InsiderTrades

ARX Accelerant Holdings

NYSE · SEC CIK 1997350 · EDGAR

Bought, last 12 months
$1.89M
6 purchases by 6 insiders
Sold, last 12 months
$21.58M
18 sales by 6 insiders
Filings on record
50
since 2025-07-25, latest 2026-08-25 19:01
Buying vs selling by month open-market trades, last 24 months
BoughtSold

Most active insiders, 12 months

InsiderTitleBoughtSold
ONeill Francis JamesCo-Founder, Chief U, W Off $506.9K$11.00M
RADKE JEFFREY LCEO, Co-Founder, Dir, 10% $999.0K$8.81M
Hasley NancyDir —$859.8K
Green Jay MichaelCFO —$638.5K
Sternberg Matthew DavidCOO, Risk Exchange $74.7K$257.2K
Lee-Smith ChristopherCo-Founder, Head of Distrib, Dir $197.3K—
Gaynor SamuelDir $100.8K—
Meriwether Karen SueDir $7,951$10.6K
Talach David George PaulDir ——
Little Paul ChristopherDir ——

Transactions 52

Type
Reset
X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-08-25 19:01 2026-08-21 ARX Meriwether Karen Sue Dir S - Sale $19.62 -542 20.9K -3% -$10.6K
T 2026-08-14 16:34 2026-08-13 ARX Hasley Nancy Dir S - Sale $19.56 -20.5K 1.34M -2% -$400.8K
MTI 2026-08-12 16:31 2026-08-10+ ARX ONeill Francis James Co-Founder, Chief U, W Off S - Sale $12.27 -152.8K 6.37M -2% -$1.87M
TI 2026-08-11 17:25 2026-08-10 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $12.09 -80.0K 27.59M -0.3% -$967.1K
TI 2026-08-04 20:18 2026-08-03 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $12.06 -80.0K 27.67M -0.3% -$964.5K
MTI 2026-07-29 18:25 2026-07-27+ ARX ONeill Francis James Co-Founder, Chief U, W Off S - Sale $14.60 -215.1K 6.52M -3% -$3.14M
MTI 2026-07-28 21:25 2026-07-27 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $14.60 -95.2K 27.75M -0.3% -$1.39M
T 2026-07-27 21:38 2026-07-23 ARX Sternberg Matthew David COO, Risk Exchange F - Tax $13.77 -3,910 614.0K -0.6% -$53.8K
T 2026-07-27 21:38 2026-07-27 ARX Sternberg Matthew David COO, Risk Exchange S - Sale $14.64 -17.6K 596.5K -3% -$257.2K
MTI 2026-07-20 20:52 2026-07-17+ ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $13.63 -94.8K 27.85M -0.3% -$1.29M
MTI 2026-07-16 20:27 2026-07-14+ ARX ONeill Francis James Co-Founder, Chief U, W Off S - Sale $12.78 -165.9K 6.74M -2% -$2.12M
TI 2026-07-14 18:34 2026-07-13 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $13.18 -80.0K 27.94M -0.3% -$1.05M
TI 2026-07-07 20:12 2026-07-06 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $13.33 -80.0K 28.02M -0.3% -$1.07M
TI 2026-06-30 17:01 2026-06-29 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $12.87 -80.0K 28.10M -0.3% -$1.03M
MTI 2026-06-29 21:12 2026-06-25+ ARX ONeill Francis James Co-Founder, Chief U, W Off S - Sale $13.12 -147.0K 6.90M -2% -$1.93M
T 2026-06-25 21:49 2026-06-23 ARX Hasley Nancy Dir S - Sale $13.11 -35.0K 1.36M -3% -$458.9K
TI 2026-06-25 21:24 2026-06-23 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% S - Sale $13.11 -80.0K 28.18M -0.3% -$1.05M
MTI 2026-06-24 20:08 2026-06-22+ ARX ONeill Francis James Co-Founder, Chief U, W Off S - Sale $13.16 -147.0K 7.05M -2% -$1.93M
2026-05-15 21:50 2026-05-13 ARX Sternberg Matthew David COO, Risk Exchange A - Grant $0.00 +279.3K 618.0K +82% $0
2026-05-15 21:43 2026-05-13 ARX Wainwright Simon Dir A - Grant $0.00 +23.3K 23.3K New $0
2026-05-15 21:35 2026-05-13 ARX Talach David George Paul Dir A - Grant $0.00 +23.3K 23.3K New $0
