United States Software & IT Services

Accelerant Holdings (ARX)

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Accelerant Holdings experienced significant insider trading activity over the past ninety days, totaling forty-three sell transactions valued at approximately 45.3 million dollars. These divestments occurred following a positive earnings report. Key executives, including the CEO and Chief Underwriting Officer, executed multiple planned sales amidst a thirty-eight percent stock price appreciation.
Ticker: ARX Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Accelerant Holdings. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
2.0
Meriwether Karen Sue Non-Executive Director
Transaction date
Sale
Price
298.49
Quantity 7,251 +48.4%
Value US$75,955
2.0
KAREN MERIWETHER Director Non-Executive Director
Transaction date
Proposed sale
Price
323.69
Quantity 11,178
Value US$731,982
Hasley Nancy Non-Executive Director
Transaction date
Planned sale
Price
103.62
Quantity 26,955 -31.1%
Value US$1,846,082
NANCY HASLEY Director Non-Executive Director
Transaction date
Proposed sale
Price
13.61
Quantity 20,489
Value US$278,855
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
12.41
Quantity 89,219 -1.4%
Value US$1,107,217
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
12.07
Quantity 63,616 -1.0%
Value US$767,667
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
12.09
Quantity 80,000 -0.3%
Value US$967,096
1.6
Francis James O'Neill Officer Officer
Transaction date
Proposed sale
Price
12.04
Quantity 381,000
Value US$4,587,240
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
11.99
Quantity 80,000
Value US$958,850
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
12.06
Quantity 80,000 -0.3%
Value US$964,528
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
11.95
Quantity 80,000
Value US$956,311
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
14.56
Quantity 104,647 -1.6%
Value US$1,523,451
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
14.63
Quantity 110,467 -1.6%
Value US$1,616,221
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
14.45
Quantity 15,223 -0.1%
Value US$220,013
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
14.63
Quantity 80,000 -0.3%
Value US$1,170,520
1.6
Sternberg Matthew David COO, Risk Exchange Officer
Transaction date
Planned sale
Price
14.64
Quantity 17,568 -2.9%
Value US$257,206
1.6
MATTHEW STERNBERG Officer Officer
Transaction date
Proposed sale
Price
14.23
Quantity 17,568
Value US$249,993
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
14.50
Quantity 95,223
Value US$1,380,771
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
14.16
Quantity 30,000
Value US$424,726
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
13.51
Quantity 80,000 -0.3%
Value US$1,080,544
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
13.41
Quantity 80,000
Value US$1,072,952
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
14.30
Quantity 14,777 -0.1%
Value US$211,279
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
14.13
Quantity 14,777
Value US$208,732
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
12.71
Quantity 82,767 -1.2%
Value US$1,052,051
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
12.84
Quantity 83,119 -1.2%
Value US$1,067,639
1.6
Francis James O'Neill Officer Officer
Transaction date
Proposed sale
Price
12.67
Quantity 381,000
Value US$4,827,270
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
13.18
Quantity 80,000 -0.3%
Value US$1,054,096
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
13.08
Quantity 80,000
Value US$1,046,694
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
13.33
Quantity 80,000 -0.3%
Value US$1,066,224
