CMPR US Equity

CIMPRESS plc

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Communication Services · Commercial Printing · CIK 1262976 · FYE 0630

$97.62

-2.50 (-2.50%)

USD · as of 2026-07-29 · marketstack

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Institutional ownership· 13F filers holding CMPR · 2026-Q1 methodology → sources →

181 holders

% of shares outstanding held

88.3%

Shares held (13F)

21,407,971

Reporting holders

181

Top holders

largest 100 of 181 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	JANUS HENDERSON GROUP PLC	3,713,1873.7M	$271M	15.32%	ADD 3%
2	Prescott General Partners LLC	3,612,5603.6M	$264M	14.91%	—
3	Rubric Capital Management LP	1,629,4191.6M	$119M	6.72%	ADD 7%
4	BlackRock, Inc.	1,319,8221.3M	$96M	5.45%	—
5	SPRUCE HOUSE INVESTMENT MANAGEMENT LLC	1,222,6331.2M	$89M	5.05%	TRIM -17%
6	VANGUARD PORTFOLIO MANAGEMENT LLC	847,092847,092	$62M	3.50%	NEW†
7	VANGUARD CAPITAL MANAGEMENT LLC	745,007745,007	$54M	3.07%	NEW†
8	DIAMOND HILL CAPITAL MANAGEMENT INC	726,366726,366	$53M	3.00%	—
9	ArrowMark Colorado Holdings LLC	672,595672,595	$49M	2.78%	TRIM -24%
10	ACADIAN ASSET MANAGEMENT LLC	551,671551,671	$40M	2.28%	ADD 17%
11	CHECK CAPITAL MANAGEMENT INC/CA	471,466471,466	$34M	1.95%	ADD 16%
12	DIMENSIONAL FUND ADVISORS LP	446,936446,936	$33M	1.84%	ADD 4%
13	GEODE CAPITAL MANAGEMENT, LLC	408,304408,304	$30M	1.68%	—
14	STATE STREET CORP	379,787379,787	$28M	1.57%	ADD 6%
15	MORGAN STANLEY	375,907375,907	$27M	1.55%	TRIM -7%
16	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	329,805329,805	$24M	1.36%	ADD 20%
17	AQR CAPITAL MANAGEMENT LLC	319,369319,369	$23M	1.32%	TRIM -4%
18	BANK OF AMERICA CORP /DE/	222,907222,907	$16M	0.92%	ADD 3%
19	GOLDMAN SACHS GROUP INC	220,117220,117	$16M	0.91%	TRIM -6%
20	HANTZ FINANCIAL SERVICES, INC.	215,080215,080	$16M	0.89%	TRIM -9%
21	FMR LLC	190,492190,492	$14M	0.79%	ADD 24%
22	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	178,786178,786	$13M	0.74%	ADD 7%
23	NORTHERN TRUST CORP	151,702151,702	$11M	0.63%	ADD 2%
24	SMITH THOMAS W	129,400129,400	$9M	0.53%	—
25	Nuveen, LLC	122,744122,744	$9M	0.51%	TRIM -21%
26	FIRST TRUST ADVISORS LP	113,816113,816	$8M	0.47%	ADD 13%
27	Connor, Clark & Lunn Investment Management Ltd.	109,346109,346	$8M	0.45%	TRIM -17%
28	VANGUARD FIDUCIARY TRUST CO	99,45099,450	$7M	0.41%	NEW
29	INGALLS & SNYDER LLC	84,11984,119	$6M	0.35%	—
30	UBS Group AG	78,59678,596	$6M	0.32%	TRIM -11%
31	Sequoia Financial Advisors, LLC	76,57976,579	$6M	0.32%	ADD 5%
32	BARCLAYS PLC	72,30072,300	$5M	0.30%	TRIM -24%
33	SEI INVESTMENTS CO	66,43166,431	$5M	0.27%	ADD 8%
34	JANE STREET GROUP, LLC	65,35865,358	$5M	0.27%	TRIM -41%
35	STIFEL FINANCIAL CORP	55,56755,567	$4M	0.23%	TRIM -5%
36	Bank of New York Mellon Corp	54,02554,025	$4M	0.22%	TRIM -8%
37	Pallas Capital Advisors LLC	53,35253,352	$4M	0.22%	ADD 38%
38	IEQ CAPITAL, LLC	52,12252,122	$4M	0.22%	TRIM -10%
39	Susquehanna Portfolio Strategies, LLC	50,98850,988	$4M	0.21%	—
40	Man Group plc	49,33349,333	$4M	0.20%	ADD 24%
41	Invesco Ltd.	40,04640,046	$3M	0.17%	TRIM -48%
42	JPMORGAN CHASE & CO	38,50838,508	$3M	0.16%	—
43	WEDGE CAPITAL MANAGEMENT L L P/NC	36,00636,006	$3M	0.15%	ADD 22%
44	ENVESTNET ASSET MANAGEMENT INC	33,33433,334	$2M	0.14%	ADD 89%
45	WOLVERINE ASSET MANAGEMENT LLC	32,73032,730	$2M	0.14%	—
46	Swiss National Bank	31,80031,800	$2M	0.13%	—
