New Positions
37 managers initiated
Top five by reported value
Accelerant Holdings NEW YORK STOCK EXCHANGE, INC.:ARX
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
37 new25 added37 reduced27 exited
Total Institutional Holders
99
as of 2025-12-31
Top Holder
SECURITY BENEFIT LIFE INSURANCE CO /KS/
$95.9M
Largest QoQ Increase
Keenan Capital, LLC
+3,139,980 sh
Largest QoQ Decrease
BlackRock, Inc.
-2,059,045 sh
New Positions(37)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Keenan Capital, LLC | 3,139,980 | +3,139,980 | $51.3M | +$51.3M | — |
| NORGES BANK | 665,076 | +665,076 | $10.9M | +$10.9M | — |
| Counterpoint Mutual Funds LLC | 175,967 | +175,967 | $2.9M | +$2.9M | — |
| Lykos Global Management, LP | 175,000 | +175,000 | $2.9M | +$2.9M | — |
| G2 Investment Partners Management LLC | 93,341 | +93,341 | $1.5M | +$1.5M | — |
| Swiss National Bank | 77,900 | +77,900 | $1.3M | +$1.3M | — |
| RENAISSANCE TECHNOLOGIES LLC | 72,700 | +72,700 | $1.2M | +$1.2M | — |
| UBS ASSET MANAGEMENT AMERICAS INC | 59,414 | +59,414 | $971.4K | +$971.4K | — |
| Yorktown Management & Research Co Inc | 59,300 | +59,300 | $969.6K | +$969.6K | — |
| BNP PARIBAS ARBITRAGE, SNC | 35,778 | +35,778 | $585.0K | +$585.0K | — |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 34,972 | +34,972 | $571.8K | +$571.8K | — |
| STATE STREET CORP | 33,554 | +33,554 | $548.6K | +$548.6K | — |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 32,300 | +32,300 | $528.1K | +$528.1K | — |
| BOOTHBAY FUND MANAGEMENT, LLC | 26,000 | +26,000 | $425.1K | +$425.1K | — |
| STATE OF WISCONSIN INVESTMENT BOARD | 25,269 | +25,269 | $413.1K | +$413.1K | — |
| FJ Capital Management LLC | 17,973 | +17,973 | $293.9K | +$293.9K | — |
| Quantbot Technologies LP | 16,398 | +16,398 | $268.1K | +$268.1K | — |
| NORTHERN TRUST CORP | 14,819 | +14,819 | $242.3K | +$242.3K | — |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | 12,888 | +12,888 | $210.7K | +$210.7K | — |
| Arizona State Retirement System | 10,855 | +10,855 | $177.5K | +$177.5K | — |
| BARCLAYS PLC | 10,375 | +10,375 | $169.6K | +$169.6K | — |
| WESBANCO BANK INC | 10,000 | +10,000 | $163.5K | +$163.5K | — |
| KLP KAPITALFORVALTNING AS | 8,500 | +8,500 | $139.0K | +$139.0K | — |
| CITIGROUP INC | 5,080 | +5,080 | $83.1K | +$83.1K | — |
| SIMPLEX TRADING, LLC | 1,564 | +1,564 | $25.6K | +$25.6K | — |
| Parallel Advisors, LLC | 666 | +666 | $10.9K | +$10.9K | — |
| HM PAYSON & CO | 419 | +419 | $6.9K | +$6.9K | — |
| Farther Finance Advisors, LLC | 154 | +154 | $2.5K | +$2.5K | — |
| NATIONAL BANK OF CANADA /FI/ | 144 | +144 | $2.4K | +$2.4K | — |
| Rachor Investment Advisory Services, LLC | 135 | +135 | $2.2K | +$2.2K | — |
| MAI Capital Management | 57 | +57 | $932 | +$932 | — |
| GSA CAPITAL PARTNERS LLP | 23,518 | +23,518 | $385 | +$385 | — |
| NATIXIS ADVISORS, L.P. | 23,347 | +23,347 | $382 | +$382 | — |
| JONES FINANCIAL COMPANIES LLLP | 18 | +18 | $294 | +$294 | — |
| GAMMA Investing LLC | 9 | +9 | $147 | +$147 | — |
| CWM, LLC | 6,666 | +6,666 | $109 | +$109 | — |
| ACADIAN ASSET MANAGEMENT LLC | 5,016 | +5,016 | $82 | +$82 | — |