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
13.23
Quantity 80,000
Value US$1,058,737
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
12.87
Quantity 80,000 -0.3%
Value US$1,029,880
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
12.78
Quantity 80,000
Value US$1,022,646
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
13.18
Quantity 73,500 -1.1%
Value US$968,899
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
13.06
Quantity 73,500 -1.0%
Value US$959,778
Hasley Nancy Non-Executive Director
Transaction date
Planned sale
Price
13.11
Quantity 35,000 -2.5%
Value US$458,948
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Planned sale
Price
13.11
Quantity 80,000 -0.3%
Value US$1,048,608
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
13.11
Quantity 76,464 -1.1%
Value US$1,002,428
1.6
Francis James O'Neill Officer Officer
Transaction date
Proposed sale
Price
13.13
Quantity 220,500
Value US$2,895,165
NANCY HASLEY Director; Officer Executive Director
Transaction date
Proposed sale
Price
12.89
Quantity 35,000
Value US$451,150
1.5
RADKE JEFFREY L Officer; Director Executive Director
Transaction date
Proposed sale
Price
13.02
Quantity 80,000
Value US$1,041,239
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Planned sale
Price
13.21
Quantity 70,536 -1.0%
Value US$931,583
1.6
Francis James O'Neill Officer Officer
Transaction date
Proposed sale
Price
12.89
Quantity 73,500
Value US$947,415
1.6
Francis James O'Neill Officer Officer
Transaction date
Proposed sale
Price
12.89
Quantity 73,500
Value US$947,415
JAY GREEN Former affiliate
Transaction date
Proposed sale
Price
15.71
Quantity 180,000
Value US$2,828,070
JAY GREEN Former affiliate
Transaction date
Proposed sale
Price
15.71
Quantity 180,000
Value US$2,828,070
Green Jay Michael Chief Financial Officer Officer
Transaction date
Planned sale
Price
12.77
Quantity 50,000 -4.1%
Value US$638,285
JAY GREEN Officer Officer
Transaction date
Proposed sale
Price
12.95
Quantity 50,000
Value US$647,500
2.0
Meriwether Karen Sue Non-Executive Director
Transaction date
Purchase
Price
14.67
Quantity 542 +5.9%
Value US$7,951
1.6
Lee-Smith Christopher Co-Founder, Head of Distrib. Executive Director
Transaction date
Purchase
Price
13.42
Quantity 14,700 +0.1%
Value US$197,240
1.6
Gaynor Samuel Non-Executive Director
Transaction date
Purchase
Price
13.44
Quantity 7,500 +inf%
Value US$100,774
1.6
ONeill Francis James Co-Founder, Chief U/W Officer Officer
Transaction date
Purchase
Price
13.34
Quantity 38,000 +0.5%
Value US$506,810
1.6
Sternberg Matthew David COO, Risk Exchange Officer
Transaction date
Purchase
Price
13.10
Quantity 5,700 +3.7%
Value US$74,696
1.5
RADKE JEFFREY L Co-Founder, CEO Executive Director Large shareholder
Transaction date
Purchase
Price
13.48
Quantity 74,110 +0.3%
Value US$999,366
Schwartz Keoni Andrew Non-Executive Director Large shareholder
Transaction date
Sale
Price
21.00
Quantity 326,312 -100.0%
Value US$6,852,552
Schwartz Keoni Andrew Non-Executive Director Large shareholder
Transaction date
Sale
Price
21.00
Quantity 488,131 -100.0%
Value US$10,250,751
Schwartz Keoni Andrew Non-Executive Director Large shareholder
Transaction date
Sale
Price
21.00
Quantity 2,670,456 -100.0%
Value US$56,079,576
Schwartz Keoni Andrew Non-Executive Director Large shareholder
Transaction date
Sale
Price
21.00
Quantity 8,111,253 -100.0%
Value US$170,336,313
Hasley Nancy General Counsel Executive Director
Transaction date
Purchase
Price
21.00
Quantity 500 +inf%
Value US$10,500
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-25 2026-08-21 S Sale
2.0
Meriwether Karen Sue
Non-Executive Director
7,251 +48.4%
298.49
US$75,955 		7,251 +48.4% 298.49 US$75,955
2026-08-21 2026-08-21 PrS Proposed sale
2.0
KAREN MERIWETHER