47	CITADEL ADVISORS LLC	26,00226,002	$2M	0.11%	ADD 47%
48	FRANKLIN RESOURCES INC	25,62425,624	$2M	0.11%	ADD 5%
49	PRINCIPAL FINANCIAL GROUP INC	25,56725,567	$2M	0.11%	TRIM -20%
50	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	25,32225,322	$2M	0.10%	ADD 4%
51	CWM, LLC	21,02921,029	$2M	0.09%	—
52	HUSSMAN STRATEGIC ADVISORS, INC.	21,00021,000	$2M	0.09%	NEW
53	RHUMBLINE ADVISERS	20,92420,924	$2M	0.09%	—
54	PRICE T ROWE ASSOCIATES INC /MD/	20,72420,724	$2M	0.09%	ADD 19%
55	SUSQUEHANNA INTERNATIONAL GROUP, LLP	20,69320,693	$2M	0.09%	TRIM -26%
56	LAZARD ASSET MANAGEMENT LLC	20,09220,092	$1M	0.08%	TRIM -7%
57	Vanguard Global Advisers, LLC	19,05519,055	$1M	0.08%	NEW
58	Auxano Advisors, LLC	18,97818,978	$1M	0.08%	—
59	ALLIANCEBERNSTEIN L.P.	19,75819,758	$1M	0.08%	—
60	Cerity Partners LLC	17,97517,975	$1M	0.07%	TRIM -3%
61	D. E. Shaw & Co., Inc.	17,39717,397	$1M	0.07%	TRIM -12%
62	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	17,04917,049	$1M	0.07%	ADD 18%
63	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	16,54116,541	$1M	0.07%	ADD 33%
64	Wakefield Asset Management LLLP	16,46316,463	$1M	0.07%	ADD 3%
65	SG Americas Securities, LLC	16,42816,428	$1M	0.07%	TRIM -61%
66	Russell Investments Group, Ltd.	16,22716,227	$1M	0.07%	ADD 61%
67	DEUTSCHE BANK AG\	15,79715,797	$1M	0.07%	ADD 13%
68	VANGUARD ASSET MANAGEMENT, Ltd	15,08215,082	$1M	0.06%	NEW
69	DARK FOREST CAPITAL MANAGEMENT LP	14,97314,973	$1M	0.06%	ADD 61%
70	TUDOR INVESTMENT CORP ET AL	14,96714,967	$1M	0.06%	NEW
71	XTX Topco Ltd	14,89114,891	$1M	0.06%	ADD 55%
72	Amundi	14,88614,886	$1M	0.06%	TRIM -59%
73	Creative Planning	14,68714,687	$1M	0.06%	TRIM -3%
74	Allspring Global Investments Holdings, LLC	13,59713,597	$1M	0.06%	ADD 12%
75	Legal & General Group Plc	13,64113,641	$995,793	0.06%	TRIM -17%
76	Legacy Advisors, LLC	11,88811,888	$867,824	0.05%	—
77	Clearline Capital LP	11,81611,816	$862,568	0.05%	—
78	FORMULA GROWTH LTD	11,30011,300	$824,900	0.05%	—
79	GSA CAPITAL PARTNERS LLP	11,16911,169	$815,000	0.05%	—
80	Herold Advisors, Inc.	10,90010,900	$795,700	0.04%	—
81	Brooklyn Investment Group	10,78110,781	$787,013	0.04%	TRIM -8%
82	MARSHALL WACE, LLP	10,55610,556	$770,588	0.04%	NEW
83	LPL Financial LLC	10,48710,487	$765,551	0.04%	—
84	BNP PARIBAS FINANCIAL MARKETS	10,29810,298	$751,754	0.04%	TRIM -15%
85	ALGERT GLOBAL LLC	10,02010,020	$731,000	0.04%	NEW
86	VOYA INVESTMENT MANAGEMENT LLC	9,9289,928	$724,744	0.04%	ADD 16%
87	Institute for Wealth Management, LLC.	9,6979,697	$707,881	0.04%	—
88	Mariner, LLC	9,6459,645	$704,074	0.04%	TRIM -19%
89	MetLife Investment Management, LLC	9,5409,540	$696,420	0.04%	—
90	MACKENZIE FINANCIAL CORP	9,0099,009	$657,657	0.04%	TRIM -20%
91	MANUFACTURERS LIFE INSURANCE COMPANY, THE	8,7168,716	$636,268	0.04%	TRIM -2%
92	Squarepoint Ops LLC	8,4918,491	$619,843	0.04%	NEW
93	AMERICAN CENTURY COMPANIES INC	8,2078,207	$599,111	0.03%	ADD 21%
94	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	7,9957,995	$583,635	0.03%	—
95	State of Wyoming	7,4737,473	$545,529	0.03%	ADD 111%
96	TEACHER RETIREMENT SYSTEM OF TEXAS	7,4337,433	$542,609	0.03%	TRIM -62%
97	WELLS FARGO & COMPANY/MN	7,3077,307	$533,411	0.03%	TRIM -73%
98	Quantinno Capital Management LP	7,1627,162	$522,826	0.03%	ADD 3%
99	Handelsbanken Fonder AB	6,6966,696	$489,000	0.03%	—
100	HSBC HOLDINGS PLC	6,6436,643	$485,939	0.03%	TRIM -5%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

