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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 $141.6M across reported positions.

"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

$141.61M

Companies

5

Total Filings

57

Lifetime Open-Market Net

-$2.47M

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 $46.06 $528.4K $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 $157.24 $141.08M -$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.