Renaissance Technologies Llc reports 21.91% increase in ownership of FSP / Franklin Street Properties Corp.

Franklin Street Properties Corp.

US ˙ NYSEAM ˙ US35471R1068

Security	FSP / Franklin Street Properties Corp.
Institution	Renaissance Technologies Llc
Manager	James Simons
Latest Disclosed Ownership	1,692,603 shares
Latest Disclosed Value	$ 1,124,735

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 1,692,603 shares of Franklin Street Properties Corp. (US:FSP) valued at $1,124,735 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,388,426 shares of Franklin Street Properties Corp.. This represents a change in shares of 21.91% during the quarter. The current value of the position is $968,846 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 Premium Registration Required .

Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-14	2026-03-31	13F	FRANKLIN STR PPTYS	COM	35471R106	1,692,603	304,177	21.91	1,125	-14.39	0.0018
2026-02-12	2025-12-31	13F	FRANKLIN STR PPTYS	COM	35471R106	1,388,426	479,943	52.83	1,313	-9.64	0.0020
2025-11-13	2025-09-30	13F	FRANKLIN STR PPTYS	COM	35471R106	908,483	377,900	71.22	1,454	67.01	0.0019
2025-08-13	2025-06-30	13F	FRANKLIN STR PPTYS	COM	35471R106	530,583	54,800	11.52	870	2.84	0.0012
2025-05-14	2025-03-31	13F	FRANKLIN STR PPTYS	COM	35471R106	475,783	205,800	76.23	847	71.26	0.0013
2025-02-13	2024-12-31	13F	FRANKLIN STR PPTYS	COM	35471R106	269,983	-50,300	-15.70	494	-12.72	0.0007
2024-11-13	2024-09-30	13F	FRANKLIN STR PPTYS	COM	35471R106	320,283	-308,000	-49.02	567	-41.10	0.0009
2024-08-09	2024-06-30	13F	FRANKLIN STR PPTYS	COM	35471R106	628,283	-170,125	-21.31	961	96,000.00	0.0016
2024-05-13	2024-03-31	13F	FRANKLIN STR PPTYS	COM	35471R106	798,408	139,820	21.23	2	0.00	0.0028
2024-02-13	2023-12-31	13F	FRANKLIN STR PPTYS	COM	35471R106	658,588	-118,700	-15.27	2	0.00	0.0026
2023-11-14	2023-09-30	13F	FRANKLIN STR PPTYS	COM	35471R106	777,288	-52,591	-6.34	1	0.00	0.0025
2023-08-11	2023-06-30	13F	FRANKLIN STR PPTYS	COM	35471R106	829,879	-248,013	-23.01	1	0.00	0.0017
2023-05-12	2023-03-31	13F	FRANKLIN STR PPTYS	COM	35471R106	1,077,892	386,407	55.88	2	0.00	0.0022
2023-02-13	2022-12-31	13F	FRANKLIN STR PPTYS	COM	35471R106	691,485	-248,452	-26.43	2	-99.96	0.0026
2022-11-14	2022-09-30	13F	FRANKLIN STR PPTYS	COM	35471R106	939,937	-560,700	-37.36	2,472	-60.50	0.0035
2022-08-12	2022-06-30	13F	FRANKLIN STR PPTYS	COM	35471R106	1,500,637	-136,900	-8.36	6,258	-35.22	0.0074
2022-05-13	2022-03-31	13F	FRANKLIN STR PPTYS	COM	35471R106	1,637,537	254,500	18.40	9,661	17.40	0.0113
2022-02-11	2021-12-31	13F	FRANKLIN STR PPTYS	COM	35471R106	1,383,037	-348,200	-20.11	8,229	2.44	0.0102
2021-11-12	2021-09-30	13F	FRANKLIN STR PPTYS	COM	35471R106	1,731,237	-303,200	-14.90	8,033	-24.93	0.0104
2021-08-13	2021-06-30	13F	FRANKLIN STR PPTYS	COM	35471R106	2,034,437	-322,100	-13.67	10,701	-16.68	0.0134
2021-05-13	2021-03-31	13F	FRANKLIN STR PPTYS	COM	35471R106	2,356,537	-101,023	-4.11	12,843	19.58	0.0160
2021-02-10	2020-12-31	13F	FRANKLIN STR PPTYS	COM	35471R106	2,457,560	-528,558	-17.70	10,740	-1.73	0.0117
2020-11-13	2020-09-30	13F	FRANKLIN STR PPTYS	COM	35471R106	2,986,118	-402,179	-11.87	10,929	-36.63	0.0109
2020-08-13	2020-06-30	13F	FRANKLIN STR PPTYS	COM	35471R106	3,388,297	-373,800	-9.94	17,246	-20.00	0.0149
2020-05-14	2020-03-31	13F	FRANKLIN STR PPTYS	COM	35471R106	3,762,097	32,900	0.88	21,557	-32.47	0.0209
2020-02-13	2019-12-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	3,729,197	268,997	7.77	31,922	9.05	0.0245
2019-11-13	2019-09-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	3,460,200	243,400	7.57	29,273	23.31	0.0248
2019-08-12	2019-06-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	3,216,800	372,200	13.08	23,740	16.07	0.0209
2019-05-14	2019-03-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	2,844,600	290,600	11.38	20,453	28.55	0.0186
2019-02-12	2018-12-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	2,554,000	209,300	8.93	15,911	-15.07	0.0174
2018-11-13	2018-09-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	2,344,700	250,200	11.95	18,734	4.49	0.0193
2018-08-13	2018-06-30	13F/A-1	FRANKLIN STREET PPTYS	COM	35471R106	2,094,500	104,400	5.25	17,929	7.12	0.0195
2018-08-13	2018-06-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,990,100			16,737
2018-05-14	2018-03-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,990,100	-340,000	-14.59	16,737	-33.12	0.0183
2018-02-13	2017-12-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	2,330,100	356,900	18.09	25,025	19.42	0.0276
2017-11-13	2017-09-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,973,200	360,300	22.34	20,955	17.26	0.0247
2017-08-11	2017-06-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,612,900	61,700	3.98	17,871	-5.10	0.0228
2017-05-12	2017-03-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,551,200	22,500	1.47	18,832	-4.95	0.0263
2017-02-13	2016-12-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,528,700	14,800	0.98	19,812	3.86	0.0313
2016-11-14	2016-09-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,513,900	124,000	8.92	19,075	11.85	0.0337
2016-08-12	2016-06-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,389,900	135,700	10.82	17,054	28.16	0.0325
2016-05-13	2016-03-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,254,200	223,000	21.63	13,307	24.68	0.0253
2016-02-11	2015-12-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	1,031,200	37,300	3.75	10,673	-0.10	0.0233
2015-11-12	2015-09-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	993,900	397,100	66.54	10,684	58.28	0.0255
2015-08-14	2015-06-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	596,800	134,200	29.01	6,750	13.81	0.0154
2015-05-13	2015-03-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	462,600	69,567	17.70	5,931	22.97	0.0126
2015-02-13	2014-12-31	13F	FRANKLIN STREET PPTYS	COM	35471R106	393,033	299,933	322.16	4,823	361.53	0.0116
2014-11-12	2014-09-30	13F	FRANKLIN STREET PPTYS	COM	35471R106	93,100	93,100		1,045		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.