Accelerant Holdings
A data-driven marketplace that connects specialty insurance underwriters with the capital providers who back their policies, Accelerant's "Risk Exchange" platform helps smaller insurers write niche commercial coverage. Founded in 2018 by insurance veterans, the name comes from the word for a substance that speeds up a process—fitting for a platform built to accelerate how specialty risks get insured. Its founders were famously "pugnacious" about modernizing an industry stuck with outdated technology.
Sold 11.60M
Granted 300.2K · Bought 74.1K · Sold 160.0K
Granted 128.6K · Bought 14.7K
Granted 128.6K · Bought 38.0K · Sold 294.0K
Granted 11.7K · Bought 500 · Sold 35.0K
Granted 1.45M · Sold 50.0K
Granted 612.3K · Bought 5.7K
Granted 23.3K
Granted 23.3K
Granted 20.9K · Bought 542
Granted 20.9K
Granted 9.2K
Bought 7.5K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Schwartz Keoni Andrew +2 co-filers10% owner, Director, 10% owner · 8 transactions | — | 109.55Mas of Jul 2025 | — | — | 11.60M |
| Radke Jeffrey LCo-Founder, CEO, Director, 10% owner · 7 transactions | — | 29.00M | 300.2K | 74.1K | 160.0K |
| Lee-Smith ChristopherCo-Founder, Head of Distrib., Director · 3 transactions | — | 17.78M | 128.6K | 14.7K | — |
| ONeill Francis JamesCo-Founder, Chief U/W Officer · 8 transactions | — | 7.07M | 128.6K | 38.0K | 294.0K |
| Hasley NancyDirector · 6 transactions | — | 3.24M | 11.7K | 500 | 35.0K |
| Green Jay MichaelChief Financial Officer · 4 transactions | — | 1.18M | 1.45M | — | 50.0K |
| Sternberg Matthew DavidCOO, Risk Exchange · 4 transactions | — | 618.0K | 612.3K | 5.7K | — |
| Talach David George PaulDirector · 1 transaction | — | 23.3K | 23.3K | — | — |
| Wainwright SimonDirector · 1 transaction | — | 23.3K | 23.3K | — | — |
| Meriwether Karen SueDirector · 3 transactions | — | 21.4K | 20.9K | 542 | — |
| Little Paul ChristopherDirector · 2 transactions | — | 20.9K | 20.9K | — | — |
| Harrington Wendy LiisaDirector · 3 transactions | — | 9.2Kas of Jul 2025 | 9.2K | — | — |
| Gaynor SamuelDirector · 1 transaction | — | 7.5K | — | 7.5K | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -11.99M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.