FSP · Franklin Street Properties Corp · Shareholders & Ownership

$0.46 -0.01 (-1.13%)

Market Cap

$47.72M

103.69M

Volume · Oct 27 179.39K Avg daily vol (3M) 751.85K

Every disclosed holder of FSP in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns FSP

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	107	56,737,182	54.72%	Yes
Insiders (Forms 3, 4, 5)	7	8,253,573	7.96%	Yes
13D/G-only blocks	3	15,271,224	14.73%	Yes
Remaining	—	23,428,361	22.59%	Rest
Registered funds (N-PORT, not summed)	33	7,476,185	7.21%	No

Shares outstanding: 103,690,340, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of FSP

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	PRIVATE MANAGEMENT GROUP INC 13F CIK 1142031 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	10,161,175	9.80%	+107,557	Jun 30, 2026	carried, not yet filed for the newest quarter
2	Newtyn Management, LLC 13F CIK 1569241 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	7,150,000	6.90%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
3	Powell Anderson Capital Partners LLC 13D CIK 2048057 · Investment adviser · Oct 6, 2026 Item 4 purpose: Passive investment	7,057,763	6.81%	—	Oct 6, 2026
4	Converium Capital Inc. 13F CIK 2043653 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	6,608,478	6.37%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
5	Pacific Oak SOR Properties, LLC 13D CIK 1452936 · Unknown · Jan 9, 2024	5,213,461	5.03%	—	Jan 9, 2024
6	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	4,789,235	4.62%	-174,134	Jun 30, 2026	carried, not yet filed for the newest quarter
6.1	BANK OF AMERICA CORP /DE/ 13G CIK 70858 · Bank · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	5,433,645	5.24%	+240,887	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
7	MCGILLICUDDY DENNIS J Insider CIK 1240925 · May 28, 2026 Director, issuer-wide	4,068,530	3.92%	+80,342	May 28, 2026	Director, issuer-wide
8	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,736,238	3.60%	+120,472	Jun 30, 2026	carried, not yet filed for the newest quarter
9	Schanzer Bruce J Insider CIK 1522587 · May 30, 2025 Director, Pres. & Chief Exec. Officer, issuer-wide	3,514,099	3.39%	+24,725	May 30, 2025	Director, Pres. & Chief Exec. Officer, issuer-wide
10	Odle Jonathan Bennett 13G CIK 1977899 · Unknown · Sep 30, 2025 Rule 13d-1(c), passive investor	3,000,000	2.89%	—	Sep 30, 2025	Rule 13d-1(c), passive investor
11	GUARDSMAN PRIVATE CAPITAL MANAGEMENT, INC. 13F CIK 2110760 · Registered investment adviser · Sep 30, 2026	2,869,173	2.77%	0	Sep 30, 2026
12	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	2,694,319	2.60%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
13	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,996,246	1.93%	-212,932	Jun 30, 2026	carried, not yet filed for the newest quarter
14	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,916,987	1.85%	+224,384	Jun 30, 2026	carried, not yet filed for the newest quarter
15	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,390,429	1.34%	-4,603,852	Jun 30, 2026	carried, not yet filed for the newest quarter
15.1	BlackRock, Inc. 13G CIK 2012383 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	1,388,379	1.34%	-5,457,921	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
16	CONFLUENCE INVESTMENT MANAGEMENT LLC 13F CIK 1442056 · Registered investment adviser · Sep 30, 2026	1,231,656	1.19%	0	Sep 30, 2026
17	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,175,065	1.13%	-570,923	Jun 30, 2026	carried, not yet filed for the newest quarter
18	Cambria Investment Management, L.P. 13F CIK 1529389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,086,643	1.05%	+210,672	Jun 30, 2026	carried, not yet filed for the newest quarter
18.1	Cambria Global Real Estate ETF Fund S000058208 · Registered fund · Jul 31, 2026 Cambria ETF Trust, not summed	1,086,643	1.05%	+210,672	Jul 31, 2026	Cambria ETF Trust, not summed
19	RBF Capital, LLC 13F CIK 1134621 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	958,456	0.92%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
20	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	938,924	0.91%	+615,421	Jun 30, 2026	carried, not yet filed for the newest quarter
21	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	918,219	0.89%	-3,228	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
22	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	909,782	0.88%	-1,350,845	Jun 30, 2026	carried, not yet filed for the newest quarter
23	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	854,669	0.82%	+854,669	Jun 30, 2026	carried, not yet filed for the newest quarter
24	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	654,954	0.63%	+542,870	Jun 30, 2026	carried, not yet filed for the newest quarter
