Equity Commonwealth - Common Shares of Beneficial Interest, $0.01 par value per share (EQC) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2025

Type / Class: Equity / Common Shares of Beneficial Interest, $0.01 par value per share
Symbol: EQC
Shares outstanding: 107,736,038
Price per share: $1.58
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares: 0
Total reported value: $0
Share change: -1,408
Value change: -$17,169
Number of holders: 0

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of Equity Commonwealth - Common Shares of Beneficial Interest, $0.01 par value per share (EQC) based on Schedule 13D/G filings

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
Weiss Asset Management LP	8.8%		$15,262,567		9,479,855		Weiss Asset Management LP	31 Dec 2024
Alberta Investment Management Corp	8.1%		$13,951,524		8,665,543		Alberta Investment Management Corp	13 Dec 2024
Indaba Capital Management, L.P.	7.8%	-12%	$13,529,492	-$1,846,008	8,403,411	-12%	Indaba Capital Management, L.P.	31 Mar 2025
BlackRock, Inc.	5.2%		$8,954,686		5,561,917		BlackRock, Inc.	31 Dec 2024
VANGUARD GROUP INC	4.6%	-29%	$7,883,194	-$3,481,084	4,896,394	-31%	The Vanguard Group	31 Mar 2025

As of 30 Sep 2025, 0 institutional investors reported holding 0 shares of Equity Commonwealth - Common Shares of Beneficial Interest, $0.01 par value per share (EQC). This represents 0% of the company’s total 107,736,038 outstanding shares.

Institutional Holders of Equity Commonwealth - Common Shares of Beneficial Interest, $0.01 par value per share (EQC) across Reporting Periods

Period	Reported Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price (Median)	Investors
2025 Q3	0	$0	-$17,169			$1.58	0
2025 Q2	1,408	$17,169	-$154,431,140		$0	$14.35	2
2025 Q1	95,919,740	$154,430,303	-$8,302,217	$0	$206,080	$1.61	142
2024 Q4	100,493,417	$177,872,977	-$472,472,818	$531	$277,359	$1.77	166
2024 Q3	101,689,026	$2,023,582,703	+$20,230,035	$1,472,600	$3,015,624	$19.90	256
2024 Q2	100,515,081	$1,949,945,026	-$17,861,762	$1,495,740	$754,660	$19.40	256
2024 Q1	101,280,169	$1,912,357,216	-$16,007,206	$1,317,824	$141,600	$18.88	262
2023 Q4	123,714	$2,375,308	+$245,500			$19.20	2
2023 Q3	99,472,006	$1,827,514,938	-$71,427,598	$238,810	$624,580	$18.37	254
2023 Q2	104,196,749	$2,111,482,074	-$48,370,485	$216,782	$443,694	$20.26	249
2023 Q1	105,964,109	$2,194,499,539	+$7,543,121	$610,945	$509,466	$20.71	245
2022 Q4	104,658,141	$2,613,749,883	-$44,300,413	$1,158,608	$27,467	$24.97	251
2022 Q3	106,067,049	$2,589,231,792	-$10,023,856	$1,098,000	$0	$24.36	225
2022 Q2	107,262,392	$2,952,965,340	-$90,567,946	$0	$212,000	$27.53	227
2022 Q1	110,637,204	$3,120,400,835	+$84,820,653	$401,000	$581,000	$28.21	235
2021 Q4	106,586,718	$2,760,831,981	-$167,535,032	$1,187,000	$280,000	$25.90	237
2021 Q3	114,633,356	$2,978,238,385	-$106,372,380	$1,122,000	$497,000	$25.98	244
2021 Q2	119,704,219	$3,136,365,580	+$110,320,048	$278,000	$352,000	$26.20	261
2021 Q1	115,094,727	$3,199,836,677	+$37,954,250	$656,000	$322,000	$27.80	267
2020 Q4	114,437,000	$3,119,817,483	+$20,834,548	$1,201,000	$366,000	$27.28	250
2020 Q3	112,879,056	$3,018,495,780	-$30,695,714	$2,521,019	$3,880,001	$26.63	257
2020 Q2	112,762,039	$3,624,502,744	-$19,522,631	$3,745,000	$3,896,000	$32.20	264
2020 Q1	115,789,164	$3,672,093,216	-$87,122,610	$3,676,000	$2,711,000	$31.71	244
2019 Q4	118,311,230	$3,877,634,794	+$23,048,679	$240,000	$1,215,000	$32.83	248
2019 Q3	117,946,494	$4,033,365,726	-$43,966,531	$0	$1,587,000	$34.25	259
2019 Q2	119,146,168	$3,868,261,634	+$69,652,393	$3,431,000	$686,000	$32.52	252
2019 Q1	119,317,805	$3,895,821,533	+$27,661,527	$8,885,000	$5,864,000	$32.69	254
2018 Q4	117,835,268	$3,534,616,162	-$44,569,655	$2,797,000	$999,000	$30.01	233
2018 Q3	119,454,099	$3,831,992,732	+$10,896,756	$4,332,000	$11,559,000	$32.09	232
2018 Q2	118,151,127	$3,721,582,618	-$209,307	$5,536,000	$12,134,000	$31.50	238
2018 Q1	119,400,664	$3,661,938,895	-$48,438,411	$4,891,000	$7,060,000	$30.67	226
2017 Q4	120,856,225	$3,687,505,393	+$43,779,641	$3,326,000	$446,000	$30.51	239
2017 Q3	119,377,996	$3,628,861,713	+$44,518,682	$3,314,000	$532,000	$30.40	237
2017 Q2	118,054,842	$3,730,543,053	+$154,946,728	$1,978,000	$746,000	$31.60	234
2017 Q1	117,631,502	$3,672,707,084	+$261,539,141	$412,000	$0	$31.22	247
2016 Q4	116,297,164	$3,516,205,290	-$109,473,021	$1,558,000	$9,656,000	$30.24	275
2016 Q3	116,096,107	$3,506,936,889	+$94,940,020	$1,748,000	$10,191,000	$30.22	268
2016 Q2	117,000,885	$3,408,128,140	+$3,166,460	$2,555,000	$5,261,000	$29.13	264
2016 Q1	117,017,134	$3,301,626,807	+$54,519,209	$2,470,000	$8,633,000	$28.22	247
2015 Q4	112,385,983	$3,116,608,503	+$67,256,143	$3,638,000	$7,975,000	$27.73	236
2015 Q3	109,718,926	$2,988,399,603	-$94,043,522	$731,000	$3,692,000	$27.24	219
2015 Q2	112,836,952	$2,895,611,968	+$77,381,947	$539,000	$1,166,000	$25.67	216
2015 Q1	119,785,452	$3,178,979,621	+$118,225,205	$722,000	$1,155,000	$26.55	210
2014 Q4	109,257,624	$2,805,090,385	-$46,019,541	$716,000	$9,472,000	$25.67	215
2014 Q3	109,276,145	$2,807,623,302	+$2,787,279,201	$1,566,000	$22,595,000	$25.71	194
2014 Q2	754,380	$19,854,000	+$19,410,490			$26.32	7
2014 Q1	16,856	$443,000	$0			$26.28	1