Dean A Shigenaga

CIK 1311833 · Former President and CFO · last filed 2023-09-19

Dean A Shigenaga is a Former President and CFO who has filed 83 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing shows the insider had shares withheld for taxes covering $359.3K of ARE on Sep 19, 2023. Across all open-market trades the lifetime net is −$36.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.5M 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.

Disclosed Exposure

$9.52M

Companies

2

Total Filings

83

Lifetime Open-Market Net

-$36.06M

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
ARE	Former President and CFO	172,479	$55.22	$9.52M	-$25.37M	67	2023-09-19
ALEXANDRIA REAL ESTATE EQUITIES, INC. (AREpD) Delisted	Co-President and CFO	124,562	—	—	-$10.68M	16	2019-08-19

Recent Filings

83 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
2023-09-19	ARE	Tax (F)	−3,159	-$359.3K	EDGAR
2023-04-04	ARE	Mixed	−4,615	-$295.1K	EDGAR
2023-01-05	ARE	Grant (A)	+13,460	$0	EDGAR
2023-01-04	ARE	Grant (A)	+39,473	$0	EDGAR
2022-12-16	ARE	Mixed	−16,512	-$2.50M	EDGAR
2022-09-19	ARE	Tax (F)	−3,159	-$476.7K	EDGAR
2022-07-19	ARE	Tax (F)	−4,463	-$637.4K	EDGAR
2022-04-04	ARE	Mixed	+4,512	-$665.7K	EDGAR
2021-11-17	ARE	Grant (A)	+25,481	$0	EDGAR
2021-08-02	ARE	Sell (S)	−27,000	-$5.40M	EDGAR

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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.