Forrester Research, Inc.
DE ˙ DB ˙ US3465631097
5,90 € ↓ -0,20 (-3,28%)
2026-06-03
DEL PRIS
SecurityDE:FFR / Forrester Research, Inc.
InstitutionTwo Sigma Advisers, Lp
Latest Disclosed Ownership105,903 shares
Latest Disclosed Value $ 859,932
Two Sigma Advisers, Lp reports 25.16% decrease in ownership of FFR / Forrester Research, Inc.

On February 17, 2026 - Two Sigma Advisers, Lp filed a 13F-HR form disclosing ownership of 105,903 shares of Forrester Research, Inc. (DE:FFR) valued at $661,894 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 141,503 shares of Forrester Research, Inc.. This represents a change in shares of -25.16% during the quarter. The current value of the position is $624,828 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)
2026-02-17 2025-12-31 13F FORRESTER RESH COM 346563109 105,903 -35,600 -25.16 860 -42.70 0.0017
2025-11-14 2025-09-30 13F FORRESTER RESH COM 346563109 141,503 20,500 16.94 1,500 25.23 0.0030
2025-08-14 2025-06-30 13F FORRESTER RESH COM 346563109 121,003 -1,100 -0.90 1,198 6.12 0.0025
2025-05-15 2025-03-31 13F FORRESTER RESH COM 346563109 122,103 -18,900 -13.40 1,128 -48.94 0.0025
2025-02-14 2024-12-31 13F FORRESTER RESH COM 346563109 141,003 -15,300 -9.79 2,210 -21.53 0.0051
2024-11-14 2024-09-30 13F FORRESTER RESH COM 346563109 156,303 19,900 14.59 2,815 20.87 0.0066
2024-08-14 2024-06-30 13F FORRESTER RESH COM 346563109 136,403 82,700 154.00 2,330 101.30 0.0052
2024-05-15 2024-03-31 13F FORRESTER RESH COM 346563109 53,703 6,900 14.74 1,158 -7.74 0.0027
2024-02-14 2023-12-31 13F FORRESTER RESH COM 346563109 46,803 5,200 12.50 1,255 4.33 0.0029
2023-11-14 2023-09-30 13F FORRESTER RESH COM 346563109 41,603 -17,400 -29.49 1,202 -29.95 0.0031
2023-08-14 2023-06-30 13F FORRESTER RESH COM 346563109 59,003 3,000 5.36 1,716 -5.25 0.0044
2023-05-15 2023-03-31 13F FORRESTER RESH COM 346563109 56,003 17,900 46.98 1,812 32.97 0.0047
2023-02-14 2022-12-31 13F FORRESTER RESH COM 346563109 38,103 -200 -0.52 1,363 -1.23 0.0038
2022-11-14 2022-09-30 13F FORRESTER RESH COM 346563109 38,303 -3,500 -8.37 1,379 -31.05 0.0040
2022-08-15 2022-06-30 13F FORRESTER RESH COM 346563109 41,803 -1,700 -3.91 2,000 -18.50 0.0057
2022-05-16 2022-03-31 13F FORRESTER RESH COM 346563109 43,503 -8,600 -16.51 2,454 -19.80 0.0065
2022-02-14 2021-12-31 13F FORRESTER RESH COM 346563109 52,103 10,800 26.15 3,060 50.37 0.0077
2021-11-15 2021-09-30 13F FORRESTER RESH COM 346563109 41,303 36,400 742.40 2,035 804.44 0.0053
2021-08-16 2021-06-30 13F FORRESTER RESH COM 346563109 4,903 -1,700 -25.75 225 -19.64 0.0006
2021-05-17 2021-03-31 13F FORRESTER RESH COM 346563109 6,603 -1,100 -14.28 280 -13.31 0.0008
2021-02-16 2020-12-31 13F FORRESTER RESH COM 346563109 7,703 -2,900 -27.35 323 -7.18 0.0009
2020-11-16 2020-09-30 13F FORRESTER RESH COM 346563109 10,603 -5,884 -35.69 348 -34.09 0.0010
