American Coastal Insurance Corporation
DE ˙ DB ˙ US9107101027
8,40 € ↓ -0,50 (-5,62%)
2026-06-04
DEL PRIS
SecurityDE:0UI / American Coastal Insurance Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership179,394 shares
Latest Disclosed Value $ 2,018,184
Marshall Wace, Llp reports 8.40% increase in ownership of 0UI / American Coastal Insurance Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 179,394 shares of American Coastal Insurance Corporation (DE:0UI) valued at $1,749,092 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 165,494 shares of American Coastal Insurance Corporation. This represents a change in shares of 8.40% during the quarter. The current value of the position is $1,506,910 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F AMERICAN COASTAL COMMON STOCK 910710102 179,394 13,900 8.40 2,018 -3.44 0.0020
2026-02-13 2025-12-31 13F AMERICAN COASTAL COMMON STOCK 910710102 165,494 57,443 53.16 2,090 69.92 0.0019
2025-11-13 2025-09-30 13F AMERICAN COASTAL COMMON STOCK 910710102 108,051 54,649 102.34 1,231 107.42 0.0012
2025-08-13 2025-06-30 13F AMERICAN COASTAL COMMON STOCK 910710102 53,402 -185,821 -77.68 594 -78.57 0.0007
2025-05-15 2025-03-31 13F AMERICAN COASTAL COMMON STOCK 910710102 239,223 -87,415 -26.76 2,768 -37.06 0.0035
2025-02-13 2024-12-31 13F AMERICAN COASTAL COMMON STOCK 910710102 326,638 -28,799 -8.10 4,397 9.76 0.0053
2024-11-14 2024-09-30 13F AMERICAN COASTAL COMMON STOCK 910710102 355,437 -63,410 -15.14 4,006 -9.35 0.0049
2024-08-14 2024-06-30 13F AMERICAN COASTAL COMMON STOCK 910710102 418,847 115,195 37.94 4,419 36.11 0.0059
2024-05-15 2024-03-31 13F AMERICAN COASTAL COMMON STOCK 910710102 303,652 230,242 313.64 3,246 367.72 0.0049
2024-02-14 2023-12-31 13F AMERICAN COASTAL COMMON STOCK 910710102 73,410 -34,693 -32.09 694 -12.70 0.0012
2023-11-14 2023-09-30 13F AMERICAN COASTAL COMMON STOCK 910710102 108,103 67,990 169.50 796 346.63 0.0016
2023-08-14 2023-06-30 13F UNITED INSURANCE COMMON STOCK 910710102 40,113 -51,603 -56.26 179 24.48 0.0003
2022-08-15 2022-06-30 13F UNITED INSURANCE COMMON STOCK 910710102 91,716 -45,838 -33.32 143 -68.64 0.0003
2022-05-16 2022-03-31 13F UNITED INSURANCE COMMON STOCK 910710102 137,554 -17,808 -11.46 456 -32.44 0.0009
2022-02-14 2021-12-31 13F UNITED INSURANCE COMMON STOCK 910710102 155,362 32,951 26.92 675 52.03 0.0012
2021-11-15 2021-09-30 13F UNITED INSURANCE COMMON STOCK 910710102 122,411 106,531 670.85 444 100.00 0.0018
2019-11-14 2019-09-30 13F UNITED INSURANCE COMMON STOCK 910710102 15,880 15,880 222 0.0017
2018-08-14 2018-06-30 13F UNITED INSURANCE COMMON STOCK 910710102 0 -16,100 -100.00 0 -100.00
2018-05-15 2018-03-31 13F UNITED INSURANCE COMMON STOCK 910710102 16,100 16,100 308 0.0128
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.