JANUS HENDERSON GROUP PLC

3.0M

3.3M

3.6M

3.7M

$271M

Prescott General Partners LLC

3.6M

$264M

Rubric Capital Management LP

—

561K

1.2M

1.5M

1.6M

$119M

BlackRock, Inc.

1.4M

1.2M

1.3M

$96M

SPRUCE HOUSE INVESTMENT MANAGEMENT LLC

2.1M

1.5M

1.2M

$89M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

847K

$62M

VANGUARD CAPITAL MANAGEMENT LLC

—

745K

$54M

DIAMOND HILL CAPITAL MANAGEMENT INC

592K

922K

938K

807K

741K

726K

$53M

ArrowMark Colorado Holdings LLC

884K

843K

754K

1.3M

883K

673K

$49M

ACADIAN ASSET MANAGEMENT LLC

506K

423K

332K

331K

473K

552K

$40M

CHECK CAPITAL MANAGEMENT INC/CA

349K

362K

368K

384K

407K

471K

$34M

DIMENSIONAL FUND ADVISORS LP

513K

485K

438K

431K

429K

447K

$33M

GEODE CAPITAL MANAGEMENT, LLC

392K

394K

385K

379K

405K

408K

$30M

STATE STREET CORP

403K

380K

363K

353K

357K

380K

$28M

MORGAN STANLEY

201K

305K

285K

455K

405K

376K

$27M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	181	21,407,971	88.3%	$1.6B
2025-Q4	179	21,668,871	89.4%	$1.4B
2025-Q3	170	21,797,779	90.0%	$1.4B
2025-Q2	157	20,716,212	85.5%

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · CMPR

Activists — 13D, active intent

SPRUCE HOUSE INVESTMENT MANAGEMENT LLC5.12%▼ -0.99ppSCHEDULE 13D/A · Amd 3 · event 2026-05-01SEC →

1,240,506 shares · 5 reporting persons

Large holders — 13G, passive (top 5 by % of class)

Holder	% of class	Type	As of
JANUS HENDERSON GROUP PLC	14.7%	QII	2025-12-31	SEC →
Rubric Capital Management LP	6.18%	QII	2025-12-31	SEC →
BlackRock, Inc.	5.1%	QII	2025-12-31	SEC →