Director

Non-Executive Director
11,178
323.69
US$731,982 		11,178 323.69 US$731,982
2026-08-14 2026-08-13 PlS Planned sale
Hasley Nancy
Non-Executive Director
26,955 -31.1%
103.62
US$1,846,082 		26,955 -31.1% 103.62 US$1,846,082
2026-08-13 2026-08-13 PrS Proposed sale
NANCY HASLEY

Director

Non-Executive Director
20,489
13.61
US$278,855 		20,489 13.61 US$278,855
2026-08-12 2026-08-11 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
89,219 -1.4%
12.41
US$1,107,217 		89,219 -1.4% 12.41 US$1,107,217
2026-08-12 2026-08-10 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
63,616 -1.0%
12.07
US$767,667 		63,616 -1.0% 12.07 US$767,667
2026-08-11 2026-08-10 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
12.09
US$967,096 		80,000 -0.3% 12.09 US$967,096
2026-08-10 2026-08-10 PrS Proposed sale
1.6
Francis James O'Neill

Officer

Officer
381,000
12.04
US$4,587,240 		381,000 12.04 US$4,587,240
2026-08-10 2026-08-10 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
80,000
11.99
US$958,850 		80,000 11.99 US$958,850
2026-08-04 2026-08-03 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
12.06
US$964,528 		80,000 -0.3% 12.06 US$964,528
2026-08-03 2026-08-03 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
80,000
11.95
US$956,311 		80,000 11.95 US$956,311
2026-07-29 2026-07-28 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
104,647 -1.6%
14.56
US$1,523,451 		104,647 -1.6% 14.56 US$1,523,451
2026-07-29 2026-07-27 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
110,467 -1.6%
14.63
US$1,616,221 		110,467 -1.6% 14.63 US$1,616,221
2026-07-28 2026-07-27 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
15,223 -0.1%
14.45
US$220,013 		15,223 -0.1% 14.45 US$220,013
2026-07-28 2026-07-27 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
14.63
US$1,170,520 		80,000 -0.3% 14.63 US$1,170,520
2026-07-27 2026-07-27 PlS Planned sale
1.6
Sternberg Matthew David

COO, Risk Exchange

Officer
17,568 -2.9%
14.64
US$257,206 		17,568 -2.9% 14.64 US$257,206
2026-07-27 2026-07-27 PrS Proposed sale
1.6
MATTHEW STERNBERG

Officer

Officer
17,568
14.23
US$249,993 		17,568 14.23 US$249,993
2026-07-27 2026-07-27 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
95,223
14.50
US$1,380,771 		95,223 14.50 US$1,380,771
2026-07-24 2026-07-24 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
30,000
14.16
US$424,726 		30,000 14.16 US$424,726
2026-07-20 2026-07-20 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
13.51
US$1,080,544 		80,000 -0.3% 13.51 US$1,080,544
2026-07-20 2026-07-20 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
80,000
13.41
US$1,072,952 		80,000 13.41 US$1,072,952
2026-07-20 2026-07-17 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
14,777 -0.1%
14.30
US$211,279 		14,777 -0.1% 14.30 US$211,279
2026-07-17 2026-07-17 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
14,777
14.13
US$208,732 		14,777 14.13 US$208,732
2026-07-16 2026-07-15 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
82,767 -1.2%
12.71
US$1,052,051 		82,767 -1.2% 12.71 US$1,052,051
2026-07-16 2026-07-14 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
83,119 -1.2%
12.84
US$1,067,639 		83,119 -1.2% 12.84 US$1,067,639
2026-07-14 2026-07-14 PrS Proposed sale
1.6
Francis James O'Neill

Officer

Officer
381,000
12.67
US$4,827,270 		381,000 12.67 US$4,827,270
2026-07-14 2026-07-13 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
13.18
US$1,054,096 		80,000 -0.3% 13.18 US$1,054,096
2026-07-13 2026-07-13 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
80,000
13.08
US$1,046,694 		80,000 13.08 US$1,046,694
2026-07-07 2026-07-06 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
13.33
US$1,066,224 		80,000 -0.3% 13.33 US$1,066,224
2026-07-06 2026-07-06 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
80,000
13.23
US$1,058,737 		80,000 13.23 US$1,058,737
2026-06-30 2026-06-29 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
12.87
US$1,029,880 		80,000 -0.3% 12.87 US$1,029,880
2026-06-29 2026-06-29 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
80,000
12.78
US$1,022,646 		80,000 12.78 US$1,022,646
2026-06-29 2026-06-26 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
73,500 -1.1%
13.18
US$968,899 		73,500 -1.1% 13.18 US$968,899
2026-06-29 2026-06-25 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
73,500 -1.0%
13.06
US$959,778 		73,500 -1.0% 13.06 US$959,778
2026-06-25 2026-06-23 PlS Planned sale
Hasley Nancy
Non-Executive Director
35,000 -2.5%
13.11
US$458,948 		35,000 -2.5% 13.11 US$458,948
2026-06-25 2026-06-23 PlS Planned sale
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
80,000 -0.3%
13.11
US$1,048,608 		80,000 -0.3% 13.11 US$1,048,608
2026-06-24 2026-06-23 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
76,464 -1.1%
13.11
US$1,002,428 		76,464 -1.1% 13.11 US$1,002,428
2026-06-23 2026-06-23 PrS Proposed sale
1.6
Francis James O'Neill

