Forrester Research, Inc.
DE ˙ DB ˙ US3465631097
5,90 € ↓ -0,20 (-3,28%)
2026-06-03
DEL PRIS
SecurityDE:FFR / Forrester Research, Inc.
InstitutionJane Street Group, Llc
Latest Disclosed Ownership86,342 shares
Latest Disclosed Value $ 488,695
Jane Street Group, Llc ownership in FFR / Forrester Research, Inc.

On May 12, 2026 - Jane Street Group, Llc filed a 13F-HR form disclosing ownership of 86,342 shares of Forrester Research, Inc. (DE:FFR) valued at $417,895 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 0 shares of Forrester Research, Inc.. The current value of the position is $509,418 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F FORRESTER RESH COM 346563109 86,342 86,342 489 0.0000
2026-02-12 2025-12-31 13F FORRESTER RESH COM 346563109 0 -24,802 -100.00 0 -100.00
2025-11-14 2025-09-30 13F FORRESTER RESH COM 346563109 24,802 4,061 19.58 263 27.80 0.0000
2025-08-14 2025-06-30 13F FORRESTER RESH COM 346563109 20,741 1,494 7.76 205 15.82 0.0000
2025-05-19 2025-03-31 13F/A-1 FORRESTER RESH COM 346563109 19,247 19,247 178 0.0000
2025-05-14 2025-03-31 13F FORRESTER RESH COM 346563109 19,247 19,247 178 0.0000
2025-02-14 2024-12-31 13F FORRESTER RESH COM 346563109 0 -59,669 -100.00 0 -100.00
2024-11-15 2024-09-30 13F FORRESTER RESH COM 346563109 59,669 -108,643 -64.55 1,075 -62.63 0.0002
2024-08-15 2024-06-30 13F FORRESTER RESH COM 346563109 168,312 67,744 67.36 2,875 32.56 0.0007
2024-05-16 2024-03-31 13F FORRESTER RESH COM 346563109 100,568 100,568 2,168 0.0005
2023-11-15 2023-09-30 13F FORRESTER RESH COM 346563109 0 -11,198 -100.00 0 -100.00
2023-08-14 2023-06-30 13F FORRESTER RESH COM 346563109 11,198 11,198 326 0.0001
2022-11-14 2022-09-30 13F FORRESTER RESH COM 346563109 0 -5,704 -100.00 0 -100.00
2022-08-16 2022-06-30 13F FORRESTER RESH COM 346563109 5,704 5,704 273 0.0001
2022-05-17 2022-03-31 13F FORRESTER RESH COM 346563109 0 -11,551 -100.00 0 -100.00
2022-02-15 2021-12-31 13F FORRESTER RESH COM 346563109 11,551 11,551 678 0.0002
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.