Forrester Research, Inc.
DE ˙ DB ˙ US3465631097
5,90 € ↓ -0,20 (-3,28%)
2026-06-03
DEL PRIS
SecurityDE:FFR / Forrester Research, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership266,389 shares
Latest Disclosed Value $ 1,507,806
Dimensional Fund Advisors Lp reports 33.10% decrease in ownership of FFR / Forrester Research, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 266,389 shares of Forrester Research, Inc. (DE:FFR) valued at $1,289,323 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 398,181 shares of Forrester Research, Inc.. This represents a change in shares of -33.10% during the quarter. The current value of the position is $1,571,695 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)
2026-05-07 2026-03-31 13F FORRESTER RESH COM 346563109 266,389 -131,792 -33.10 1,508 -53.37 0.0003
2026-02-12 2025-12-31 13F FORRESTER RESH COM 346563109 398,181 -77,629 -16.32 3,233 -35.91 0.0007
2025-11-12 2025-09-30 13F FORRESTER RESH COM 346563109 475,810 -45,162 -8.67 5,043 -2.21 0.0011
2025-08-12 2025-06-30 13F FORRESTER RESH COM 346563109 520,972 9,549 1.87 5,158 9.14 0.0012
2025-05-13 2025-03-31 13F FORRESTER RESH COM 346563109 511,423 34,266 7.18 4,726 -36.81 0.0012
2025-02-13 2024-12-31 13F FORRESTER RESH COM 346563109 477,157 -13,946 -2.84 7,477 -15.45 0.0018
2024-11-07 2024-09-30 13F FORRESTER RESH COM 346563109 491,103 11,059 2.30 8,844 7.85 0.0021
2024-08-09 2024-06-30 13F FORRESTER RESH COM 346563109 480,044 -65,065 -11.94 8,199 -30.23 0.0021
2024-05-10 2024-03-31 13F FORRESTER RESH COM 346563109 545,109 -65,193 -10.68 11,753 -28.18 0.0032
2024-02-07 2023-12-31 13F FORRESTER RESH COM 346563109 610,302 5,841 0.97 16,363 -6.34 0.0048
2023-11-09 2023-09-30 13F FORRESTER RESH COM 346563109 604,461 -5,514 -0.90 17,470 -1.55 0.0057
2023-08-09 2023-06-30 13F FORRESTER RESH COM 346563109 609,975 -2,206 -0.36 17,744 -10.40 0.0057
2023-05-12 2023-03-31 13F FORRESTER RESH COM 346563109 612,181 -9,723 -1.56 19,804 89,913.64 0.0067
2023-02-09 2022-12-31 13F FORRESTER RESH COM 346563109 621,904 -711 -0.11 22 -99.90 0.0066
2022-11-10 2022-09-30 13F FORRESTER RESH COM 346563109 622,615 -288 -0.05 22,420 -24.76 0.0086
2022-08-12 2022-06-30 13F FORRESTER RESH COM 346563109 622,903 -1,498 -0.24 29,798 -15.42 0.0107
2022-05-13 2022-03-31 13F FORRESTER RESH COM 346563109 624,401 395 0.06 35,229 -3.87 0.0109
2022-02-09 2021-12-31 13F FORRESTER RESH COM 346563109 624,006 -9,480 -1.50 36,648 17.44 0.0111
2021-11-12 2021-09-30 13F FORRESTER RESH COM 346563109 633,486 -1,510 -0.24 31,207 7.30 0.0101
2021-08-12 2021-06-30 13F FORRESTER RESH COM 346563109 634,996 -9,808 -1.52 29,083 6.18 0.0092
2021-05-14 2021-03-31 13F FORRESTER RESH COM 346563109 644,804 -24,079 -3.60 27,391 -2.27 0.0091
2021-03-08 2020-12-31 13F/A-2 FORRESTER RESH COM 346563109 668,883 -33,067 -4.71 28,026 21.76 0.0101
2021-02-11 2020-12-31 13F FORRESTER RESH COM 346563109 668,883 -33,067 28,026 10,121.5015
2020-11-12 2020-09-30 13F FORRESTER RESH COM 346563109 701,950 -21,157 -2.93 23,017 -0.65 0.0098