Officer

Officer
220,500
13.13
US$2,895,165 		220,500 13.13 US$2,895,165
2026-06-23 2026-06-23 PrS Proposed sale
NANCY HASLEY

Director; Officer

Executive Director
35,000
12.89
US$451,150 		35,000 12.89 US$451,150
2026-06-23 2026-06-23 PrS Proposed sale
1.5
RADKE JEFFREY L

Officer; Director

Executive Director
80,000
13.02
US$1,041,239 		80,000 13.02 US$1,041,239
2026-06-24 2026-06-22 PlS Planned sale
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
70,536 -1.0%
13.21
US$931,583 		70,536 -1.0% 13.21 US$931,583
2026-06-22 2026-06-22 PrS Proposed sale
1.6
Francis James O'Neill

Officer

Officer
73,500
12.89
US$947,415 		73,500 12.89 US$947,415
2026-06-22 2026-06-22 PrS Proposed sale
1.6
Francis James O'Neill

Officer

Officer
73,500
12.89
US$947,415 		73,500 12.89 US$947,415
2026-05-18 2026-05-18 PrS Proposed sale
JAY GREEN

Former affiliate
180,000
15.71
US$2,828,070 		180,000 15.71 US$2,828,070
2026-05-18 2026-05-18 PrS Proposed sale
JAY GREEN

Former affiliate
180,000
15.71
US$2,828,070 		180,000 15.71 US$2,828,070
2026-03-24 2026-03-23 PlS Planned sale
Green Jay Michael

Chief Financial Officer

Officer
50,000 -4.1%
12.77
US$638,285 		50,000 -4.1% 12.77 US$638,285
2026-03-23 2026-03-23 PrS Proposed sale
JAY GREEN

Officer

Officer
50,000
12.95
US$647,500 		50,000 12.95 US$647,500
2025-12-09 2025-12-08 B Purchase
2.0
Meriwether Karen Sue
Non-Executive Director
542 +5.9%
14.67
US$7,951 		542 +5.9% 14.67 US$7,951
2025-12-17 2025-11-19 B Purchase
1.6
Lee-Smith Christopher

Co-Founder, Head of Distrib.

Executive Director
14,700 +0.1%
13.42
US$197,240 		14,700 +0.1% 13.42 US$197,240
2025-11-20 2025-11-19 B Purchase
1.6
Gaynor Samuel
Non-Executive Director
7,500 +inf%
13.44
US$100,774 		7,500 +inf% 13.44 US$100,774
2025-11-20 2025-11-18 B Purchase
1.6
ONeill Francis James

Co-Founder, Chief U/W Officer

Officer
38,000 +0.5%
13.34
US$506,810 		38,000 +0.5% 13.34 US$506,810
2025-11-19 2025-11-17 B Purchase
1.6
Sternberg Matthew David

COO, Risk Exchange

Officer
5,700 +3.7%
13.10
US$74,696 		5,700 +3.7% 13.10 US$74,696
2025-11-18 2025-11-14 B Purchase
1.5
RADKE JEFFREY L

Co-Founder, CEO

Executive Director Large shareholder
74,110 +0.3%
13.48
US$999,366 		74,110 +0.3% 13.48 US$999,366
2025-07-29 2025-07-25 S Sale
Schwartz Keoni Andrew
Non-Executive Director Large shareholder
326,312 -100.0%
21.00
US$6,852,552 		326,312 -100.0% 21.00 US$6,852,552
2025-07-29 2025-07-25 S Sale
Schwartz Keoni Andrew
Non-Executive Director Large shareholder
488,131 -100.0%
21.00
US$10,250,751 		488,131 -100.0% 21.00 US$10,250,751
2025-07-29 2025-07-25 S Sale
Schwartz Keoni Andrew
Non-Executive Director Large shareholder
2,670,456 -100.0%
21.00
US$56,079,576 		2,670,456 -100.0% 21.00 US$56,079,576
2025-07-29 2025-07-25 S Sale
Schwartz Keoni Andrew
Non-Executive Director Large shareholder
8,111,253 -100.0%
21.00
US$170,336,313 		8,111,253 -100.0% 21.00 US$170,336,313
2025-07-29 2025-07-25 B Purchase
Hasley Nancy

General Counsel

Executive Director
500 +inf%
21.00
US$10,500 		500 +inf% 21.00 US$10,500
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