Forrester Research, Inc.
DE ˙ DB ˙ US3465631097
5,90 € ↓ -0,20 (-3,28%)
2026-06-03
DEL PRIS
SecurityDE:FFR / Forrester Research, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership102,647 shares
Latest Disclosed Value $ 580,982
Northern Trust Corp reports 2.61% increase in ownership of FFR / Forrester Research, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 102,647 shares of Forrester Research, Inc. (DE:FFR) valued at $496,811 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 100,040 shares of Forrester Research, Inc.. This represents a change in shares of 2.61% during the quarter. The current value of the position is $605,617 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)
2026-05-14 2026-03-31 13F FORRESTER RESH COM 346563109 102,647 2,607 2.61 581 -28.57 0.0000
2026-02-17 2025-12-31 13F FORRESTER RESH COM 346563109 100,040 -4,824 -4.60 812 -26.91 0.0000
2025-11-14 2025-09-30 13F FORRESTER RESH COM 346563109 104,864 -3,619 -3.34 1,112 3.54 0.0000
2025-08-13 2025-06-30 13F FORRESTER RESH COM 346563109 108,483 -2,891 -2.60 1,074 4.28 0.0001
2025-05-13 2025-03-31 13F FORRESTER RESH COM 346563109 111,374 -3,958 -3.43 1,029 -43.05 0.0002
2025-02-14 2024-12-31 13F FORRESTER RESH COM 346563109 115,332 2,883 2.56 1,807 -10.77 0.0003
2024-11-13 2024-09-30 13F FORRESTER RESH COM 346563109 112,449 55 0.05 2,025 5.52 0.0003
2024-08-14 2024-06-30 13F FORRESTER RESH COM 346563109 112,394 -23,325 -17.19 1,920 -34.42 0.0003
2024-05-14 2024-03-31 13F FORRESTER RESH COM 346563109 135,719 -12,000 -8.12 2,926 -26.11 0.0005
2024-02-13 2023-12-31 13F FORRESTER RESH COM 346563109 147,719 5,063 3.55 3,960 -3.93 0.0007
2023-11-13 2023-09-30 13F FORRESTER RESH COM 346563109 142,656 -733 -0.51 4,123 -1.17 0.0008
2023-08-11 2023-06-30 13F FORRESTER RESH COM 346563109 143,389 53 0.04 4,171 -10.03 0.0008
2023-05-15 2023-03-31 13F FORRESTER RESH COM 346563109 143,336 1,258 0.89 4,637 -8.74 0.0009
2023-02-13 2022-12-31 13F FORRESTER RESH COM 346563109 142,078 14,338 11.22 5,081 10.41 0.0011
2022-11-14 2022-09-30 13F FORRESTER RESH COM 346563109 127,740 788 0.62 4,601 -24.24 0.0011
2022-08-12 2022-06-30 13F FORRESTER RESH COM 346563109 126,952 -3,221 -2.47 6,073 -17.31 0.0013
2022-05-13 2022-03-31 13F FORRESTER RESH COM 346563109 130,173 -4,411 -3.28 7,344 -7.09 0.0013
2022-02-08 2021-12-31 13F FORRESTER RESH COM 346563109 134,584 -5,181 -3.71 7,904 14.78 0.0013
2021-11-15 2021-09-30 13F FORRESTER RESH COM 346563109 139,765 -3,354 -2.34 6,886 5.07 0.0012
2021-08-13 2021-06-30 13F FORRESTER RESH COM 346563109 143,119 -4,338 -2.94 6,554 4.63 0.0012
2021-05-12 2021-03-31 13F FORRESTER RESH COM 346563109 147,457 -12,910 -8.05 6,264 -6.79 0.0012
2021-02-11 2020-12-31 13F FORRESTER RESH COM 346563109 160,367 -8,186 -4.86 6,720 21.61 0.0013
2020-11-16 2020-09-30 13F FORRESTER RESH COM 346563109 168,553 -5,896 -3.38 5,526 -1.14 0.0012
2020-08-14 2020-06-30 13F FORRESTER RESH COM 346563109 174,449 12,054 7.42 5,590 17.78 0.0013