Institutional ownership· 13F filers holding CMPR · 2026-Q1 methodology → sources →

181 holders

% of shares outstanding held

88.3%

Shares held (13F)

21,407,971

Reporting holders

181

Top holders

largest 100 of 181 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	JANUS HENDERSON GROUP PLC	3,713,1873.7M	$271M	15.32%	ADD 3%
2	Prescott General Partners LLC	3,612,5603.6M	$264M	14.91%	—
3	Rubric Capital Management LP	1,629,4191.6M	$119M	6.72%	ADD 7%
4	BlackRock, Inc.	1,319,8221.3M	$96M	5.45%	—
5	SPRUCE HOUSE INVESTMENT MANAGEMENT LLC	1,222,6331.2M	$89M	5.05%	TRIM -17%
6	VANGUARD PORTFOLIO MANAGEMENT LLC	847,092847,092	$62M	3.50%	NEW†
7	VANGUARD CAPITAL MANAGEMENT LLC	745,007745,007	$54M	3.07%	NEW†
8	DIAMOND HILL CAPITAL MANAGEMENT INC	726,366726,366	$53M	3.00%	—
9	ArrowMark Colorado Holdings LLC	672,595672,595	$49M	2.78%	TRIM -24%
10	ACADIAN ASSET MANAGEMENT LLC	551,671551,671	$40M	2.28%	ADD 17%
11	CHECK CAPITAL MANAGEMENT INC/CA	471,466471,466	$34M	1.95%	ADD 16%
12	DIMENSIONAL FUND ADVISORS LP	446,936446,936	$33M	1.84%	ADD 4%
13	GEODE CAPITAL MANAGEMENT, LLC	408,304408,304	$30M	1.68%	—
14	STATE STREET CORP	379,787379,787	$28M	1.57%	ADD 6%
15	MORGAN STANLEY	375,907375,907	$27M	1.55%	TRIM -7%
16	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	329,805329,805	$24M	1.36%	ADD 20%
17	AQR CAPITAL MANAGEMENT LLC	319,369319,369	$23M	1.32%	TRIM -4%
18	BANK OF AMERICA CORP /DE/	222,907222,907	$16M	0.92%	ADD 3%
19	GOLDMAN SACHS GROUP INC	220,117220,117	$16M	0.91%	TRIM -6%
20	HANTZ FINANCIAL SERVICES, INC.	215,080215,080	$16M	0.89%	TRIM -9%
21	FMR LLC	190,492190,492	$14M	0.79%	ADD 24%
22	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	178,786178,786	$13M	0.74%	ADD 7%
23	NORTHERN TRUST CORP	151,702151,702	$11M	0.63%	ADD 2%
24	SMITH THOMAS W	129,400129,400	$9M	0.53%	—
25	Nuveen, LLC	122,744122,744	$9M	0.51%	TRIM -21%
26	FIRST TRUST ADVISORS LP	113,816113,816	$8M	0.47%	ADD 13%
27	Connor, Clark & Lunn Investment Management Ltd.	109,346109,346	$8M	0.45%	TRIM -17%
28	VANGUARD FIDUCIARY TRUST CO	99,45099,450	$7M	0.41%	NEW
29	INGALLS & SNYDER LLC	84,11984,119	$6M	0.35%	—
30	UBS Group AG	78,59678,596	$6M	0.32%	TRIM -11%
31	Sequoia Financial Advisors, LLC	76,57976,579	$6M	0.32%	ADD 5%
32	BARCLAYS PLC	72,30072,300	$5M	0.30%	TRIM -24%
33	SEI INVESTMENTS CO	66,43166,431	$5M	0.27%	ADD 8%
34	JANE STREET GROUP, LLC	65,35865,358	$5M	0.27%	TRIM -41%
35	STIFEL FINANCIAL CORP	55,56755,567	$4M	0.23%	TRIM -5%
36	Bank of New York Mellon Corp	54,02554,025	$4M	0.22%	TRIM -8%
37	Pallas Capital Advisors LLC	53,35253,352	$4M	0.22%	ADD 38%
38	IEQ CAPITAL, LLC	52,12252,122	$4M	0.22%	TRIM -10%
39	Susquehanna Portfolio Strategies, LLC	50,98850,988	$4M	0.21%	—
40	Man Group plc	49,33349,333	$4M	0.20%	ADD 24%
41	Invesco Ltd.	40,04640,046	$3M	0.17%	TRIM -48%
42	JPMORGAN CHASE & CO	38,50838,508	$3M	0.16%	—
43	WEDGE CAPITAL MANAGEMENT L L P/NC	36,00636,006	$3M	0.15%	ADD 22%
44	ENVESTNET ASSET MANAGEMENT INC	33,33433,334	$2M	0.14%	ADD 89%
45	WOLVERINE ASSET MANAGEMENT LLC	32,73032,730	$2M	0.14%	—
46	Swiss National Bank	31,80031,800	$2M	0.13%	—
47	CITADEL ADVISORS LLC	26,00226,002	$2M	0.11%	ADD 47%
48	FRANKLIN RESOURCES INC	25,62425,624	$2M	0.11%	ADD 5%
49	PRINCIPAL FINANCIAL GROUP INC	25,56725,567	$2M	0.11%	TRIM -20%
