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Jim Simons's Accelerant Holdings (ARX) position

Yes: as of Q1 2026, Jim Simons holds 277K shares of ARX worth $3.7M (0.0% of the disclosed portfolio). Last quarter the position was increased by 280.5%. First disclosed Q4 2025.
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Current value
$3.7M
Shares held
277K
% of portfolio
0.0%
Est. average buy price (i)
$13.02
Quarter-end price
$13.36

Estimated trade prices

Average price in quarters with purchases
$13.02

ARX price vs Simons's position

1Y 3Y 5Y MAX
Dates
$9$20$402026New position of 73K shares · Q4 2025. Average closing price $14.08 · Price range $11.35–$17.1573KsharespurchasedAdded 204K shares (280.5%) · Q1 2026. Average closing price $12.64 · Price range $9.36–$15.85204Ksharespurchased
Average closing price · filing quarter
$12.64
Price range · filing quarter
$9.36 – $15.85
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +204K +$2.6M +280.5% 277K May 14, 2026
Q4 2025 New +73K +$1.0M – 73K Feb 12, 2026
Data through Q1 2026 · filed May 14, 2026
2 grouped rows from 2 quarters

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Common questions

Does Jim Simons own ARX?

Yes. As of Q1 2026, Jim Simons disclosed 277K shares of ARX, worth $3.7M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy ARX?

Jim Simons first disclosed a ARX position in Q4 2025; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell ARX?

The quarter-by-quarter table above shows each sale and reduction Jim Simons disclosed in ARX. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of ARX does Jim Simons own?

Jim Simons disclosed 277K shares of ARX as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for ARX?

Jim Simons's estimated average buy price for ARX is $13.02, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.