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NYSE · CIK 0001997350

ARX Accelerant Holdings

Insider trading from SEC Form 4. Last filing Jun 30, 2026. Close $19.80 on Oct 9, 2026, +112% from the 52-week low and -0% from the high.

Accelerant Holdings (ARX) has 38 SEC Form 4 filings on file from 13 insiders, the latest filed on Jun 30, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.

14 open-market trades have been scored at ARX. The newest: Jeffrey L Radke (Co-Founder, CEO) sold $1.0M of stock on Jun 29, 2026, filed Jun 30, 2026, scored 45 (moderate), under a 10b5-1 plan. The largest of the 14 shown: Keoni Andrew Schwartz (director and 10% owner) sold $244M on Jul 25, 2025, scored 60 (notable). 3 insiders sold within 14 days of each other around Jun 29, 2026.

ARX closed at $19.80 on Oct 9, 2026, 112% above its 52-week low and 0% below its 52-week high.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
13
with a Form 4 at this company

Price and insider trades, last year

ARXOct 9, 2026 · close 19.80

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at Accelerant Holdings, scored.

ScoreInsiderValueHoldingsPrice contextFiled
45ModerateJeffrey L Radke
Co-Founder, CEO
sell
$1.0M
80,000 shares
-0%+35% from low-58% from high
35WeakFrancis James ONeill
Co-Founder, Chief U/W Officer
sell
$1.9M
147,000 shares
-2%+39% from low-57% from high
45ModerateJeffrey L Radke
Co-Founder, CEO
sell
$1.0M
80,000 shares
-0%+40% from low-56% from high
27WeakNancy Hasley
General Counsel
sell
$459k
35,000 shares
-3%+40% from low-56% from high
35WeakFrancis James ONeill
Co-Founder, Chief U/W Officer
sell
$1.9M
147,000 shares
-2%+38% from low-57% from high
22WeakJay Michael Green
Chief Financial Officer
sell
$638k
50,000 shares
-4%+37% from low-57% from high
37WeakChristopher Lee-Smith
Co-Founder, Head of Distrib.
buy
$197k
14,700 shares
+0%-
18WeakKaren Sue Meriwether
director
buy
$7,951
542 shares
+6%-
43ModerateFrancis James ONeill
Co-Founder, Chief U/W Officer
buy
$507k
38,000 shares
+1%-
48ModerateSamuel Gaynor
director
buy
$101k
7,500 shares
--
43ModerateMatthew David Sternberg
COO, Risk Exchange
buy
$75k
5,700 shares
+4%-
60NotableJeffrey L Radke
Co-Founder, CEO
buy
$999k
74,110 shares
+0%-
60NotableKeoni Andrew Schwartz
director, owner
sell
$244M
11,596,152 shares
-143%-
23WeakNancy Hasley
General Counsel
buy
$11k
500 shares
--