50	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	25,32225,322	$2M	0.10%	ADD 4%
51	CWM, LLC	21,02921,029	$2M	0.09%	—
52	HUSSMAN STRATEGIC ADVISORS, INC.	21,00021,000	$2M	0.09%	NEW
53	RHUMBLINE ADVISERS	20,92420,924	$2M	0.09%	—
54	PRICE T ROWE ASSOCIATES INC /MD/	20,72420,724	$2M	0.09%	ADD 19%
55	SUSQUEHANNA INTERNATIONAL GROUP, LLP	20,69320,693	$2M	0.09%	TRIM -26%
56	LAZARD ASSET MANAGEMENT LLC	20,09220,092	$1M	0.08%	TRIM -7%
57	Vanguard Global Advisers, LLC	19,05519,055	$1M	0.08%	NEW
58	Auxano Advisors, LLC	18,97818,978	$1M	0.08%	—
59	ALLIANCEBERNSTEIN L.P.	19,75819,758	$1M	0.08%	—
60	Cerity Partners LLC	17,97517,975	$1M	0.07%	TRIM -3%
61	D. E. Shaw & Co., Inc.	17,39717,397	$1M	0.07%	TRIM -12%
62	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	17,04917,049	$1M	0.07%	ADD 18%
63	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	16,54116,541	$1M	0.07%	ADD 33%
64	Wakefield Asset Management LLLP	16,46316,463	$1M	0.07%	ADD 3%
65	SG Americas Securities, LLC	16,42816,428	$1M	0.07%	TRIM -61%
66	Russell Investments Group, Ltd.	16,22716,227	$1M	0.07%	ADD 61%
67	DEUTSCHE BANK AG\	15,79715,797	$1M	0.07%	ADD 13%
68	VANGUARD ASSET MANAGEMENT, Ltd	15,08215,082	$1M	0.06%	NEW
69	DARK FOREST CAPITAL MANAGEMENT LP	14,97314,973	$1M	0.06%	ADD 61%
70	TUDOR INVESTMENT CORP ET AL	14,96714,967	$1M	0.06%	NEW
71	XTX Topco Ltd	14,89114,891	$1M	0.06%	ADD 55%
72	Amundi	14,88614,886	$1M	0.06%	TRIM -59%
73	Creative Planning	14,68714,687	$1M	0.06%	TRIM -3%
74	Allspring Global Investments Holdings, LLC	13,59713,597	$1M	0.06%	ADD 12%
75	Legal & General Group Plc	13,64113,641	$995,793	0.06%	TRIM -17%
76	Legacy Advisors, LLC	11,88811,888	$867,824	0.05%	—
77	Clearline Capital LP	11,81611,816	$862,568	0.05%	—
78	FORMULA GROWTH LTD	11,30011,300	$824,900	0.05%	—
79	GSA CAPITAL PARTNERS LLP	11,16911,169	$815,000	0.05%	—
80	Herold Advisors, Inc.	10,90010,900	$795,700	0.04%	—
81	Brooklyn Investment Group	10,78110,781	$787,013	0.04%	TRIM -8%
82	MARSHALL WACE, LLP	10,55610,556	$770,588	0.04%	NEW
83	LPL Financial LLC	10,48710,487	$765,551	0.04%	—
84	BNP PARIBAS FINANCIAL MARKETS	10,29810,298	$751,754	0.04%	TRIM -15%
85	ALGERT GLOBAL LLC	10,02010,020	$731,000	0.04%	NEW
86	VOYA INVESTMENT MANAGEMENT LLC	9,9289,928	$724,744	0.04%	ADD 16%
87	Institute for Wealth Management, LLC.	9,6979,697	$707,881	0.04%	—
88	Mariner, LLC	9,6459,645	$704,074	0.04%	TRIM -19%
89	MetLife Investment Management, LLC	9,5409,540	$696,420	0.04%	—
90	MACKENZIE FINANCIAL CORP	9,0099,009	$657,657	0.04%	TRIM -20%
91	MANUFACTURERS LIFE INSURANCE COMPANY, THE	8,7168,716	$636,268	0.04%	TRIM -2%
92	Squarepoint Ops LLC	8,4918,491	$619,843	0.04%	NEW
93	AMERICAN CENTURY COMPANIES INC	8,2078,207	$599,111	0.03%	ADD 21%
94	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	7,9957,995	$583,635	0.03%	—
95	State of Wyoming	7,4737,473	$545,529	0.03%	ADD 111%
96	TEACHER RETIREMENT SYSTEM OF TEXAS	7,4337,433	$542,609	0.03%	TRIM -62%
97	WELLS FARGO & COMPANY/MN	7,3077,307	$533,411	0.03%	TRIM -73%
98	Quantinno Capital Management LP	7,1627,162	$522,826	0.03%	ADD 3%
99	Handelsbanken Fonder AB	6,6966,696	$489,000	0.03%	—
100	HSBC HOLDINGS PLC	6,6436,643	$485,939	0.03%	TRIM -5%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