Added To(25)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Azora Capital LP | 2,439,094 | +1,811,976 | $39.9M | +$30.5M | 288.9% |
| FMR LLC | 1,788,135 | +1,229,490 | $29.2M | +$20.9M | 220.1% |
| Balyasny Asset Management LLC | 2,733,595 | +714,811 | $44.7M | +$14.6M | 35.4% |
| Grandeur Peak Global Advisors, LLC | 1,621,022 | +675,093 | $26.5M | +$12.4M | 71.4% |
| ArrowMark Colorado Holdings LLC | 1,644,013 | +612,409 | $26.9M | +$11.5M | 59.4% |
| AMERICAN CENTURY COMPANIES INC | 1,528,451 | +615,626 | $25.0M | +$11.4M | 67.4% |
| Capital World Investors | 5,767,631 | +14,381 | $94.3M | +$8.6M | 0.2% |
| JPMORGAN CHASE & CO | 1,952,996 | +342,133 | $31.9M | +$7.9M | 21.2% |
| UBS Group AG | 535,637 | +411,612 | $8.8M | +$6.9M | 331.9% |
| ALLIANCEBERNSTEIN L.P. | 2,846,468 | +57,384 | $46.5M | +$5.0M | 2.0% |
| MARSHALL WACE, LLP | 348,147 | +242,932 | $5.7M | +$4.1M | 230.9% |
| GOLDMAN SACHS GROUP INC | 302,626 | +208,279 | $4.9M | +$3.5M | 220.8% |
| Woodline Partners LP | 197,312 | +51,899 | $3.2M | +$1.1M | 35.7% |
| XTX Topco Ltd | 106,248 | +42,383 | $1.7M | +$786.2K | 66.4% |
| Lighthouse Investment Partners, LLC | 198,850 | +26,539 | $3.3M | +$685.5K | 15.4% |
| Jefferies Financial Group Inc. | 44,980 | +34,980 | $735.4K | +$586.5K | 349.8% |
| SummitTX Capital, L.P. | 56,780 | +24,860 | $928.4K | +$453.1K | 77.9% |
| MORGAN STANLEY | 108,230 | +18,131 | $1.8M | +$428.0K | 20.1% |
| Legal & General Group Plc | 30,271 | +20,271 | $494.9K | +$346.0K | 202.7% |
| TEACHER RETIREMENT SYSTEM OF TEXAS | 176,043 | +1,043 | $2.9M | +$272.6K | 0.6% |
| SEI INVESTMENTS CO | 37,902 | +7,972 | $619.7K | +$174.0K | 26.6% |
| PharVision Advisers, LLC | 23,839 | +7,566 | $389.8K | +$147.5K | 46.5% |
| PNC Financial Services Group, Inc. | 3,546 | +722 | $58.0K | +$15.9K | 25.6% |
| FIRST HORIZON CORP | 645 | +351 | $10.5K | +$6.2K | 119.4% |
| ADVISOR GROUP HOLDINGS, INC. | 398 | +273 | $6.5K | +$4.7K | 218.4% |
Reduced(37)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BlackRock, Inc. | 247,656 | -2,059,045 | $4.0M | -$30.3M | -89.3% |
| SECURITY BENEFIT LIFE INSURANCE CO /KS/ | 5,866,257 | 0 | $95.9M | +$15.1M | 0.0% |
| MILLENNIUM MANAGEMENT LLC | 181,647 | -690,433 | $3.0M | -$10.0M | -79.2% |
| Neuberger Berman Group LLC | 160,047 | -586,070 | $2.6M | -$8.5M | -78.5% |
| JANUS HENDERSON GROUP PLC | 23,500 | -519,784 | $384.1K | -$7.7M | -95.7% |
| Ghisallo Capital Management LLC | 100,000 | -325,000 | $1.6M | -$4.7M | -76.5% |
| BARINGS LLC | 3,128,867 | 0 | $41.9M | -$4.4M | 0.0% |
| VANGUARD GROUP INC | 2,235,136 | -13,471 | $36.5M | +$3.1M | -0.6% |
| Deer Park Road Corp | 2,099,057 | 0 | $32.6M | +$2.9M | 0.0% |
| CITADEL ADVISORS LLC | 755,552 | -269,535 | $12.4M | -$2.9M | -26.3% |
| GILDER GAGNON HOWE & CO LLC | 3,703,078 | -195,194 | $60.5M | +$2.5M | -5.0% |
| Walleye Capital LLC | 125,880 | -173,920 | $2.1M | -$2.4M | -58.0% |
| Royal Bank of Canada | 5,144 | -145,556 | $84.0K | -$2.2M | -96.6% |
| Jain Global LLC | 50,234 | -149,766 | $821.3K | -$2.2M | -74.9% |
| BANK OF AMERICA CORP /DE/ | 335,739 | -174,641 | $5.5M | -$2.1M | -34.2% |
| D. E. Shaw & Co., Inc. | 34,694 | -121,777 | $567.2K | -$1.8M | -77.8% |
