American Coastal Insurance Corporation
DE ˙ DB ˙ US9107101027
8,40 € ↓ -0,50 (-5,62%)
2026-06-04
DEL PRIS
SecurityDE:0UI / American Coastal Insurance Corporation
InstitutionRhumbline Advisers
Latest Disclosed Ownership29,453 shares
Latest Disclosed Value $ 331,338
Rhumbline Advisers reports 2.30% decrease in ownership of 0UI / American Coastal Insurance Corporation

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 29,453 shares of American Coastal Insurance Corporation (DE:0UI) valued at $287,167 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 30,147 shares of American Coastal Insurance Corporation. This represents a change in shares of -2.30% during the quarter. The current value of the position is $247,405 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.

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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)
2026-05-12 2026-03-31 13F AMERICAN COASTAL INS COM 910710102 29,453 -694 -2.30 331 -12.89 0.0003
2026-02-13 2025-12-31 13F AMERICAN COASTAL INS COM 910710102 30,147 -4,029 -11.79 381 -2.31 0.0003
2025-11-06 2025-09-30 13F AMERICAN COASTAL INS COM 910710102 34,176 -602 -1.73 389 0.78 0.0003
2025-08-12 2025-06-30 13F AMERICAN COASTAL INS COM 910710102 34,778 929 2.74 387 -1.28 0.0003
2025-05-29 2025-03-31 13F/A-1 AMERICAN COASTAL INS COM 910710102 33,849 126 0.37 392 -13.69 0.0004
2025-04-08 2025-03-31 13F AMERICAN COASTAL INS COM 910710102 33,849 126 392 0.0004
2025-05-29 2024-12-31 13F/A-1 AMERICAN COASTAL INS COM 910710102 33,723 -500 -1.46 454 17.66 0.0004
2025-01-30 2024-12-31 13F AMERICAN COASTAL INS COM 910710102 33,723 -500 454 0.0004
2024-11-12 2024-09-30 13F AMERICAN COASTAL INS COM 910710102 34,223 7 0.02 386 6.94 0.0003
2024-08-01 2024-06-30 13F AMERICAN COASTAL INS COM 910710102 34,216 6,294 22.54 361 20.81 0.0003
2024-05-09 2024-03-31 13F AMERICAN COASTAL INS COM 910710102 27,922 705 2.59 298 15.95 0.0003
2024-02-08 2023-12-31 13F AMERICAN COASTAL INS COM 910710102 27,217 3,943 16.94 257 50.29 0.0003
2023-11-09 2023-09-30 13F AMERICAN COASTAL INS COM 910710102 23,274 2,997 14.78 171 90.00 0.0002
2023-08-08 2023-06-30 13F UNITED INSURANCE HOLDINGS CORP COM 910710102 20,277 -6,532 -24.36 90 1.12 0.0001
2022-05-12 2022-03-31 13F UNITED INSURANCE HOLDINGS COM 910710102 26,809 -2,371 -8.13 89 -29.92 0.0001
2022-02-10 2021-12-31 13F UNITED INSURANCE HOLDINGS COM 910710102 29,180 -1,186 -3.91 127 15.45 0.0002
2021-11-12 2021-09-30 13F UNITED INSURANCE HOLDINGS COM 910710102 30,366 -34,727 -53.35 110 -70.35 0.0001
2021-08-05 2021-06-30 13F UNITED INSURANCE HOLDINGS COM 910710102 65,093 -4,260 -6.14 371 -25.80 0.0005
2021-05-06 2021-03-31 13F UNITED INSURANCE HOLDINGS COM 910710102 69,353 251 0.36 500 26.58 0.0007
