Home

DAVID H SIDWELL

CIK 1282556 · last filed 2026-05-26

DAVID H SIDWELL is a corporate insider who has filed 16 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for CB, was dated May 26, 2026. Across all open-market trades the lifetime net is +$103.7K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $5.2M across reported positions. 15 SEC filings were submitted jointly with ACE LTD.

"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.

Loading insider history…
Disclosed Exposure

$5.25M

Companies

3

Total Filings

16

Lifetime Open-Market Net

$103.7K

Filer Profile

Reported Address
MORGAN STANLEY
1585 BROADWAY
NEW YORK, NY 10036
Related Filers
ACE LTD — 15 joint filings, latest 2026-05-26
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
CB Director 15,514 $338.25 $5.25M $103.7K 12 2026-05-26
Chubb Ltd (ACE) Delisted Director 5,642 — — $0 1 2015-05-26
MSCI Inc. (MXB) Delisted Director 10,123 — — $0 3 2008-04-11

Recent Filings

16 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 CB Mixed +564 -$63.7K EDGAR
2025-05-16 CB Mixed +568 -$59.3K EDGAR
2024-05-17 CB Mixed +573 -$63.3K EDGAR
2023-05-19 CB Mixed +722 -$46.4K EDGAR
2022-05-23 CB Mixed +661 -$55.3K EDGAR
2021-05-24 CB Mixed +652 -$71.6K EDGAR
2020-05-22 CB Mixed +1,412 -$32.3K EDGAR
2019-05-20 CB Mixed +920 -$46.0K EDGAR
2018-05-21 CB Mixed +957 -$41.3K EDGAR
2017-05-22 CB Mixed +906 -$44.5K EDGAR
Showing 1–10 of 16
Page 1 of 2
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.