ATEGRITY SPECIALTY IN CO HO ASIC
COM · Common Stock · CUSIP 04681Y103
- SectorFinancials
- IndustryFire, Marine & Casualty Insurance
- HeadquartersNew York, NY
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 48.1m as of 2025-11-12, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $21.01.
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q2 2025 | 55 |
| Q3 2025 | 68 |
| Q4 2025 | 78 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2025 | 47 | 32 |
| Q4 2025 | 52 | 33 |
Biggest buyers
| T. Rowe Price Investment Management, Inc. | Added | +191.1k |
| CANNELL CAPITAL LLC | Added | +178.9k |
| MILLENNIUM MANAGEMENT LLC | Added | +157.0k |
| Balyasny Asset Management L.P. | Added | +127.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +105.3k |
| BlackRock, Inc. | Added | +98.6k |
| Walleye Capital LLC | Added | +70.1k |
| Nuveen, LLC | Added | +61.7k |
| BANK OF AMERICA CORP /DE/ | Added | +51.5k |
| STATE STREET CORP | Added | +48.7k |
Biggest sellers
| AMERICAN CENTURY COMPANIES INC | Sold out | -437.4k |
| Driehaus Capital Management LLC | Sold out | -381.8k |
| EMERALD ADVISERS, LLC | Reduced | -202.3k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold out | -150.0k |
| EMERALD MUTUAL FUND ADVISERS TRUST | Reduced | -120.3k |
| NEXT CENTURY GROWTH INVESTORS LLC | Reduced | -84.8k |
| Jain Global LLC | Sold out | -68.0k |
| Russell Investments Group, Ltd. | Reduced | -65.4k |
| Schonfeld Strategic Advisors LLC | Reduced | -53.3k |
| Interval Partners, LP | Reduced | -44.3k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Zimmer Financial Services Group LLC 13G · exempt (held before listing) new · filed 2025-08-14 | 81.2% |
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 5 | $1.8m | 0 | — | — |
| Q3 2025 | 1 | $507.4k | 0 | — | — |
| Q4 2025 | 1 | $100.9k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-10-27 | Cohen Justin G Chief Executive Officer, director | Bought | $100.9k5.2k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 790.2k $16.6m | Added +191.1k |
| Nuveen, LLC 0.00% of their portfolio | 705.0k $14.8m | Added +61.7k |
| BAMCO INC /NY/ 0.04% of their portfolio | 669.8k $14.1m | Reduced -9.6k |
| VANGUARD GROUP INC 0.00% of their portfolio | 457.2k $9.6m | Added +21.7k |
| BlackRock, Inc. 0.00% of their portfolio | 448.1k $9.4m | Added +98.6k |
| CANNELL CAPITAL LLC 4.31% of their portfolio | 321.2k $6.7m | Added +178.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 287.6k $6.0m | Added +105.3k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 207.2k $4.4m | Added +157.0k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 170.7k $3.6m | Added +127.8k |
| EMERALD ADVISERS, LLC 0.11% of their portfolio | 167.0k $3.5m | Reduced -202.3k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 157.6k $3.3m | Added +32.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 153.3k $3.2m | Added +4.9k |
| NEXT CENTURY GROWTH INVESTORS LLC 0.21% of their portfolio | 143.7k $3.0m | Reduced -84.8k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 121.6k $2.6m | Added +27.5k |
| Freestone Grove Partners LP 0.02% of their portfolio | 113.8k $2.4m | Reduced -5.3k |
| Ghisallo Capital Management LLC 0.09% of their portfolio | 100.0k $2.1m | Unchanged |
| MARSHALL WACE, LLP 0.00% of their portfolio | 99.9k $2.1m | Reduced -6.7k |
| Walleye Capital LLC 0.01% of their portfolio | 94.2k $2.0m | Added +70.1k |
| STATE STREET CORP 0.00% of their portfolio | 92.9k $2.0m | Added +48.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 88.6k $1.9m | Added +51.5k |
| Alyeska Investment Group, L.P. 0.00% of their portfolio | 71.9k $1.5m | Added +11.9k |
| MORGAN STANLEY 0.00% of their portfolio | 71.8k $1.5m | Added +26.6k |
| Interval Partners, LP 0.03% of their portfolio | 57.8k $1.2m | Reduced -44.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 56.3k $1.2m | Added +20.4k |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.05% of their portfolio | 53.7k $1.1m | Reduced -120.3k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.02% of their portfolio | 50.2k $1.1m | Added +213 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 47.5k $997.8k | Reduced -31 |