Transactions

The newest 50 of 83 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Jun 29, 2026Jeffrey L Radke
Co-Founder, CEO
SOpen-market sale
Class A Common Sharesindirect: By LLC10b5-1
-80,000$12.87$1.0M28,101,939Jun 30, 2026
Jun 25, 2026Francis James ONeill
Co-Founder, Chief U/W Officer
SOpen-market sale
Class A Common Sharesindirect: By Famed Ventures Limited10b5-1
-73,500$13.06$960k6,976,625Jun 29, 2026
Jun 26, 2026Francis James ONeill
Co-Founder, Chief U/W Officer
SOpen-market sale
Class A Common Sharesindirect: By Famed Ventures Limited10b5-1
-73,500$13.18$969k6,903,125Jun 29, 2026
Jun 23, 2026Nancy Hasley
General Counsel
SOpen-market sale
Class A Common Shares10b5-1
-35,000$13.11$459k1,362,323Jun 25, 2026
Jun 23, 2026Jeffrey L Radke
Co-Founder, CEO
SOpen-market sale
Class A Common Sharesindirect: By LLC10b5-1
-80,000$13.11$1.0M28,181,939Jun 25, 2026
Jun 22, 2026Francis James ONeill
Co-Founder, Chief U/W Officer
SOpen-market sale
Class A Common Sharesindirect: By Famed Ventures Limited10b5-1
-70,536$13.21$932k7,126,589Jun 24, 2026
Jun 23, 2026Francis James ONeill
Co-Founder, Chief U/W Officer
SOpen-market sale
Class A Common Sharesindirect: By Famed Ventures Limited10b5-1
-76,464$13.11$1.0M7,050,125Jun 24, 2026
May 13, 2026Simon Wainwright
director
AGrant or award
Class A Common Shares
+23,316$0.00$023,316May 15, 2026
May 13, 2026Nancy Hasley
General Counsel
AGrant or award
Class A Common Shares
+11,658$0.00$01,397,323May 15, 2026
May 13, 2026Paul Christopher Little
director
AGrant or award
Class A Common Shares
+11,658$0.00$020,868May 15, 2026
May 13, 2026David George Paul Talach
director
AGrant or award
Class A Common Shares
+23,316$0.00$023,316May 15, 2026
May 13, 2026Matthew David Sternberg
COO, Risk Exchange
AGrant or award
Class A Common Shares
+279,329$0.00$0617,960May 15, 2026
May 13, 2026Karen Sue Meriwether
director
AGrant or award
Class A Common Shares
+11,658$0.00$021,410May 15, 2026
Mar 23, 2026Jay Michael Green
Chief Financial Officer
SOpen-market sale
Class A Common Shares10b5-1
-50,000$12.77$638k1,175,589Mar 24, 2026
Mar 18, 2026Francis James ONeill
Co-Founder, Chief U/W Officer
AGrant or award
Class A Common Shares
+128,644$0.00$07,363,769Mar 20, 2026
Mar 18, 2026Jeffrey L Radke
Co-Founder, CEO
AGrant or award
Class A Common Shares
+300,171$0.00$0333,652Mar 20, 2026
Mar 18, 2026Christopher Lee-Smith
Co-Founder, Head of Distrib.
AGrant or award
Class A Common Shares
+128,644$0.00$017,784,023Mar 20, 2026
Mar 18, 2026Matthew David Sternberg
COO, Risk Exchange
AGrant or award
Class A Common Shares
+180,667$0.00$0338,631Mar 20, 2026
Mar 17, 2026Jay Michael Green
Chief Financial Officer
FTax withholding
Class A Common Shares
-28,625$11.63$333k1,225,589Mar 18, 2026
Feb 2, 2026Jay Michael Green
Chief Financial Officer
FTax withholding
Class A Common Shares
-200,637$12.76$2.6M1,254,214Feb 4, 2026
Nov 19, 2025Christopher Lee-Smith
Co-Founder, Head of Distrib.
POpen-market purchase
Class A Common Shares
+14,700$13.42$197k17,655,379Dec 17, 2025
Dec 8, 2025Karen Sue Meriwether
director
POpen-market purchase
Class A Common Shares
+542$14.67$7,9519,752Dec 9, 2025
Nov 19, 2025Samuel Gaynor
director
POpen-market purchase
Class A Common Shares
+7,500$13.44$101k7,500Nov 20, 2025
Nov 18, 2025Francis James ONeill
Co-Founder, Chief U/W Officer
POpen-market purchase
Class A Common Shares
+38,000$13.34$507k7,235,125Nov 20, 2025
Nov 17, 2025Matthew David Sternberg
COO, Risk Exchange
POpen-market purchase
Class A Common Shares
+5,700$13.10$75k157,964Nov 19, 2025
Nov 14, 2025Jeffrey L Radke
Co-Founder, CEO
POpen-market purchase
Class A Common Sharesindirect: By LLC
+74,110$13.48$999k28,261,939Nov 18, 2025
Jul 25, 2025Karen Sue Meriwether
director
AGrant or award
Class A Common Shares
+9,210$0.00$09,210Jul 29, 2025
