ProAssurance Corporation
US ˙ NYSE ˙ US74267C1062

SecurityPRA / ProAssurance Corporation
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,442,782 shares
Ownership 2.80%
Dimensional Fund Advisors Lp ownership in PRA / ProAssurance Corporation

2026-04-09 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,442,782 shares of ProAssurance Corporation (US:PRA). This represents 2.8 percent ownership of the company. In their previous filing dated 2024-02-09 , Dimensional Fund Advisors Lp had reported owning 2,838,938 shares, indicating a decrease of -49.18 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-04-09 2026-04-09 13G/A 2,838,938 1,442,782 -49.18 2.80 -50.00
2024-02-09 2024-02-09 13G 2,838,938 5.60

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-07 2026-03-31 13F PROASSURANCE COM 74267C106 1,442,782 -1,290,418 -47.21 35,665 -45.99 0.0016
2026-02-12 2025-12-31 13F PROASSURANCE COM 74267C106 2,733,200 -7,950 -0.29 66,034 0.42 0.0139
2025-11-12 2025-09-30 13F PROASSURANCE COM 74267C106 2,741,150 -1,501 -0.05 65,760 5.02 0.0141
2025-08-12 2025-06-30 13F PROASSURANCE COM 74267C106 2,742,651 -6,953 -0.25 62,615 -2.47 0.0145
2025-05-13 2025-03-31 13F PROASSURANCE COM 74267C106 2,749,604 45,651 1.69 64,202 49.24 0.0160
2025-02-13 2024-12-31 13F PROASSURANCE COM 74267C106 2,703,953 123,232 4.78 43,019 10.84 0.0103
2024-11-07 2024-09-30 13F PROASSURANCE COM 74267C106 2,580,721 -64,633 -2.44 38,812 20.06 0.0094
2024-08-09 2024-06-30 13F PROASSURANCE COM 74267C106 2,645,354 -119,788 -4.33 32,327 -9.09 0.0084
2024-05-10 2024-03-31 13F PROASSURANCE COM 74267C106 2,765,142 -73,796 -2.60 35,560 -9.17 0.0096
2024-02-07 2023-12-31 13F PROASSURANCE COM 74267C106 2,838,938 168,634 6.32 39,150 -22.39 0.0114
2023-11-09 2023-09-30 13F PROASSURANCE COM 74267C106 2,670,304 308,446 13.06 50,442 41.53 0.0165
2023-08-09 2023-06-30 13F PROASSURANCE COM 74267C106 2,361,858 -33,545 -1.40 35,641 -19.48 0.0114
2023-05-12 2023-03-31 13F PROASSURANCE COM 74267C106 2,395,403 266,578 12.52 44,266 119,537.84 0.0149
2023-02-09 2022-12-31 13F PROASSURANCE COM 74267C106 2,128,825 150,158 7.59 37 -99.90 0.0110
2022-11-10 2022-09-30 13F PROASSURANCE COM 74267C106 1,978,667 142,341 7.75 38,601 -11.04 0.0148
2022-08-12 2022-06-30 13F PROASSURANCE COM 74267C106 1,836,326 253,890 16.04 43,390 2.01 0.0156
2022-05-13 2022-03-31 13F PROASSURANCE COM 74267C106 1,582,436 111,196 7.56 42,535 14.28 0.0131
2022-02-09 2021-12-31 13F PROASSURANCE COM 74267C106 1,471,240 -27,823 -1.86 37,221 4.41 0.0113
2021-11-12 2021-09-30 13F PROASSURANCE COM 74267C106 1,499,063 -212,631 -12.42 35,649 -8.45 0.0115
2021-08-12 2021-06-30 13F PROASSURANCE COM 74267C106 1,711,694 5,252 0.31 38,941 -14.72 0.0123
2021-05-14 2021-03-31 13F PROASSURANCE COM 74267C106 1,706,442 -33,868 -1.95 45,664 47.49 0.0151
2021-03-08 2020-12-31 13F/A-2 PROASSURANCE COM 74267C106 1,740,310 -41,189 -2.31 30,960 11.12 0.0112
2021-02-11 2020-12-31 13F PROASSURANCE COM 74267C106 1,740,310 -41,189 30,960 11,181.1064
