Acacia Research Corporation
US ˙ NasdaqGS ˙ US0038813079

SecurityACTG / Acacia Research Corporation
InstitutionMorgan Stanley
Latest Disclosed Ownership276,902 shares
Latest Disclosed Value $ 1,331,901
Morgan Stanley reports 37.53% decrease in ownership of ACTG / Acacia Research Corporation

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 276,902 shares of Acacia Research Corporation (US:ACTG) valued at $1,331,899 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 443,263 shares of Acacia Research Corporation. This represents a change in shares of -37.53% during the quarter. The current value of the position is $1,301,439 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 ACACIA RESH ACACIA TCH COM 003881307 276,902 -166,361 -37.53 1,332 -19.67 0.0001
2026-05-27 2025-12-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 443,263 118,138 36.34 1,658 56.91 0.0001
2026-02-13 2025-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 443,263 118,138 1,658 0.0001
2026-05-27 2025-09-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 325,125 48,524 17.54 1,057 6.67 0.0001
2025-11-14 2025-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 325,125 48,524 1,057 0.0001
2025-08-15 2025-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 276,601 142,137 105.71 990 130.23 0.0001
2025-05-15 2025-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 134,464 -21,893 -14.00 430 -36.58 0.0000
2025-05-15 2024-12-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 156,357 -17,431 -10.03 679 -16.19 0.0000
2025-02-14 2024-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 156,357 -17,431 679 0.0000
2025-05-14 2024-09-30 13F/A-2 ACACIA RESH ACACIA TCH COM 003881307 173,788 55,251 46.61 810 36.42 0.0001
2025-02-14 2024-09-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 173,788 55,251 810 0.0001
2024-11-14 2024-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 173,788 55,251 810 0.0000
2025-05-14 2024-06-30 13F/A-2 ACACIA RESH ACACIA TCH COM 003881307 118,537 -12,342 -9.43 594 -14.92 0.0000
2024-10-17 2024-06-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 118,537 -12,342 594 0.0000
2024-08-14 2024-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 118,537 -12,342 594 0.0000
2024-10-17 2024-03-31 13F/A-2 ACACIA RESH ACACIA TCH COM 003881307 130,879 -56,603 -30.19 698 -5.04 0.0001
2024-08-16 2024-03-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 130,879 -56,603 698 0.0000
2024-05-15 2024-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 130,879 -56,603 698 0.0001
2024-08-16 2023-12-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 187,482 98,446 110.57 735 126.54 0.0001
2024-02-13 2023-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 187,482 98,446 735 0.0001
2023-11-15 2023-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 89,036 -35,357 -28.42 325 -37.33 0.0000
2023-08-14 2023-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 124,393 -35,370 -22.14 517 -16.07 0.0001
2023-05-15 2023-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 159,763 62,370 64.04 617 50.24 0.0001
2023-02-14 2022-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 97,393 26 0.03 410 4.33 0.0000
2022-11-14 2022-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 97,367 -87,873 -47.44 393 -57.97 0.0001
2022-10-27 2022-06-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 185,240 148,483 403.96 935 463.25 0.0001
2022-08-15 2022-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 185,240 148,483 935 0.0001
2022-10-27 2022-03-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 36,757 -21,773 -37.20 166 -44.67 0.0000
2022-05-13 2022-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 36,757 -21,773 166 0.0000
2022-02-14 2021-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 58,530 -65,381 -52.76 300 -64.37 0.0000
2021-11-15 2021-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 123,911 -17,381 -12.30 842 -11.92 0.0001
2021-08-23 2021-06-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 141,292 31,251 28.40 956 30.60 0.0001
2021-08-16 2021-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 141,292 31,251 956 0.0000
2021-05-17 2021-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 110,041 -498,358 -81.91 732 -69.46 0.0001
