Ategrity Specialty Insurance Company Holdings Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

DB:A1Q Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
30 Sep 25	Buy€184,172	Zimmer Financial Services Group LLC	Company	11,130	€16.59
26 Sep 25	Buy€164,970	Zimmer Financial Services Group LLC	Company	9,920	€16.63
13 Aug 25	Buy€84,016	Zimmer Financial Services Group LLC	Company	5,051	€16.63
12 Jun 25	Buy€36,720	Mitchell Pressman	Individual	2,500	€14.69
12 Jun 25	Buy€691,188	Robert Merton	Individual	47,058	€14.69
12 Jun 25	Buy€431,827	John Sennott	Individual	29,400	€14.69
12 Jun 25	Buy€107,222	William Mercer	Individual	7,300	€14.69
12 Jun 25	Buy€293,760	Neelam Patel	Individual	20,000	€14.69

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of A1Q?
Owner Type	Number of Shares	Ownership Percentage
General Public	1,172,592	2.44%
Individual Insiders	1,928,173	4.01%
Institutions	6,427,368	13.4%
Hedge Funds	38,538,541	80.2%

Dilution of Shares: A1Q only recently listed within the past 12 months

Top Shareholders

Top 25 shareholders own 95.46% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
80.2%	Zimmer Financial Services Group LLC	38,538,541	€626.7m	0.07%	no data
3.52%	Stuart Zimmer	1,690,613	€27.5m	0%	no data
1.84%	T. Rowe Price Group, Inc.	886,529	€14.4m	0%	no data
1.34%	Baron Capital Group, Inc.	642,230	€10.4m	0%	0.03%
1.33%	Emerald Advisers, LLC	639,986	€10.4m	0%	0.23%
1.03%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	496,470	€8.1m	0%	no data
0.99%	American Century Investment Management Inc	475,000	€7.7m	0%	no data
0.79%	Driehaus Capital Management LLC	377,995	€6.1m	0%	0.04%
0.52%	Adage Capital Management, L.P.	250,000	€4.1m	0%	0.01%
0.48%	Next Century Growth Investors LLC	230,145	€3.7m	0%	0.32%
0.46%	Citadel Advisors LLC	222,139	€3.6m	0%	no data
0.37%	BlackRock, Inc.	179,733	€2.9m	0%	no data
0.31%	Freestone Grove Partners LP	149,140	€2.4m	0%	0.02%
0.26%	State of Wisconsin Investment Board	125,000	€2.0m	0%	0.01%
0.22%	Jain Global LLC	103,700	€1.7m	0%	0.03%
0.21%	The Vanguard Group, Inc.	100,000	€1.6m	0%	no data
0.21%	Ghisallo Capital Management LLC	100,000	€1.6m	0%	0.06%
0.2%	Mitchell Pressman	96,287	€1.6m	0%	no data
0.19%	The Goldman Sachs Group, Inc.	91,930	€1.5m	0%	no data
0.19%	Engle Capital Management, L.P.	91,000	€1.5m	0%	0.55%
0.19%	AllianceBernstein L.P.	89,299	€1.5m	0%	no data
0.17%	Nuveen Investments, Inc.	84,116	€1.4m	0%	no data
0.17%	Interval Partners, LP	81,388	€1.3m	0%	0.03%
0.15%	Balyasny Asset Management L.P.	73,650	€1.2m	0%	no data
0.15%	Millennium Management LLC	69,960	€1.1m	0%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/10/27 16:56
End of Day Share Price	2025/10/27 00:00
Earnings	2025/09/30
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

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Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Ategrity Specialty Insurance Company Holdings is covered by 6 analysts. 3 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Taylor Scott	Barclays
Matthew Heimermann	Citigroup Inc
Jamminder Bhullar	J.P. Morgan