| NORTHERN TRUST CORP 0.00% of their portfolio | 47.2k $991.1k | Reduced -1.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 41.4k $869.1k | Added +36.2k |
| NORGES BANK 0.00% of their portfolio | 40.0k $840.4k | Not comparable |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 38.0k $798.1k | New |
| UBS Group AG 0.00% of their portfolio | 32.9k $690.2k | Added +5.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 27.0k $567.9k | Added +3.4k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 25.3k $530.8k | Added +12.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 24.7k $518.9k | Reduced -448 |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 22.9k $481.1k | New |
| Lykos Global Management, LP 0.30% of their portfolio | 20.0k $420.2k | First filing |
| BARCLAYS PLC 0.00% of their portfolio | 19.5k $410.2k | Added +10.6k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 15.9k $334.7k | New |
| Trexquant Investment LP 0.00% of their portfolio | 15.2k $319.6k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 14.0k $293.5k | New |
| VARCOV Co. 0.10% of their portfolio | 12.2k $256.5k | First filing |
| BOOTHBAY FUND MANAGEMENT, LLC 0.01% of their portfolio | 11.3k $237.5k | Reduced -3.8k |
| Sandia Investment Management LP 0.54% of their portfolio | 10.3k $216.4k | Reduced -5.0k |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 9.7k $204.3k | Reduced -53.3k |
| Aquatic Capital Management LLC 0.00% of their portfolio | 5.1k $108.1k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 4.6k $97.6k | Reduced -600 |
| State of Alaska, Department of Revenue 0.00% of their portfolio | 3.7k $76.0k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 3.6k $75.3k | Added +1.6k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.5k $72.7k | Added +2.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 3.0k $63.1k | Added +88 |
| State of Wyoming 0.01% of their portfolio | 2.5k $51.9k | Added +2.3k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 1.9k $40.8k | New |
| STRS OHIO 0.00% of their portfolio | 1.7k $35.7k | Added +600 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 1.3k $27.3k | New |
| Legal & General Group Plc 0.00% of their portfolio | 585 $12.3k | Unchanged |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 538 $11.3k | Reduced -65.4k |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 525 $11.0k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 394 $8.3k | New |
| Quarry LP 0.00% of their portfolio | 386 $8.1k | Added +377 |
| CWM, LLC 0.00% of their portfolio | 346 $7.0k | Reduced -2.2k |
| Sterling Capital Management LLC 0.00% of their portfolio | 285 $6.0k | Added +9 |
| FMR LLC 0.00% of their portfolio | 264 $5.5k | Added +244 |
| AMALGAMATED BANK 0.00% of their portfolio | 201 $4.0k | Reduced -2 |
| MCF Advisors LLC 0.00% of their portfolio | 185 $3.9k | Reduced -107 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 155 $3.0k | Reduced -749 |
| CITIGROUP INC 0.00% of their portfolio | 145 $3.0k | Reduced -1 |
| Private Wealth Management Group, LLC 0.00% of their portfolio | 97 $2.0k | New |
| Aster Capital Management (DIFC) Ltd 0.00% of their portfolio | 35 $735 | New |
| Pinnacle Wealth Planning Services, Inc. 0.00% of their portfolio | 15 $315 | New |
| MassMutual Private Wealth & Trust, FSB 0.00% of their portfolio | 14 $294 | New |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 10 $210 | New |
| IFP Advisors, Inc 0.00% of their portfolio | 9 $189 | New |
| ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio | 8 $168 | New |
| GAMMA Investing LLC 0.00% of their portfolio | 8 $168 | New |
| MAI Capital Management 0.00% of their portfolio | 5 $106 | New |
| Essential Partners LLC 0.00% of their portfolio | 5 $105 | New |
| True Wealth Design, LLC 0.00% of their portfolio | 3 $64 | New |