Insider transactions

David A Dykstra

CIK 1244276 · VICE CHAIRMAN AND COO · last filed 2026-08-21

"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
$29.75M
Companies
5
Total Filings
138
Lifetime Open-Market Net
-$18.17M

Charts

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

WTFCW price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
1501 K STREET
WASHINGTON, DC 20005
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
WTFC VICE CHAIRMAN AND COO 166,602 $150.79 $25.12M -$2.78M 41 2026-08-21
WTFCN VICE CHAIRMAN AND COO 179,964 $25.70 $4.63M -$3.39M 9 2026-05-29
WINTRUST FINANCIAL CORP (WTFCP) Delisted VICE CHAIRMAN AND COO 197,150 $25.00 $4.93M -$5.75M 32 2025-05-27
WINTRUST FINANCIAL CORP (WTFCM) Delisted VICE CHAIRMAN AND COO 189,037 $25.00 $4.73M $0 10 2020-05-26
WINTRUST FINANCIAL CORP (WTFCW) Delisted SENIOR EVP AND COO 180,899 — — -$6.25M 39 2018-11-27

Recent Filings · Page 10 of 14

138 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
2014-02-21 WINTRUST FINANCIAL CORP (WTFCW) Delisted Grant (A) +82 $3.6K EDGAR
2014-01-29 WINTRUST FINANCIAL CORP (WTFCW) Delisted Sell (S) −4,226 -$194.5K EDGAR
2014-01-27 WINTRUST FINANCIAL CORP (WTFCW) Delisted Grant (A) +1,374 $25.5K EDGAR
2013-12-10 WINTRUST FINANCIAL CORP (WTFCW) Delisted Mixed +321 -$10.8K EDGAR
2013-01-31 WINTRUST FINANCIAL CORP (WTFCW) Delisted Sell (S) −7,068 -$260.9K EDGAR
2013-01-28 WINTRUST FINANCIAL CORP (WTFCW) Delisted Grant (A) — $0 EDGAR
2012-01-30 WINTRUST FINANCIAL CORP (WTFCW) Delisted Mixed −3,586 -$198.9K EDGAR
2012-01-24 WINTRUST FINANCIAL CORP (WTFCW) Delisted Mixed +5,586 -$86.9K EDGAR
2011-08-09 WINTRUST FINANCIAL CORP (WTFCW) Delisted Grant (A) — $0 EDGAR
2011-02-01 WTFC Grant (A) +95 $0 EDGAR
Showing 91–100 of 138
Page 10 of 14
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.