| BAMCO INC /NY/ | 1,209,114 | -9,195 | $19.8M | +$1.6M | -0.8% |
| Schonfeld Strategic Advisors LLC | 57,211 | -99,451 | $935.4K | -$1.4M | -63.5% |
| Quadrature Capital Ltd | 16,563 | -54,196 | $270.8K | -$783.1K | -76.6% |
| Hudson Bay Capital Management LP | 32,250 | -52,048 | $527.3K | -$727.9K | -61.7% |
| FRED ALGER MANAGEMENT, LLC | 439,698 | -81,217 | $7.2M | -$567.4K | -15.6% |
| Interval Partners, LP | 169,348 | -47,662 | $2.8M | -$462.4K | -22.0% |
| SEVEN GRAND MANAGERS, LLC | 200,000 | 0 | $3.3M | +$292.0K | 0.0% |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 150,000 | 0 | $2.5M | +$219.0K | 0.0% |
| Squarepoint Ops LLC | 199,070 | -30,825 | $3.3M | -$168.3K | -13.4% |
| Centiva Capital, LP | 127,605 | -23,428 | $2.1M | -$162.5K | -15.5% |
| Burkehill Global Management, LP | 100,000 | 0 | $1.6M | +$146.0K | 0.0% |
| TIGER GLOBAL MANAGEMENT LLC | 75,000 | 0 | $1.2M | +$109.5K | 0.0% |
| Crestwood Capital Management, L.P. | 20,000 | 0 | $327.0K | +$29.2K | 0.0% |
| Tower Research Capital LLC (TRC) | 93 | -1,775 | $1.5K | -$26.3K | -95.0% |
| T. Rowe Price Investment Management, Inc. | 976,086 | -1,379,715 | $16.0K | -$19.1K | -58.6% |
| Quarry LP | 1,611 | -1,086 | $26.3K | -$13.8K | -40.3% |
| ENVESTNET ASSET MANAGEMENT INC | 10,292 | -782 | $168.3K | +$3.4K | -7.1% |
| Steward Partners Investment Advisory, LLC | 119 | -216 | $1.9K | -$3.0K | -64.5% |
| SBI Securities Co., Ltd. | 101 | -66 | $1.7K | -$836 | -39.5% |
| Rakuten Securities, Inc. | 1 | 0 | $16 | +$1 | 0.0% |
| TUDOR INVESTMENT CORP ET AL | 72,173 | 0 | $1.1M | $0 | 0.0% |
Sold Out(27)
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| SECURITY BENEFIT LIFE INSURANCE CO /KS/ | 5,866,257 | $95.9M | 0 | 0.0% |
| Capital World Investors | 5,767,631 | $94.3M | +14,381 | 0.2% |
| GILDER GAGNON HOWE & CO LLC | 3,703,078 | $60.5M | -195,194 | -5.0% |
| Keenan Capital, LLC | 3,139,980 | $51.3M | +3,139,980 | — |
| ALLIANCEBERNSTEIN L.P. | 2,846,468 | $46.5M | +57,384 | 2.0% |
| Balyasny Asset Management LLC | 2,733,595 | $44.7M | +714,811 | 35.4% |
| BARINGS LLC | 3,128,867 | $41.9M | 0 | 0.0% |
| Azora Capital LP | 2,439,094 | $39.9M | +1,811,976 | 288.9% |
| VANGUARD GROUP INC | 2,235,136 | $36.5M | -13,471 | -0.6% |
| Deer Park Road Corp | 2,099,057 | $32.6M | 0 | 0.0% |
| JPMORGAN CHASE & CO | 1,952,996 | $31.9M | +342,133 | 21.2% |
| FMR LLC | 1,788,135 | $29.2M | +1,229,490 | 220.1% |
| ArrowMark Colorado Holdings LLC | 1,644,013 | $26.9M | +612,409 | 59.4% |
| Grandeur Peak Global Advisors, LLC | 1,621,022 | $26.5M | +675,093 | 71.4% |
| AMERICAN CENTURY COMPANIES INC | 1,528,451 | $25.0M | +615,626 | 67.4% |
| BAMCO INC /NY/ | 1,209,114 | $19.8M | -9,195 | -0.8% |
| CITADEL ADVISORS LLC | 755,552 | $12.4M | -269,535 | -26.3% |
| NORGES BANK | 665,076 | $10.9M | +665,076 | — |
| UBS Group AG | 535,637 | $8.8M | +411,612 | 331.9% |
| FRED ALGER MANAGEMENT, LLC | 439,698 | $7.2M | -81,217 | -15.6% |
New & Closed Positions this quarter
Closed Positions
27 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for ARX against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.