisted Grant (A) +10,609 $0 EDGAR
Showing 1–10 of 57
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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.