2020-05-14 2020-03-31 13F FORRESTER RESH COM 346563109 162,395 387 0.24 4,746 -29.75 0.0014
2020-02-14 2019-12-31 13F FORRESTER RESH COM 346563109 162,008 -2,696 -1.64 6,756 27.62 0.0015
2019-11-13 2019-09-30 13F FORRESTER RESH COM 346563109 164,704 5,291 3.32 5,294 -29.39 0.0013
2019-08-13 2019-06-30 13F FORRESTER RESH COM 346563109 159,413 1,451 0.92 7,497 -1.85 0.0018
2019-05-13 2019-03-31 13F FORRESTER RESH COM 346563109 157,962 1,885 1.21 7,638 9.46 0.0019
2019-02-12 2018-12-31 13F FORRESTER RESH COM 346563109 156,077 -4,125 -2.57 6,978 -5.11 0.0020
2018-11-14 2018-09-30 13F FORRESTER RESH COM 346563109 160,202 5,181 3.34 7,354 13.09 0.0018
2018-09-18 2018-06-30 13F/A-1 FORRESTER RESH COM 346563109 155,021 7,345 4.97 6,503 6.24 0.0017
2018-08-14 2018-06-30 13F FORRESTER RESH COM 346563109 156,193 8,517 6,552
2018-05-09 2018-03-31 13F FORRESTER RESH COM 346563109 147,676 3,204 2.22 6,121 -4.13 0.0016
2018-02-14 2017-12-31 13F FORRESTER RESH COM 346563109 144,472 885 0.62 6,385 6.26 0.0016
2017-11-13 2017-09-30 13F FORRESTER RESH COM 346563109 143,587 -8,567 -5.63 6,009 0.89 0.0016
2017-08-11 2017-06-30 13F FORRESTER RESH COM 346563109 152,154 14,003 10.14 5,956 8.49 0.0017
2017-05-12 2017-03-31 13F FORRESTER RESH COM 346563109 138,151 -256 -0.18 5,490 -7.65 0.0016
2017-02-13 2016-12-31 13F FORRESTER RESH COM 346563109 138,407 -1,520 -1.09 5,945 9.20 0.0018
2016-11-09 2016-09-30 13F FORRESTER RESH COM 346563109 139,927 616 0.44 5,444 6.02 0.0017
2016-08-12 2016-06-30 13F FORRESTER RESH COM 346563109 139,311 844 0.61 5,135 10.34 0.0017
2016-08-19 2016-03-31 13F/A-1 FORRESTER RESH COM 346563109 138,467 3,983 2.96 4,654 21.51 0.0015
2016-05-13 2016-03-31 13F FORRESTER RESH COM 346563109 138,467 4,654
2016-02-12 2015-12-31 13F FORRESTER RESH COM 346563109 134,484 67 0.05 3,830 -9.37 0.0013
2015-11-12 2015-09-30 13F FORRESTER RESH COM 346563109 134,417 -3,672 -2.66 4,226 -15.04 0.0014
2015-08-13 2015-06-30 13F FORRESTER RESH COM 346563109 138,089 -3,348 -2.37 4,974 -4.38 0.0034
2015-05-14 2015-03-31 13F FORRESTER RESH COM 346563109 141,437 -1,176 -0.82 5,202 -7.32 0.0016
2015-02-12 2014-12-31 13F FORRESTER RESH COM 346563109 142,613 -7,613 -5.07 5,613 1.37 0.0017
2014-11-13 2014-09-30 13F FORRESTER RESH COM 346563109 150,226 -8,409 -5.30 5,537 -7.85 0.0017
2014-08-14 2014-06-30 13F FORRESTER RESH COM 346563109 158,635 -29,328 -15.60 6,009 -10.82 0.0019
2014-05-14 2014-03-31 13F FORRESTER RESH COM 346563109 187,963 -13,290 -6.60 6,738 -12.48 0.0021
2014-02-21 2013-12-31 13F/A-1 FORRESTER RESH COM 346563109 201,253 -1,259 -0.62 7,699 3.48 0.0025
2014-02-12 2013-12-31 13F FORRESTER RESH COM 346563109 201,253 7,699
2013-11-13 2013-09-30 13F FORRESTER RESH COM 346563109 202,512 -17,670 -8.03 7,440 -7.90 0.0026
2013-08-09 2013-06-30 13F FORRESTER RESH COM 346563109 220,182 220,182 8,078 0.0029
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.