25	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	566,786	0.55%	+27,526	Jun 30, 2026	carried, not yet filed for the newest quarter
25.1	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Aug 31, 2026 GOLDMAN SACHS TRUST, not summed	193,699	0.19%	+46,414	Aug 31, 2026	GOLDMAN SACHS TRUST, not summed
25.2	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · May 31, 2026 Goldman Sachs ETF Trust, not summed	95,395	0.09%	+1,267	May 31, 2026	Goldman Sachs ETF Trust, not summed
26	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	524,705	0.51%	+524,705	Jun 30, 2026	carried, not yet filed for the newest quarter
27	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	499,496	0.48%	-21,454	Jun 30, 2026	carried, not yet filed for the newest quarter
28	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	490,602	0.47%	-32,052	Jun 30, 2026	carried, not yet filed for the newest quarter
29	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	467,809	0.45%	+74,887	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
30	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	442,807	0.43%	+412,747	Jun 30, 2026	carried, not yet filed for the newest quarter
31	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	423,310	0.41%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
31.1	DFA Global Real Estate Securities Portfolio Fund S000021884 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	336,293	0.32%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
32	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	420,203	0.41%	-1,180,280	Jun 30, 2026	carried, not yet filed for the newest quarter
33	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	399,237	0.39%	-197,871	Jun 30, 2026	carried, not yet filed for the newest quarter
33.1	Schwab U.S. Small-Cap ETF Fund S000026636 · Registered fund · May 31, 2026 SCHWAB STRATEGIC TRUST, not summed	397,646	0.38%	-6,322	May 31, 2026	SCHWAB STRATEGIC TRUST, not summed
34	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	383,899	0.37%	-43,854	Jun 30, 2026	carried, not yet filed for the newest quarter
35	WITTENBERG INVESTMENT MANAGEMENT, INC. 13F CIK 1697790 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	332,694	0.32%	+172,300	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	310,270	0.30%	+189,185	Jun 30, 2026	carried, not yet filed for the newest quarter
37	PRELUDE CAPITAL MANAGEMENT, LLC 13F CIK 1387508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	268,759	0.26%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
38	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	252,355	0.24%	+252,355	Jun 30, 2026	carried, not yet filed for the newest quarter
39	Murray Georgia Insider CIK 1318080 · May 28, 2026 Director, issuer-wide	235,983	0.23%	+80,342	May 28, 2026	Director, issuer-wide
40	XTX Topco Ltd 13F CIK 1828301 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	231,957	0.22%	+104,229	Jun 30, 2026	carried, not yet filed for the newest quarter
41	Burke John N Insider CIK 1293150 · May 28, 2026 Director, issuer-wide	227,666	0.22%	+80,342	May 28, 2026	Director, issuer-wide
42	Summit Trail Advisors, LLC 13F CIK 1698478 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	201,311	0.19%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
43	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	198,867	0.19%	-427,512	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Integrated Wealth Concepts LLC 13F CIK 1737109 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	148,891	0.14%	+26,537	Jun 30, 2026	carried, not yet filed for the newest quarter
45	FRANKLIN RESOURCES INC 13F CIK 38777 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	146,357	0.14%	-3,953	Jun 30, 2026	carried, not yet filed for the newest quarter
46	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	137,795	0.13%	-89,240	Jun 30, 2026	carried, not yet filed for the newest quarter
47	HRT FINANCIAL LP 13F CIK 1475597 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	134,769	0.13%	+134,769	Jun 30, 2026	carried, not yet filed for the newest quarter
48	Venerable US Small Cap Fund Fund S000090882 · Registered fund · Jun 30, 2026 Venerable Variable Insurance Trust, not summed	131,635	0.13%	-3,953	Jun 30, 2026	Venerable Variable Insurance Trust, not summed
49	Asset Management One Co., Ltd. 13F CIK 1068855 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	123,204	0.12%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
50	IEQ CAPITAL, LLC 13F CIK 1779789 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	114,912	0.11%	+80,987	Jun 30, 2026	carried, not yet filed for the newest quarter

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 140 holders

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Key facts CIK 1031316 CUSIP 35471R106 13F (30d) 12 filings 12 filers Visit website Investor relations