2020-08-13 2020-06-30 13F FORRESTER RESH COM 346563109 723,107 -3,228 -0.44 23,168 9.13 0.0102
2020-05-14 2020-03-31 13F FORRESTER RESH COM 346563109 726,335 -18,299 -2.46 21,229 -31.63 0.0111
2020-02-14 2019-12-31 13F FORRESTER RESH COM 346563109 744,634 -21,139 -2.76 31,051 26.16 0.0113
2019-11-12 2019-09-30 13F FORRESTER RESH COM 346563109 765,773 -6,908 -0.89 24,612 -32.27 0.0096
2019-08-13 2019-06-30 13F FORRESTER RESH COM 346563109 772,681 -3,810 -0.49 36,339 -3.21 0.0141
2019-08-12 2019-03-31 13F/A-2 FORRESTER RESH COM 346563109 776,491 -1,154 -0.15 37,544 8.01 0.0150
2019-05-10 2019-03-31 13F FORRESTER RESH COM 346563109 776,491 -1,154 37,544
2019-02-26 2018-12-31 13F/A-1 FORRESTER RESH COM 346563109 777,645 2,723 0.35 34,761 -2.27 0.0157
2019-02-13 2018-12-31 13F FORRESTER RESH COM 346563109 777,645 2,723 34,761
2018-11-13 2018-09-30 13F FORRESTER RESH COM 346563109 774,922 7,461 0.97 35,569 10.48 0.0135
2018-08-10 2018-06-30 13F FORRESTER RESH COM 346563109 767,461 19,275 2.58 32,195 3.81 0.0128
2018-05-11 2018-03-31 13F FORRESTER RESH COM 346563109 748,186 21,970 3.03 31,012 -3.39 0.0129
2018-02-12 2017-12-31 13F FORRESTER RESH COM 346563109 726,216 6,612 0.92 32,099 6.58 0.0133
2017-11-13 2017-09-30 13F FORRESTER RESH COM 346563109 719,604 8,216 1.15 30,116 8.13 0.0132
2017-08-11 2017-06-30 13F FORRESTER RESH COM 346563109 711,388 6,447 0.91 27,851 -0.61 0.0129
2017-05-12 2017-03-31 13F FORRESTER RESH COM 346563109 704,941 8,519 1.22 28,021 -6.32 0.0134
2017-02-09 2016-12-31 13F FORRESTER RESH COM 346563109 696,422 -553 -0.08 29,911 10.32 0.0149
2016-11-10 2016-09-30 13F FORRESTER RESH COM 346563109 696,975 4,623 0.67 27,112 6.24 0.0147
2016-08-09 2016-06-30 13F FORRESTER RESH COM 346563109 692,352 7,681 1.12 25,520 10.90 0.0147
2016-05-13 2016-03-31 13F FORRESTER RESH COM 346563109 684,671 7,445 1.10 23,012 19.31 0.0138
2016-02-10 2015-12-31 13F FORRESTER RESH COM 346563109 677,226 13,728 2.07 19,288 -7.54 0.0120
2015-11-13 2015-09-30 13F FORRESTER RESH COM 346563109 663,498 10,003 1.53 20,861 -11.38 0.0137
2015-08-14 2015-06-30 13F FORRESTER RESH COM 346563109 653,495 -4,213 -0.64 23,539 -2.70 0.0144
2015-05-14 2015-03-31 13F FORRESTER RESH COM 346563109 657,708 8,990 1.39 24,191 -5.26 0.0153
2015-02-06 2014-12-31 13F FORRESTER RESH COM 346563109 648,718 4,414 0.69 25,534 7.51 0.0168
2014-11-13 2014-09-30 13F FORRESTER RESH COM 346563109 644,304 -10,062 -1.54 23,750 -4.18 0.0168
2014-08-08 2014-06-30 13F FORRESTER RESH COM 346563109 654,366 18,227 2.87 24,787 8.69 0.0172
2014-05-14 2014-03-31 13F FORRESTER RESH COM 346563109 636,139 713 0.11 22,805 -6.20 0.0170
2014-02-12 2013-12-31 13F FORRESTER RESH COM 346563109 635,426 3,706 0.59 24,312 4.69 0.0189
2013-11-13 2013-09-30 13F FORRESTER RESH COM 346563109 631,720 2,954 0.47 23,222 0.66 0.0201
2013-08-15 2013-06-30 13F FORRESTER RESH COM 346563109 628,766 628,766 23,070 0.0217
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.