Franklin Street Properties Corp.
US ˙ NYSEAM ˙ US35471R1068

SecurityFSP / Franklin Street Properties Corp.
InstitutionSei Investments Co
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Sei Investments Co closes position in FSP / Franklin Street Properties Corp.

On May 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 0 shares of Franklin Street Properties Corp. (US:FSP) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 46,835 shares of Franklin Street Properties Corp.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 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)
2026-05-13 2026-03-31 13F FRANKLIN STR PPTYS COM 35471R106 0 -46,835 -100.00 0 -100.00
2026-02-13 2025-12-31 13F FRANKLIN STR PPTYS COM 35471R106 46,835 0 0.00 44 -40.54 0.0000
2025-11-13 2025-09-30 13F FRANKLIN STR PPTYS COM 35471R106 46,835 0 0.00 75 -2.63 0.0001
2025-08-14 2025-06-30 13F FRANKLIN STR PPTYS COM 35471R106 46,835 0 0.00 77 -8.43 0.0001
2025-05-14 2025-03-31 13F/A-1 FRANKLIN STR PPTYS COM 35471R106 46,835 0 0.00 83 -2.35 0.0001
2025-05-13 2025-03-31 13F FRANKLIN STR PPTYS COM 35471R106 46,835 0 86 0.0001
2025-02-11 2024-12-31 13F FRANKLIN STR PPTYS COM 35471R106 46,835 0 0.00 86 3.66 0.0001
2024-11-12 2024-09-30 13F FRANKLIN STR PPTYS COM 35471R106 46,835 46,835 83 0.0001
2023-05-12 2023-03-31 13F FRANKLIN STR PPTYS COM 35471R106 0 -21,704 -100.00 0 -100.00
2023-02-10 2022-12-31 13F FRANKLIN STR PPTYS COM 35471R106 21,704 21,704 59 0.0001
2021-05-12 2021-03-31 13F FRANKLIN STR PPTYS COM 35471R106 0 -18,680 -100.00 0 -100.00
2021-02-08 2020-12-31 13F FRANKLIN STR PPTYS COM 35471R106 18,680 0 0.00 82 20.59 0.0002
2020-12-04 2020-09-30 13F/A-1 FRANKLIN STR PPTYS COM 35471R106 18,680 0 0.00 68 -28.42 0.0002
2020-11-06 2020-09-30 13F FRANKLIN STR PPTYS COM 35471R106 18,680 0 68 163.7289
2020-08-17 2020-06-30 13F/A-1 FRANKLIN STR PPTYS COM 35471R106 18,680 0 0.00 95 -11.21 0.0003
2020-05-14 2020-03-31 13F FRANKLIN STR PPTYS COM 35471R106 18,680 18,680 107 0.0004
2019-08-14 2019-06-30 13F FRANKLIN STREET PPTYS COM 35471R106 0 -6,888 -100.00 0 -100.00
2019-05-15 2019-03-31 13F FRANKLIN STREET PPTYS COM 35471R106 6,888 -8,312 -54.68 50 -47.37 0.0002
2019-02-13 2018-12-31 13F FRANKLIN STREET PPTYS COM 35471R106 15,200 15,200 95 0.0003
2018-08-03 2018-06-30 13F FRANKLIN STREET PPTYS COM 35471R106 0 -212 -100.00 0 -100.00
2018-05-11 2018-03-31 13F FRANKLIN STREET PPTYS COM 35471R106 212 -2,822 -93.01 2 -93.75 0.0000
2018-02-08 2017-12-31 13F FRANKLIN STREET PPTYS COM 35471R106 3,034 2,535 508.02 32 540.00 0.0001
2017-11-06 2017-09-30 13F FRANKLIN STREET PPTYS COM 35471R106 499 -10,633 -95.52 5 -95.93 0.0000
2017-07-31 2017-06-30 13F FRANKLIN STREET PPTYS COM 35471R106 11,132 10,693 2,435.76 123 2,360.00 0.0005
2017-05-05 2017-03-31 13F FRANKLIN STREET PPTYS COM 35471R106 439 -660 -60.05 5 -64.29 0.0000
2017-02-02 2016-12-31 13F FRANKLIN STREET PPTYS COM 35471R106 1,099 289 35.68 14 40.00 0.0001
2016-11-04 2016-09-30 13F FRANKLIN STREET PPTYS COM 35471R106 810 320 65.31 10 66.67 0.0001
2016-08-11 2016-06-30 13F FRANKLIN STREET PPTYS COM 35471R106 490 328 202.47 6 200.00 0.0000
2016-05-10 2016-03-31 13F/A-1 FRANKLIN STREET PPTYS COM 35471R106 162 162 2 0.0000
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.