Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Ategrity Specialty Insurance Co Holdings

CIK 0002040491ASIC· quarter ending 2026-06-30

Shares outstanding

47,926,928

as of 2026-08-11 · 10-Q cover page, filed 2026-08-13

Held by 13F filers

5,451,974

11.4% of shares outstanding

Holders

-3 vs 2026-03-31 · 9 new, 12 exited

Value

$131.1M

shares -7.0% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-13, as of 2026-08-11)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	ASIC · NYSE	47,926,928	5,451,974	11.4%	84	04681Y103

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	04681Y103	COM	84	5,451,974	47,926,928	11.4%	$131.1M	—	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (84 of 84 · 04681Y103)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	Nuveen, LLC	724,481	1.51%	$17.4M	+12,410 (+1.7%)
2	BlackRock, Inc.	614,785	1.28%	$14.8M	+47,801 (+8.4%)
3	T. Rowe Price Investment Management, Inc.	573,199	1.20%	$13.8M	+3,465 (+0.6%)
4	CANNELL CAPITAL LLC	490,482	1.02%	$11.8M	+3,978 (+0.8%)
5	VANGUARD CAPITAL MANAGEMENT LLC	391,457	0.82%	$9.4M	+33,168 (+9.3%)
6	PRICE T ROWE ASSOCIATES INC /MD/	375,677	0.78%	$9.0M	+101,025 (+36.8%)
7	GEODE CAPITAL MANAGEMENT, LLC	202,149	0.42%	$4.9M	+13,902 (+7.4%)
8	STATE STREET CORP	153,268	0.32%	$3.7M	+17,062 (+12.5%)
9	MARSHALL WACE, LLP	137,039	0.29%	$3.3M	-63,573 (-31.7%)
10	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	131,785	0.27%	$3.2M	—
11	STATE OF WISCONSIN INVESTMENT BOARD	129,266	0.27%	$3.1M	-14,023 (-9.8%)
12	TWO SIGMA INVESTMENTS, LP	128,737	0.27%	$3.1M	-29,354 (-18.6%)
13	PRUDENTIAL FINANCIAL INC	89,180	0.19%	$2.1M	+14,600 (+19.6%)
14	NORTHERN TRUST CORP	87,197	0.18%	$2.1M	+23,782 (+37.5%)
15	JPMORGAN CHASE & CO	79,120	0.17%	$1.9M	+2,920 (+3.8%)
16	VANGUARD PORTFOLIO MANAGEMENT LLC	74,577	0.16%	$1.8M	+5,141 (+7.4%)
17	MORGAN STANLEY	74,295	0.16%	$1.8M	-9,711 (-11.6%)
18	Alyeska Investment Group, L.P.	71,903	0.15%	$1.7M	—
19	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	54,310	0.11%	$1.3M	+2,133 (+4.1%)
20	GOLDMAN SACHS GROUP INC	53,553	0.11%	$1.3M	-78,028 (-59.3%)
21	KORNITZER CAPITAL MANAGEMENT INC /KS	52,705	0.11%	$1.3M	-1,777 (-3.3%)
22	RENAISSANCE TECHNOLOGIES LLC	49,200	0.10%	$1.2M	+7,600 (+18.3%)
23	VANGUARD FIDUCIARY TRUST CO	46,901	0.10%	$1.1M	+1,358 (+3.0%)
24	BANK OF AMERICA CORP /DE/	46,199	0.10%	$1.1M	-55,431 (-54.5%)
25	Allworth Financial LP	45,644	0.10%	$1.1M	+45,632 (+380266.7%)
26	BNP PARIBAS FINANCIAL MARKETS	41,352	0.09%	$994K	+932 (+2.3%)
27	LOS ANGELES CAPITAL MANAGEMENT LLC	40,585	0.08%	$976K	+34,995 (+626.0%)
28	Trexquant Investment LP	38,481	0.08%	$925K	-12,360 (-24.3%)
29	CITADEL ADVISORS LLC	35,255	0.07%	$848K	-60,929 (-63.3%)
30	XTX Topco Ltd	33,093	0.07%	$796K	+8,451 (+34.3%)
31	D. E. Shaw & Co., Inc.	30,871	0.06%	$742K	+3,392 (+12.3%)
32	STRS OHIO	30,200	0.06%	$726K	+3,400 (+12.7%)
33	Centiva Capital, LP	29,682	0.06%	$714K	-3,858 (-11.5%)
34	MILLENNIUM MANAGEMENT LLC	28,469	0.06%	$684K	-98,003 (-77.5%)
35	WELLS FARGO & COMPANY/MN	26,902	0.06%	$647K	+3,088 (+13.0%)
36	Walleye Capital LLC	24,158	0.05%	$581K	-33,262 (-57.9%)
37	Bank of New York Mellon Corp	21,533	0.04%	$518K	+5,753 (+36.5%)
38	UBS Group AG	17,042	0.04%	$410K	-5,205 (-23.4%)
39	ProCore Advisors, LLC	16,406	0.03%	$394K	+2,332 (+16.6%)
