RLI Corp.
US ˙ NYSE ˙ US7496071074

SecurityRLI / RLI Corp.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,316,320 shares
Latest Disclosed Value $ 75,082,975
Morgan Stanley reports 21.57% increase in ownership of RLI / RLI Corp.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,316,320 shares of RLI Corp. (US:RLI) valued at $75,082,893 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,082,797 shares of RLI Corp.. This represents a change in shares of 21.57% during the quarter. The current value of the position is $68,948,842 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)
2026-05-15 2026-03-31 13F RLI COM 749607107 1,316,320 233,523 21.57 75,083 8.38 0.0045
2026-05-27 2025-12-31 13F/A-1 RLI COM 749607107 1,082,797 -339,683 -23.88 69,277 -25.33 0.0041
2026-02-13 2025-12-31 13F RLI COM 749607107 1,082,797 -339,683 69,277 0.0041
2026-05-27 2025-09-30 13F/A-1 RLI COM 749607107 1,422,480 44,773 3.25 92,774 -6.76 0.0056
2025-11-14 2025-09-30 13F RLI COM 749607107 1,422,480 44,773 92,774 0.0056
2025-08-15 2025-06-30 13F RLI COM 749607107 1,377,707 -23,696 -1.69 99,498 -11.62 0.0065
2025-05-15 2025-03-31 13F RLI COM 749607107 1,401,403 713,481 103.72 112,575 -0.72 0.0080
2025-05-15 2024-12-31 13F/A-1 RLI COM 749607107 687,922 7,896 1.16 113,391 7.59 0.0079
2025-02-14 2024-12-31 13F RLI COM 749607107 687,922 7,896 113,391 0.0079
2025-05-14 2024-09-30 13F/A-2 RLI COM 749607107 680,026 7,485 1.11 105,391 11.38 0.0076
2025-02-14 2024-09-30 13F/A-1 RLI COM 749607107 680,026 7,485 105,391 0.0076
2024-11-14 2024-09-30 13F RLI COM 749607107 680,026 7,485 105,391 0.0009
2025-05-14 2024-06-30 13F/A-2 RLI COM 749607107 672,541 1,008 0.15 94,620 -5.10 0.0073
2024-10-17 2024-06-30 13F/A-1 RLI COM 749607107 672,541 1,008 94,620 0.0073
2024-08-14 2024-06-30 13F RLI COM 749607107 672,541 1,008 94,620 0.0073
2024-10-17 2024-03-31 13F/A-2 RLI COM 749607107 671,533 -460,172 -40.66 99,703 -33.82 0.0080
2024-08-16 2024-03-31 13F/A-1 RLI COM 749607107 671,533 -460,172 99,703 0.0009
2024-05-15 2024-03-31 13F RLI COM 749607107 671,533 -460,172 99,703 0.0080
2024-08-16 2023-12-31 13F/A-1 RLI COM 749607107 1,131,705 -693 -0.06 150,653 -2.10 0.0133
2024-02-13 2023-12-31 13F RLI COM 749607107 1,131,705 -693 150,653 0.0133
2023-11-15 2023-09-30 13F RLI COM 749607107 1,132,398 -20,683 -1.79 153,882 -2.21 0.0156
2023-08-14 2023-06-30 13F RLI COM 749607107 1,153,081 66,813 6.15 157,361 8.99 0.0155
2023-05-15 2023-03-31 13F RLI COM 749607107 1,086,268 -278,330 -20.40 144,376 -19.40 0.0155
2023-02-14 2022-12-31 13F RLI COM 749607107 1,364,598 1,145,896 523.95 179,131 700.05 0.0203
2022-11-14 2022-09-30 13F RLI COM 749607107 218,702 -9,560 -4.19 22,390 -15.87 0.0031
2022-10-27 2022-06-30 13F/A-1 RLI COM 749607107 228,262 116,531 104.30 26,615 115.30 0.0035
2022-08-15 2022-06-30 13F RLI COM 749607107 228,262 116,531 26,615 0.0007
2022-10-27 2022-03-31 13F/A-1 RLI COM 749607107 111,731 -25,005 -18.29 12,362 -19.35 0.0017
2022-05-13 2022-03-31 13F RLI COM 749607107 111,731 -25,005 12,362 0.0017
2022-02-14 2021-12-31 13F RLI COM 749607107 136,736 -55,601 -28.91 15,328 -20.52 0.0019
2021-11-15 2021-09-30 13F RLI COM 749607107 192,337 39,177 25.58 19,285 20.38 0.0026
2021-08-23 2021-06-30 13F/A-1 RLI COM 749607107 153,160 19,834 14.88 16,020 7.70 0.0021
2021-08-16 2021-06-30 13F RLI COM 749607107 153,160 19,834 16,020 0.0004