2021-02-16 2020-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 608,399 -273,386 -31.00 2,397 -21.67 0.0004
2020-11-13 2020-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 881,785 -361,868 -29.10 3,060 -39.85 0.0006
2020-08-14 2020-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 1,243,653 1,085,477 686.25 5,087 1,345.17 0.0011
2020-05-26 2020-03-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 158,176 -144,876 -47.81 352 -56.33 0.0001
2020-05-15 2020-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 158,176 -144,876 352 27.0409
2020-02-14 2019-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 303,052 190,444 169.12 806 166.89 0.0002
2019-11-14 2019-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 112,608 98,684 708.73 302 636.59 0.0001
2019-08-14 2019-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 13,924 -295,536 -95.50 41 -95.94 0.0000
2019-05-15 2019-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 309,460 215,163 228.18 1,009 257.80 0.0003
2019-02-14 2018-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 94,297 -3,640 -3.72 282 -9.90 0.0001
2019-04-23 2018-09-30 13F/A-2 ACACIA RESH ACACIA TCH COM 003881307 97,937 -45,309 -31.63 313 -47.31 0.0001
2018-11-20 2018-09-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 97,937 0 313 0.0001
2018-11-14 2018-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 97,937 -45,309 313
2019-04-23 2018-06-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 143,246 10,023 7.52 594 27.19 0.0002
2018-08-14 2018-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 143,246 10,023 594
2019-04-23 2018-03-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 133,223 -6,698 -4.79 467 -17.64 0.0001
2018-05-14 2018-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 133,223 -6,698 467
2019-04-23 2017-12-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 139,921 -51,013 -26.72 567 -34.68 0.0002
2018-02-14 2017-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 139,921 -51,013 567
2017-11-14 2017-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 190,934 -137,288 -41.83 868 -35.51 0.0003
2017-08-11 2017-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 328,222 -25,713 -7.26 1,346 -33.89 0.0004
2017-05-22 2017-03-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 353,935 -48,785 -12.11 2,036 -22.20 0.0006
2017-05-12 2017-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 353,935 2,036
2017-02-22 2016-12-31 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 402,720 147,874 58.02 2,617 57.46 0.0009
2017-02-13 2016-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 402,720 2,617
2016-11-10 2016-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 254,846 243,955 2,239.97 1,662 3,362.50 0.0006
2016-08-12 2016-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 10,891 -47,190 -81.25 48 -78.18 0.0000
2016-05-12 2016-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 58,081 40,222 225.22 220 189.47 0.0001
2016-02-09 2015-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 17,859 -69,443 -79.54 76 -90.40 0.0000
2016-02-08 2015-09-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 87,302 34,486 65.29 792 71.06 0.0003
2015-11-09 2015-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 87,302 792
2015-08-12 2015-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 52,816 -4,409 -7.70 463 -24.35 0.0002
2015-05-14 2015-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 57,225 -48,329 -45.79 612 -65.77 0.0002
2015-02-13 2014-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 105,554 -11,917 -10.14 1,788 -1.65 0.0007
2014-12-16 2014-09-30 13F/A-1 ACACIA RESH ACACIA TCH COM 003881307 117,471 -26,015 -18.13 1,818 -28.62 0.0007
2014-11-14 2014-09-30 13F ACACIA RESH ACACIA TCH COM 003881307 117,471 1,818
2014-08-12 2014-06-30 13F ACACIA RESH ACACIA TCH COM 003881307 143,486 34,654 31.84 2,547 53.06 0.0044
2014-05-13 2014-03-31 13F ACACIA RESH ACACIA TCH COM 003881307 108,832 68,623 170.67 1,664 184.44 0.0007
2014-02-13 2013-12-31 13F ACACIA RESH ACACIA TCH COM 003881307 40,209 623 1.57 585 -35.93 0.0002
2013-11-13 2013-09-30 13F ACACIA RESEARCH CORP COM ST COM 003881307 39,586 -45,907 -53.70 913 -52.22 0.0004
2013-08-08 2013-06-30 13F ACACIA RESEARCH CORP COM ST COM 003881307 85,493 85,493 1,911 0.0010
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.