2020-11-12 2020-09-30 13F PROASSURANCE COM 74267C106 1,781,499 -224,225 -11.18 27,861 -4.00 0.0118
2020-08-13 2020-06-30 13F PROASSURANCE COM 74267C106 2,005,724 -151,983 -7.04 29,022 -46.20 0.0128
2020-05-14 2020-03-31 13F PROASSURANCE COM 74267C106 2,157,707 24,632 1.15 53,942 -30.03 0.0281
2020-02-14 2019-12-31 13F PROASSURANCE COM 74267C106 2,133,075 23,146 1.10 77,089 -9.27 0.0281
2019-11-12 2019-09-30 13F PROASSURANCE COM 74267C106 2,109,929 56,608 2.76 84,967 14.60 0.0330
2019-08-13 2019-06-30 13F PROASSURANCE COM 74267C106 2,053,321 26,715 1.32 74,145 5.71 0.0288
2019-08-12 2019-03-31 13F/A-2 PROASSURANCE COM 74267C106 2,026,606 -64,261 -3.07 70,142 -17.29 0.0279
2019-05-10 2019-03-31 13F PROASSURANCE COM 74267C106 2,026,606 -64,261 70,142
2019-02-26 2018-12-31 13F/A-1 PROASSURANCE COM 74267C106 2,090,867 -76,608 -3.53 84,804 -16.66 0.0384
2019-02-13 2018-12-31 13F PROASSURANCE COM 74267C106 2,090,867 -76,608 84,804
2018-11-13 2018-09-30 13F PROASSURANCE COM 74267C106 2,167,475 137,879 6.79 101,762 41.43 0.0387
2018-08-10 2018-06-30 13F PROASSURANCE COM 74267C106 2,029,596 209,147 11.49 71,950 -18.59 0.0287
2018-05-11 2018-03-31 13F PROASSURANCE COM 74267C106 1,820,449 256,834 16.43 88,383 -1.09 0.0368
2018-02-12 2017-12-31 13F PROASSURANCE COM 74267C106 1,563,615 -28,453 -1.79 89,361 2.71 0.0370
2017-11-13 2017-09-30 13F PROASSURANCE COM 74267C106 1,592,068 -1,237 -0.08 87,006 -10.19 0.0380
2017-08-11 2017-06-30 13F PROASSURANCE COM 74267C106 1,593,305 -107,536 -6.32 96,873 -5.47 0.0447
2017-05-12 2017-03-31 13F PROASSURANCE COM 74267C106 1,700,841 55,591 3.38 102,476 10.83 0.0490
2017-02-09 2016-12-31 13F PROASSURANCE COM 74267C106 1,645,250 21,983 1.35 92,463 8.54 0.0462
2016-11-10 2016-09-30 13F PROASSURANCE COM 74267C106 1,623,267 -115,331 -6.63 85,187 -8.50 0.0460
2016-08-09 2016-06-30 13F PROASSURANCE COM 74267C106 1,738,598 -162,129 -8.53 93,097 -3.20 0.0536
2016-05-13 2016-03-31 13F PROASSURANCE COM 74267C106 1,900,727 136,222 7.72 96,178 12.31 0.0576
2016-02-10 2015-12-31 13F PROASSURANCE COM 74267C106 1,764,505 166,137 10.39 85,634 9.18 0.0534
2015-11-13 2015-09-30 13F PROASSURANCE COM 74267C106 1,598,368 99,828 6.66 78,433 13.26 0.0515
2015-08-14 2015-06-30 13F PROASSURANCE COM 74267C106 1,498,540 210,859 16.38 69,248 17.14 0.0424
2015-05-14 2015-03-31 13F PROASSURANCE COM 74267C106 1,287,681 224,049 21.06 59,117 23.10 0.0373
2015-02-06 2014-12-31 13F PROASSURANCE COM 74267C106 1,063,632 169,952 19.02 48,025 21.94 0.0315
2014-11-13 2014-09-30 13F PROASSURANCE COM 74267C106 893,680 157,576 21.41 39,385 20.51 0.0279
2014-08-08 2014-06-30 13F PROASSURANCE COM 74267C106 736,104 126,513 20.75 32,683 20.41 0.0227
2014-05-14 2014-03-31 13F PROASSURANCE COM 74267C106 609,591 69,720 12.91 27,143 3.71 0.0203
2014-02-12 2013-12-31 13F PROASSURANCE COM 74267C106 539,871 4,212 0.79 26,172 8.43 0.0204
2013-11-13 2013-09-30 13F PROASSURANCE COM 74267C106 535,659 8,792 1.67 24,138 -12.16 0.0209
2013-08-15 2013-06-30 13F PROASSURANCE COM 74267C106 526,867 526,867 27,479 0.0259
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.