Jul 25, 2025Christopher Lee-Smith
Co-Founder, Head of Distrib.
CConversion
Class A Common Shares
+17,509,884--17,509,884Jul 29, 2025
Jul 25, 2025Paul Christopher Little
director
AGrant or award
Class A Common Shares
+9,210$0.00$09,210Jul 29, 2025
Jul 25, 2025Nancy Hasley
General Counsel
CConversion
Class A Common Shares
+1,368,640--1,368,640Jul 29, 2025
Jul 25, 2025Wendy Liisa Harrington
director
AGrant or award
Class A Common Shares
+9,210$0.00$09,210Jul 29, 2025
Jul 25, 2025Jay Michael Green
Chief Financial Officer
AGrant or award
Class A Common Shares
+1,454,851--1,454,851Jul 29, 2025
Jul 25, 2025Matthew David Sternberg
COO, Risk Exchange
AGrant or award
Class A Common Shares
+152,264$0.00$0152,264Jul 29, 2025
Jul 25, 2025Keoni Andrew Schwartz
director, owner
CConversion
Class A Common Sharesindirect: See Footnote
+8,111,253--8,111,253Jul 29, 2025
Jul 25, 2025Jeffrey L Radke
Co-Founder, CEO
CConversion
Class A Common Shares
+33,464--33,464Jul 29, 2025
Jul 25, 2025Francis James ONeill
Co-Founder, Chief U/W Officer
CConversion
Class A Common Shares
+7,136,705--7,136,705Jul 29, 2025
Jul 25, 2025Christopher Lee-Smith
Co-Founder, Head of Distrib.
CConversion
LP Interests of Accelerant Holdings LPderivative
-107,086,944$0.00$00Jul 29, 2025
Jul 25, 2025Francis James ONeill
Co-Founder, Chief U/W Officer
CConversion
Class A Common Shares
+7,975--7,144,680Jul 29, 2025
Jul 25, 2025Jeffrey L Radke
Co-Founder, CEO
CConversion
Class A Common Sharesindirect: By LLC
+27,945,395--27,945,395Jul 29, 2025
Jul 25, 2025Nancy Hasley
General Counsel
CConversion
Class A Common Sharesindirect: By Trust
+512,531--512,531Jul 29, 2025
Jul 25, 2025Jay Michael Green
Chief Financial Officer
JOther
Stock Option (Right to Buy)derivative
-1,087,948--0Jul 29, 2025
Jul 25, 2025Wendy Liisa Harrington
director
CConversion
Class A Common Shares
+7,808--17,018Jul 29, 2025
Jul 25, 2025Keoni Andrew Schwartz
director, owner
SOpen-market sale
Class A Common Sharesindirect: See Footnote
-8,111,253$21.00$170M0Jul 29, 2025
Jul 25, 2025Wendy Liisa Harrington
director
CConversion
Class A Common Shares
+6,297--23,315Jul 29, 2025
Jul 25, 2025Nancy Hasley
General Counsel
CConversion
Class A Common Shares
+17,025--1,385,665Jul 29, 2025
Jul 25, 2025Jeffrey L Radke
Co-Founder, CEO
CConversion
Class A Common Sharesindirect: By Trust
+249,828--249,828Jul 29, 2025
Jul 25, 2025Francis James ONeill
Co-Founder, Chief U/W Officer
CConversion
LP Interests of Accelerant Holdings LPderivative
-163,616,981$0.00$00Jul 29, 2025
Jul 25, 2025Christopher Lee-Smith
Co-Founder, Head of Distrib.
DDisposition to issuer
Redeemable Preference Sharesderivative
-62,132$31.55$2.0M0Jul 29, 2025
Jul 25, 2025Keoni Andrew Schwartz
director, owner
CConversion
Class A Common Sharesindirect: See Footnote
+2,670,456--2,670,456Jul 29, 2025
Jul 25, 2025Wendy Liisa Harrington
director
CConversion
LP Interests of Accelerant Holdings LPderivative
-10,882,806$0.00$00Jul 29, 2025
50 of 83 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about ARX

Answered from the filings on this page, as of the latest one.

Are insiders buying ARX?

No. In the last 90 days no insider at Accelerant Holdings bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.

Who was the last insider to trade ARX on the open market?

Jeffrey L Radke (Co-Founder, CEO) sold $1.0M of ARX on Jun 29, 2026 and filed the Form 4 on Jun 30, 2026. InsiderTell scored 45 (moderate), under a 10b5-1 plan, with 3 insiders on the same side within 14 days.

How many insiders file Form 4 at Accelerant Holdings?

13 people have filed a Form 4 at Accelerant Holdings, among them Samuel Gaynor (director), Jay Michael Green (Chief Financial Officer), Wendy Liisa Harrington (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

ARX insider trading: Accelerant Holdings | InsiderTell