2021-05-17 2021-03-31 13F RLI COM 749607107 133,326 -26,550 -16.61 14,875 -10.67 0.0022
2021-02-16 2020-12-31 13F RLI COM 749607107 159,876 -18,714 -10.48 16,652 11.36 0.0026
2020-11-13 2020-09-30 13F RLI COM 749607107 178,590 54,947 44.44 14,953 47.32 0.0029
2020-08-14 2020-06-30 13F RLI COM 749607107 123,643 7,725 6.66 10,150 -0.42 0.0022
2020-05-26 2020-03-31 13F/A-1 RLI COM 749607107 115,918 -107,413 -48.10 10,193 -49.30 0.0028
2020-05-15 2020-03-31 13F RLI COM 749607107 115,918 -107,413 10,193 783.0349
2020-02-14 2019-12-31 13F RLI COM 749607107 223,331 -31,712 -12.43 20,104 -15.17 0.0047
2019-11-14 2019-09-30 13F RLI COM 749607107 255,043 -44,009 -14.72 23,698 -7.55 0.0063
2019-08-14 2019-06-30 13F RLI COM 749607107 299,052 80,514 36.84 25,632 63.48 0.0068
2019-05-15 2019-03-31 13F RLI COM 749607107 218,538 -23,593 -9.74 15,679 -6.14 0.0044
2019-02-14 2018-12-31 13F RLI COM 749607107 242,131 12,376 5.39 16,704 -7.48 0.0050
2019-04-23 2018-09-30 13F/A-2 RLI COM 749607107 229,755 11,859 5.44 18,055 25.18 0.0045
2018-11-20 2018-09-30 13F/A-1 RLI COM 749607107 229,755 0 18,055 0.0045
2018-11-14 2018-09-30 13F RLI COM 749607107 229,755 11,859 18,055
2019-04-23 2018-06-30 13F/A-1 RLI COM 749607107 217,896 789 0.36 14,423 4.80 0.0039
2018-08-14 2018-06-30 13F RLI COM 749607107 217,896 789 14,423
2019-04-23 2018-03-31 13F/A-1 RLI COM 749607107 217,107 10,009 4.83 13,762 9.54 0.0038
2018-05-14 2018-03-31 13F RLI COM 749607107 217,107 10,009 13,762
2019-04-23 2017-12-31 13F/A-1 RLI COM 749607107 207,098 29,382 16.53 12,563 23.25 0.0034
2018-02-14 2017-12-31 13F RLI COM 749607107 207,098 29,382 12,563
2017-11-14 2017-09-30 13F RLI COM 749607107 177,716 22,714 14.65 10,193 20.40 0.0031
2017-08-11 2017-06-30 13F RLI COM 749607107 155,002 1,434 0.93 8,466 -8.15 0.0026
2017-05-22 2017-03-31 13F/A-1 RLI COM 749607107 153,568 -62,652 -28.98 9,217 -32.48 0.0028
2017-05-12 2017-03-31 13F RLI COM 749607107 153,568 9,217
2017-02-22 2016-12-31 13F/A-1 RLI COM 749607107 216,220 155,843 258.12 13,650 230.75 0.0045
2017-02-13 2016-12-31 13F RLI COM 749607107 216,220 13,650
2016-11-10 2016-09-30 13F RLI COM 749607107 60,377 15,896 35.74 4,127 34.96 0.0014
2016-08-12 2016-06-30 13F RLI COM 749607107 44,481 9,720 27.96 3,058 31.64 0.0011
2016-05-12 2016-03-31 13F RLI COM 749607107 34,761 1,262 3.77 2,323 12.28 0.0009
2016-02-09 2015-12-31 13F RLI COM 749607107 33,499 -374 -1.10 2,069 14.06 0.0007
2016-02-08 2015-09-30 13F/A-1 RLI COM 749607107 33,873 5,728 20.35 1,814 25.45 0.0007
2015-11-09 2015-09-30 13F RLI COM 749607107 33,873 1,814
2015-08-12 2015-06-30 13F RLI COM 749607107 28,145 -1,965 -6.53 1,446 -8.31 0.0005
2015-05-14 2015-03-31 13F RLI COM 749607107 30,110 -905 -2.92 1,577 2.94 0.0006
2015-02-13 2014-12-31 13F RLI COM 749607107 31,015 -63,086 -67.04 1,532 -62.40 0.0006
2014-12-16 2014-09-30 13F/A-1 RLI COM 749607107 94,101 -68,096 -41.98 4,074 -43.22 0.0016
2014-11-14 2014-09-30 13F RLI COM 749607107 94,101 4,074
2014-05-13 2014-03-31 13F RLI COM 749607107 162,197 85,926 112.66 7,175 -3.39 0.0030
2014-02-13 2013-12-31 13F RLI COM 749607107 76,271 52,647 222.85 7,427 259.49 0.0032
2013-11-13 2013-09-30 13F RLI CORP COM ST COM 749607107 23,624 7,110 43.05 2,066 63.71 0.0010
2013-08-08 2013-06-30 13F RLI CORP COM ST COM 749607107 16,514 16,514 1,262 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.