2026-05-15 21:20 2026-05-13 ARX Meriwether Karen Sue Dir A - Grant $0.00 +11.7K 21.4K +120% $0
2026-05-15 21:11 2026-05-13 ARX Hasley Nancy Dir A - Grant $0.00 +11.7K 1.40M +0.8% $0
2026-05-15 20:53 2026-05-13 ARX Little Paul Christopher Dir A - Grant $0.00 +11.7K 20.9K +127% $0
2026-03-24 2026-03-23 ARX Green Jay Michael CFO S - Sale $12.77 -50.0K 1.18M -4% -$638.5K
2026-03-20 2026-03-18 ARX ONeill Francis James Co-Founder, Chief U, W Off A - Grant $0.00 +128.6K 7.36M +2% $0
2026-03-20 2026-03-18 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% A - Grant $0.00 +300.2K 333.7K +897% $0
2026-03-20 2026-03-18 ARX Lee-Smith Christopher Co-Founder, Head of Distrib, Dir A - Grant $0.00 +128.6K 17.78M +0.7% $0
2026-03-20 2026-03-18 ARX Sternberg Matthew David COO, Risk Exchange A - Grant $0.00 +180.7K 338.6K +114% $0
2026-03-18 2026-03-17 ARX Green Jay Michael CFO F - Tax $11.63 -28.6K 1.23M -2% -$332.9K
2026-02-04 2026-02-02 ARX Green Jay Michael CFO F - Tax $12.76 -200.6K 1.25M -14% -$2.56M
2025-12-17 2025-11-19 ARX Lee-Smith Christopher Co-Founder, Head of Distrib, Dir P - Purchase $13.42 +14.7K 17.66M +0.1% +$197.3K
2025-12-09 2025-12-08 ARX Meriwether Karen Sue Dir P - Purchase $14.67 +542 9,752 +6% +$7,951
2025-11-20 2025-11-19 ARX Gaynor Samuel Dir P - Purchase $13.44 +7,500 7,500 New +$100.8K
2025-11-20 2025-11-18 ARX ONeill Francis James Co-Founder, Chief U, W Off P - Purchase $13.34 +38.0K 7.24M +0.5% +$506.9K
2025-11-19 2025-11-17 ARX Sternberg Matthew David COO, Risk Exchange P - Purchase $13.10 +5,700 158.0K +4% +$74.7K
I 2025-11-18 2025-11-14 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% P - Purchase $13.48 +74.1K 28.26M +0.3% +$999.0K
DM 2025-07-29 2025-07-25 ARX ONeill Francis James Co-Founder, Chief U, W Off C - Cnv Deriv — +7.14M 7.14M New —
DMI 2025-07-29 2025-07-25 ARX ACP Accelerant Holdings, L.P. 10% C - Cnv Deriv — +11.60M 8.11M New —
DMI 2025-07-29 2025-07-25 ARX ACP Accelerant Holdings, L.P. 10% S - Sale $21.00 -11.60M 0 -100% -$243.52M
DM 2025-07-29 2025-07-25 ARX Hasley Nancy GC, Dir C - Cnv Deriv — +1.39M 1.37M New —
DI 2025-07-29 2025-07-25 ARX Hasley Nancy GC, Dir P - Purchase $21.00 +500 500 New +$10.5K
DI 2025-07-29 2025-07-25 ARX Hasley Nancy GC, Dir C - Cnv Deriv — +512.5K 512.5K New —
2025-07-29 2025-07-25 ARX Little Paul Christopher Dir A - Grant $0.00 +9,210 9,210 New $0
D 2025-07-29 2025-07-25 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% C - Cnv Deriv — +33.5K 33.5K New —
DMI 2025-07-29 2025-07-25 ARX RADKE JEFFREY L CEO, Co-Founder, Dir, 10% C - Cnv Deriv — +28.20M 27.95M New —
2025-07-29 2025-07-25 ARX Meriwether Karen Sue Dir A - Grant $0.00 +9,210 9,210 New $0
DM 2025-07-29 2025-07-25 ARX Harrington Wendy Liisa Dir C - Cnv Deriv — +14.1K 17.0K +484% —
D 2025-07-29 2025-07-25 ARX Harrington Wendy Liisa Dir A - Grant $0.00 +9,210 9,210 New $0
2025-07-29 2025-07-25 ARX Sternberg Matthew David COO, Risk Exchange A - Grant $0.00 +152.3K 152.3K New $0
D 2025-07-29 2025-07-25 ARX Lee-Smith Christopher Co-Founder, Head of Distrib, Dir C - Cnv Deriv — +17.51M 17.51M New —
D 2025-07-29 2025-07-25 ARX Green Jay Michael CFO A - Grant — +1.45M 1.45M New —

Purchase Sale Sale after option exercise All abbreviations