JANUS HENDERSON GROUP PLC

3.0M

3.3M

3.6M

3.7M

$271M

Prescott General Partners LLC

3.6M

$264M

Rubric Capital Management LP

—

561K

1.2M

1.5M

1.6M

$119M

BlackRock, Inc.

1.4M

1.2M

1.3M

$96M

SPRUCE HOUSE INVESTMENT MANAGEMENT LLC

2.1M

1.5M

1.2M

$89M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

847K

$62M

VANGUARD CAPITAL MANAGEMENT LLC

—

745K

$54M

DIAMOND HILL CAPITAL MANAGEMENT INC

592K

922K

938K

807K

741K

726K

$53M

ArrowMark Colorado Holdings LLC

884K

843K

754K

1.3M

883K

673K

$49M

ACADIAN ASSET MANAGEMENT LLC

506K

423K

332K

331K

473K

552K

$40M

CHECK CAPITAL MANAGEMENT INC/CA

349K

362K

368K

384K

407K

471K

$34M

DIMENSIONAL FUND ADVISORS LP

513K

485K

438K

431K

429K

447K

$33M

GEODE CAPITAL MANAGEMENT, LLC

392K

394K

385K

379K

405K

408K

$30M

STATE STREET CORP

403K

380K

363K

353K

357K

380K

$28M

MORGAN STANLEY

201K

305K

285K

455K

405K

376K

$27M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	181	21,407,971	88.3%	$1.6B
2025-Q4	179	21,668,871	89.4%	$1.4B
2025-Q3	170	21,797,779	90.0%	$1.4B
2025-Q2	157	20,716,212	85.5%

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · CMPR

Activists — 13D, active intent

SPRUCE HOUSE INVESTMENT MANAGEMENT LLC5.12%▼ -0.99ppSCHEDULE 13D/A · Amd 3 · event 2026-05-01SEC →

1,240,506 shares · 5 reporting persons

Large holders — 13G, passive (top 5 by % of class)

Holder	% of class	Type	As of
JANUS HENDERSON GROUP PLC	14.7%	QII	2025-12-31	SEC →
Rubric Capital Management LP	6.18%	QII	2025-12-31	SEC →
BlackRock, Inc.	5.1%	QII	2025-12-31	SEC →

CMPR US Equity☆

Institutional ownership· 13F filers holding CMPR · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · CMPR

Institutional ownership· 13F filers holding CMPR · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · CMPR

CMPR US Equity