2021-02-10 2020-12-31 13F UNITED INSURANCE HOLDINGS COM 910710102 69,102 6,471 10.33 395 3.95 0.0005
2020-11-12 2020-09-30 13F UNITED INSURANCE HOLDINGS COM 910710102 62,631 -4,339 -6.48 380 -27.48 0.0006
2020-08-13 2020-06-30 13F UNITED INSURANCE HOLDINGS COM 910710102 66,970 -4,461 -6.25 524 -20.61 0.0009
2020-05-06 2020-03-31 13F UNITED INSURANCE HOLDINGS COM 910710102 71,431 1,545 2.21 660 -25.09 0.0014
2020-02-05 2019-12-31 13F UNITED INSURANCE HOLDINGS COM 910710102 69,886 2,875 4.29 881 -5.98 0.0015
2019-10-23 2019-09-30 13F UNITED INSURANCE HOLDINGS COM 910710102 67,011 3,535 5.57 937 3.54 0.0017
2019-08-14 2019-06-30 13F UNITED INSURANCE HOLDINGS COM 910710102 63,476 4,323 7.31 905 -3.83 0.0017
2019-05-01 2019-03-31 13F UNITED INSURANCE HOLDINGS COM 910710102 59,153 -96 -0.16 941 -4.47 0.0018
2019-01-31 2018-12-31 13F UNITED INSURANCE HOLDINGS COM 910710102 59,249 10,589 21.76 985 -9.55 0.0021
2018-11-07 2018-09-30 13F UNITED INSURANCE HOLDINGS COM 910710102 48,660 -253 -0.52 1,089 13.67 0.0021
2018-08-06 2018-06-30 13F UNITED INSURANCE HOLDINGS COM 910710102 48,913 2,225 4.77 958 7.16 0.0019
2018-05-02 2018-03-31 13F UNITED INSURANCE HOLDINGS COM 910710102 46,688 3,154 7.24 894 19.04 0.0019
2018-02-09 2017-12-31 13F UNITED INSURANCE HOLDINGS COM 910710102 43,534 8,337 23.69 751 30.84 0.0015
2017-11-06 2017-09-30 13F UNITED INSURANCE HOLDINGS COM 910710102 35,197 2,195 6.65 574 10.60 0.0012
2017-08-02 2017-06-30 13F UNITED INSURANCE HOLDINGS COM 910710102 33,002 425 1.30 519 -0.19 0.0012
2017-05-02 2017-03-31 13F UNITED INSURANCE HOLDINGS COM 910710102 32,577 10,298 46.22 520 54.30 0.0012
2017-01-27 2016-12-31 13F UNITED INSURANCE HOLDINGS COM 910710102 22,279 358 1.63 337 -9.41 0.0009
2016-11-08 2016-09-30 13F UNITED INSURANCE HOLDINGS COM 910710102 21,921 885 4.21 372 7.83 0.0010
2016-08-11 2016-06-30 13F UNITED INSURANCE HOLDINGS COM 910710102 21,036 -6,620 -23.94 345 -35.03 0.0010
2016-05-02 2016-03-31 13F UNITEDINS HLDGS COM 910710102 27,656 2,775 11.15 531 24.94 0.0016
2016-02-03 2015-12-31 13F UNITEDINS HLDGS COM 910710102 24,881 1,555 6.67 425 38.44 0.0014
2015-11-04 2015-09-30 13F UNITEDINS HLDGS COM 910710102 23,326 1,236 5.60 307 -10.50 0.0010
2015-08-04 2015-06-30 13F UNITEDINS HLDGS COM 910710102 22,090 5,510 33.23 343 -8.04 0.0011
2015-05-12 2015-03-31 13F UNITEDINS HLDGS COM 910710102 16,580 3,980 31.59 373 34.66 0.0011
2015-02-06 2014-12-31 13F UNITEDINS HLDGS COM 910710102 12,600 600 5.00 277 53.89 0.0008
2014-11-12 2014-09-30 13F UNITEDINS HLDGS COM 910710102 12,000 0 0.00 180 -13.04 0.0005
2014-08-06 2014-06-30 13F UNITEDINS HLDGS COM 910710102 12,000 12,000 207 0.0006
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.