Larry W Sonsini

CIK 1205649 · last filed 2026-05-21

Larry W Sonsini is a corporate insider who has filed 12 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for IBTA, was dated May 21, 2026. Across all open-market trades the lifetime net is −$180.8K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.4M across reported positions. 4 SEC filings were submitted jointly with SVB FINANCIAL GROUP.

"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

$4.36M

Companies

Total Filings

Lifetime Open-Market Net

-$180.8K

Charts

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

Filer Profile

Reported Address

3303 HILLVIEW AVENUE
PALO ALTO, CA 94304

Related Filers

SVB FINANCIAL GROUP — 4 joint filings, latest 2005-04-28

BROCADE COMMUNICATIONS SYSTEMS INC — 1 joint filings, latest 2004-04-21

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
IBTA	Director	106,383	$40.96	$4.36M	$0	5	2026-05-21
ECHELON CORP (ELON) Delisted	Director	2,426	$21.88	$53.1K	-$180.8K	7	2012-05-24

Recent Filings

12 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
2026-05-21	IBTA	Grant (A)	+5,988	$0	EDGAR
2025-05-30	IBTA	Grant (A)	+4,029	$0	EDGAR
2024-12-03	IBTA	Other (J)	−238,479	$0	EDGAR
2024-08-23	IBTA	Conv (C)	+1,569	$100.1K	EDGAR
2024-04-22	IBTA	Mixed	+238,479	$100.1K	EDGAR
2012-05-24	ECHELON CORP (ELON) Delisted	Grant (A)	—	$0	EDGAR
2011-05-26	ECHELON CORP (ELON) Delisted	Grant (A)	—	$0	EDGAR
2010-05-27	ECHELON CORP (ELON) Delisted	Grant (A)	—	$0	EDGAR
2009-05-18	ECHELON CORP (ELON) Delisted	Grant (A)	—	$0	EDGAR
2008-05-28	ECHELON CORP (ELON) Delisted	Grant (A)	—	$0	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.