Guidewire Software Ownership | Who Owns Guidewire Software?

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Guidewire Software Ownership Summary

Guidewire Software is owned by 54.92% institutional investors, 0.42% insiders, and 44.67% retail investors. Tudor investment corp et al is the largest institutional shareholder, holding 65.30% of GWRE shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.39% of its assets in Guidewire Software shares.

GWRE Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Guidewire Software	54.92%	0.42%	44.67%
Sector	Technology Stocks	35.36%	13.13%	51.51%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Tudor investment corp et al	54.75M	65.30%	$63.76M
Blackrock funding, inc. /de	9.33M	11.00%	$1.40B
Vanguard group	8.95M	10.56%	$1.80B
Bamco inc /ny/	5.17M	6.16%	$1.19B
Blackrock	4.53M	5.49%	$624.55M
Linonia partnership lp	4.31M	5.14%	$991.19M
Massachusetts financial services co /ma/	4.26M	5.02%	$856.00M
State street	2.50M	2.98%	$574.61M
Darsana capital partners lp	2.00M	2.39%	$459.72M
Route one investment company	1.82M	2.17%	$417.89M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Brx global lp	169.45K	33.33%	$34.06M
Linonia partnership lp	4.31M	25.95%	$991.19M
Route one investment company	1.82M	15.47%	$417.89M
Teca partners, lp	106.16K	15.39%	$24.40M
Darsana capital partners lp	2.00M	10.83%	$459.72M
Greenstone partners	181.69K	7.19%	$30.63M
Oakcliff capital partners, lp	65.68K	6.52%	$15.10M
Gavilan investment partners	115.00K	5.91%	$26.43M
Greenstone partners	125.96K	5.29%	$28.95M
Hudson way capital management	252.99K	4.93%	$58.15M

Top Buyers

Holder	Shares	% Assets	Change
Tudor investment corp et al	54.75M	0.11%	54.75M
Principal financial group	1.18M	0.09%	997.99K
Linonia partnership lp	4.31M	25.95%	915.84K
Jane street group	731.35K	0.01%	642.45K
Groupama asset managment	850.00K	0.02%	600.00K

Top Sellers

Holder	Shares	% Assets	Change
Capital world investors	-	-	-1.01M
Whale rock capital management	-	-	-972.74K
Invesco	145.57K	0.00%	-874.13K
Massachusetts financial services co /ma/	4.26M	0.28%	-557.62K
Wellington management group llp	916.00K	0.04%	-424.21K

New Positions

Holder	Shares	% Assets	Change	Value
Tudor investment corp et al	54.75M	0.11%	54.75M	$63.76M
Vanguard fiduciary trust	540.13K	0.02%	540.13K	$80.78M
Westfield capital management co lp	486.58K	0.31%	486.58K	$72.77M
Australiansuper pty	346.75K	0.27%	346.75K	$51.86M
Nomura	137.82K	0.03%	137.82K	$23.23M

Sold Out

Holder	Change
Abound wealth management	-1.00
Davis capital management	-1.00
Tfc financial management	-1.00
Psi advisors	-1.00
Private wealth asset management	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	471	-33.76%	46,557,590	-44.85%	54	0.54%	189	-46.15%	197	-16.17%
Sep 30, 2025	481	-29.78%	51,363,044	-37.05%	61	0.65%	239	-33.43%	160	-32.77%
Jun 30, 2025	689	12.95%	84,485,486	-22.18%	100	0.60%	363	13.79%	237	14.49%
Mar 31, 2025	602	3.79%	108,626,422	30.01%	129	1.29%	313	-0.95%	207	20.35%
Dec 31, 2024	308	-40.08%	41,948,775	-49.38%	50	0.50%	155	-39.69%	99	-43.43%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Mid-Cap ETF	2.87M	3.39%	-1.44K
Vanguard Total Stock Mkt Idx Inv	2.71M	3.20%	23.61K
Vanguard US Total Market Shares ETF	2.63M	3.14%	1.93K
Vanguard Small Cap Index	1.96M	2.32%	32.53K
Baron Partners Retail	1.69M	2.00%	814.55K
Vanguard Explorer Inv	1.29M	1.53%	360.33K
Baron Mid Cap Growth Strategy	1.13M	1.34%	-25.00K
Vanguard Small Cap Growth Index Inv	1.10M	1.30%	26.59K
MFS Growth B	1.05M	1.24%	-6.03K
MFS Growth Equity	1.05M	1.24%	-16.83K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 11, 2026	Rosenbaum Michael George	Chief Executive Officer	Sell	$163.66K
May 04, 2026	Rosenbaum Michael George	Chief Executive Officer	Sell	$170.29K
Apr 27, 2026	Rosenbaum Michael George	Chief Executive Officer	Sell	$165.71K
Apr 20, 2026	Rosenbaum Michael George	Chief Executive Officer	Sell	$167.70K
Apr 13, 2026	Rosenbaum Michael George	Chief Executive Officer	Sell	$142.52K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	6
2026 Q1	-	19
2025 Q4	-	26
2025 Q3	-	34
2025 Q2	-	27

GWRE Ownership FAQ

Who owns the most shares of Guidewire Software?

Guidewire Software’s largest shareholders are Tudor investment corp et al (54.75M shares, 65.30%), Blackrock funding, inc. /de (9.33M shares, 11.00%), and Vanguard group (8.95M shares, 10.56%). Together, they hold 86.86% of Guidewire Software’s total shares outstanding.

Does Blackrock own Guidewire Software?

Yes, BlackRock owns 5.49% of Guidewire Software, totaling 4.53M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 624.55M$. In the last quarter, BlackRock increased its holdings by 147.83K shares, a 3.37% change.

Who is Guidewire Software’s biggest shareholder by percentage of total assets invested?

Brx global lp is Guidewire Software’s biggest shareholder by percentage of total assets invested, with 33.33% of its assets in 169.45K Guidewire Software shares, valued at 34.06M$.

Who is the top mutual fund holder of Guidewire Software shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of Guidewire Software shares, with 3.39% of its total shares outstanding invested in 2.87M Guidewire Software shares.

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