2020-09-15 2020-06-30 13F/A-1 FORRESTER RESH COM 346563109 16,487 -2,100 -11.30 528 -2.76 0.0016
2020-08-14 2020-06-30 13F FORRESTER RESH COM 346563109 16,487 -2,100 528 1,525.7446
2020-05-15 2020-03-31 13F FORRESTER RESH COM 346563109 18,587 -305 -1.61 543 -31.09 0.0021
2020-02-14 2019-12-31 13F FORRESTER RESH COM 346563109 18,892 -9,000 -32.27 788 -12.05 0.0018
2019-11-14 2019-09-30 13F FORRESTER RESH COM 346563109 27,892 5,600 25.12 896 -14.50 0.0022
2019-08-14 2019-06-30 13F FORRESTER RESH COM 346563109 22,292 -200 -0.89 1,048 -3.59 0.0026
2019-05-15 2019-03-31 13F FORRESTER RESH COM 346563109 22,492 -1,300 -5.46 1,087 2.16 0.0027
2019-02-14 2018-12-31 13F FORRESTER RESH COM 346563109 23,792 -5,373 -18.42 1,064 -20.54 0.0029
2018-11-14 2018-09-30 13F FORRESTER RESH COM 346563109 29,165 -2,900 -9.04 1,339 -0.45 0.0033
2018-08-14 2018-06-30 13F FORRESTER RESH COM 346563109 32,065 -1,800 -5.32 1,345 -4.20 0.0036
2018-05-15 2018-03-31 13F FORRESTER RESH COM 346563109 33,865 -500 -1.45 1,404 -7.57 0.0038
2018-02-14 2017-12-31 13F FORRESTER RESH COM 346563109 34,365 -4,400 -11.35 1,519 -6.35 0.0041
2017-11-14 2017-09-30 13F FORRESTER RESH COM 346563109 38,765 2,300 6.31 1,622 13.59 0.0046
2017-08-14 2017-06-30 13F FORRESTER RESH COM 346563109 36,465 11,500 46.06 1,428 43.95 0.0047
2017-05-15 2017-03-31 13F FORRESTER RESH COM 346563109 24,965 3,700 17.40 992 8.65 0.0033
2017-02-14 2016-12-31 13F FORRESTER RESH COM 346563109 21,265 -950 -4.28 913 5.67 0.0035
2016-11-14 2016-09-30 13F FORRESTER RESH COM 346563109 22,215 2,200 10.99 864 17.07 0.0037
2016-08-15 2016-06-30 13F FORRESTER RESH COM 346563109 20,015 -1,500 -6.97 738 2.07 0.0037
2016-05-16 2016-03-31 13F FORRESTER RESH COM 346563109 21,515 -6,450 -23.06 723 -9.17 0.0040
2016-02-16 2015-12-31 13F FORRESTER RESH COM 346563109 27,965 -467 -1.64 796 -10.96 0.0047
2015-11-16 2015-09-30 13F FORRESTER RESH COM 346563109 28,432 4,100 16.85 894 2.05 0.0056
2016-02-09 2015-06-30 13F/A-1 FORRESTER RESH COMMON STOCK 346563109 24,332 194 0.80 876 -1.35 0.0067
2015-08-14 2015-06-30 13F FORRESTER RESEARCH COMMON STOCK 346563109 24,280 873
2016-02-09 2015-03-31 13F/A-1 FORRESTER RESH COM 346563109 24,138 24,138 309.95 888 309.22 0.0068
2015-05-15 2015-03-31 13F FORRESTER RESH COM 346563109 22,180 817
2015-02-17 2014-12-31 13F FORRESTER RESH COM 346563109 0 -5,888 -100.00 0 -100.00
2016-02-09 2014-09-30 13F/A-1 FORRESTER RESH COM 346563109 5,888 -16,400 -73.58 217 -74.53 0.0017
2014-11-14 2014-09-30 13F FORRESTER RESH COM 346563109 5,888 216
2014-02-14 2013-12-31 13F Forrester Research Common Stock 346563109 22,288 -56,350 -71.66 852 -70.52 0.0082
2013-11-14 2013-09-30 13F Forrester Research Common Stock 346563109 78,638 -3,300 -4.03 2,890 -3.86 0.0344
2013-08-14 2013-06-30 13F FORRESTER RESH COM 346563109 81,938 81,938 3,006 0.0430
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.