40	Yorktown Management & Research Co Inc	14,650	0.03%	$352K	NEW
41	AQR CAPITAL MANAGEMENT LLC	14,569	0.03%	$350K	+3,832 (+35.7%)
42	HRT FINANCIAL LP	13,796	0.03%	$331K	-7,902 (-36.4%)
43	AMERICAN CENTURY COMPANIES INC	13,584	0.03%	$327K	-1,680 (-11.0%)
44	BARCLAYS PLC	13,257	0.03%	$319K	-1,051 (-7.3%)
45	Janney Montgomery Scott LLC	12,952	0.03%	$311K	NEW
46	Point72 Asset Management, L.P.	10,078	0.02%	$242K	-7,895 (-43.9%)
47	RHUMBLINE ADVISERS	9,300	0.02%	$224K	+3,757 (+67.8%)
48	DEUTSCHE BANK AG\	9,075	0.02%	$218K	+6,082 (+203.2%)
49	EMERALD MUTUAL FUND ADVISERS TRUST	7,410	0.02%	$178K	—
50	MetLife Investment Management, LLC	5,402	0.01%	$130K	—
51	CITIGROUP INC	5,313	0.01%	$128K	+4,867 (+1091.3%)
52	Russell Investments Group, Ltd.	4,293	0.01%	$103K	+3,684 (+604.9%)
53	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	4,288	0.01%	$103K	-4 (-0.1%)
54	State of Alaska, Department of Revenue	3,663	0.01%	$88K	—
55	Vanguard Global Advisers, LLC	3,146	0.01%	$76K	—
56	EMERALD ADVISERS, LLC	3,072	0.01%	$74K	—
57	NEW YORK STATE COMMON RETIREMENT FUND	2,300	0.00%	$55K	+1,000 (+76.9%)
58	Police & Firemen's Retirement System of New Jersey	1,940	0.00%	$47K	—
59	FMR LLC	1,808	0.00%	$43K	-28 (-1.5%)
60	ROYAL BANK OF CANADA	1,762	0.00%	$42K	NEW
61	Tower Research Capital LLC (TRC)	1,702	0.00%	$41K	-309 (-15.4%)
62	Ameritas Investment Partners, Inc.	840	0.00%	$20K	+315 (+60.0%)
63	Legal & General Group Plc	795	0.00%	$19K	—
64	GAMMA Investing LLC	483	0.00%	$12K	-16 (-3.2%)
65	Quarry LP	256	0.00%	$6K	NEW
66	Arax Advisory Partners	227	0.00%	$5K	+216 (+1963.6%)
67	Sterling Capital Management LLC	188	0.00%	$5K	-23 (-10.9%)
68	Farther Finance Advisors, LLC	163	0.00%	$4K	+2 (+1.2%)
69	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	128	0.00%	$3K	-376 (-74.6%)
70	Private Wealth Management Group, LLC	97	0.00%	$2K	-92 (-48.7%)
71	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	68	0.00%	$2K	—
72	Aster Capital Management (DIFC) Ltd	64	0.00%	$2K	NEW
73	SJS Investment Consulting Inc.	25	0.00%	$601	NEW
74	Asset Dedication, LLC	25	0.00%	$601	NEW
75	Covestor Ltd	21	0.00%	$1K	+15 (+250.0%)
76	Caitong International Asset Management Co., Ltd	19	0.00%	$457	-12 (-38.7%)
77	JONES FINANCIAL COMPANIES LLLP	18	0.00%	$426	NEW
78	Pinnacle Wealth Planning Services, Inc.	15	0.00%	$361	—
79	EverSource Wealth Advisors, LLC	15	0.00%	$360	—
80	ROTHSCHILD INVESTMENT LLC	11	0.00%	$264	+2 (+22.2%)
81	IFP Advisors, Inc	7	0.00%	$168	+1 (+16.7%)
82	Clearstead Advisors, LLC	5	0.00%	$122	NEW
83	Essential Partners LLC	5	0.00%	$120	—
84	NISA INVESTMENT ADVISORS, LLC	1	0.00%	$24	—

Exited since 2026-03-31 (12 filers; largest 12 shown)

JANE STREET GROUP, LLC	−102,864
Ghisallo Capital Management LLC	−100,000
Balyasny Asset Management L.P.	−94,471
Interval Partners, LP	−41,101
State of Wyoming	−21,081
VARCOV Co.	−13,472
Aquatic Capital Management LLC	−4,514
CWM, LLC	−782
Root Financial Partners, LLC	−18
MAI Capital Management	−5
Freestone Grove Partners LP	−3
True Wealth Design, LLC	−1

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Stuart J. Zimmer	SCHEDULE 13G	2025-08-14	2025-06-30	40,220,522	81.2%
Zimmer Financial Services Group LLC	SCHEDULE 13G	2025-08-14	2025-06-30	39,967,192	80.7%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.