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GWRE — 3 insiders, all selling

Guidewire Software, Inc. · Information Technology · ISO week 2026-W35 (2026-08-24 → 2026-08-27)

WATCH − all sells · clu-e435daf92f5c · detected 2026-08-28

3Distinct insiders

3Transactions

−$1.1MTotal reported value

3Source filings

Members

Insider	Role	Txns	Reported value
Peterson David Franklin	Chief Accounting Officer	1	$500k
Mullen John P	President	1	$339k
Rosenbaum Michael George	Chief Executive Officer	1	$225k

Timeline

2026-08-24

− Rosenbaum Michael George Chief Executive Officer S 1,200 sh @ $187.82 = $225k 0001784996-26-000078

2026-08-25

− Mullen John P President S 1,800 sh @ $188.46 = $339k 0001917389-26-000012

2026-08-27

− Peterson David Franklin Chief Accounting Officer S 2,500 sh @ $200.00 = $500k 0001496152-26-000010

Source filings (SEC EDGAR)

Known data limitations

Form 4 lag: insiders have 2 business days to file after a trade (weekends and holidays extend this), and this site re-ingests once daily — a transaction can appear here roughly three business days after it happened.
13F lag: quarterly 13F-HR holdings cover the prior quarter-end and are due 45 days after it — every institutional position shown here is at least 45 days old by construction, often more.
CUSIP→ticker gaps: 13F positions are reported by CUSIP; some holdings cannot be matched to a current ticker (delistings, corporate actions, thin metadata) and appear without one or are omitted from ticker-level views.
EDGAR timing variability: institutions file at different hours and days within their windows; amended filings (4/A, 13F-HR/A) can restate earlier periods, so historical aggregates may change between batches.

Insider Atlas is a descriptive research site, not investment advice — see the methodology for the full provenance chain.