Comparable stake leader
JANUS HENDERSON GROUP PLC
SEC ownership of CIMPRESS plc
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001262976.
Disclosed value leader
Prescott General Partners LLC
Comparable rows
50/50
Latest evidence
01 May 2026
- Public ticker
- CMPR on Nasdaq
- Parsed ownership sources
- 13D/G, 13F, and 3/4/5
- Largest SEC-reported holder
- JANUS HENDERSON GROUP PLC
- Latest 13D/G holder
- JANUS HENDERSON GROUP PLC
- Latest parsed ownership date
- 01 May 2026
- Issuer CIK
- 0001262976
- Issuer location
- Dundalk, County Louth, Ireland
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of CIMPRESS plc (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
JANUS HENDERSON GROUP PLC
Disclosed value leader
Prescott General Partners...
Comparable rows
50/50
Latest evidence
01 May 2026
13D/G
13F
3/4/5
Lead comparable stake: 15%
13D/G row: JANUS HENDERSON GROUP PLC
Showing 1-8 of 50 holder rows.
Quick read
JANUS HENDERSON GROUP PLC leads the comparable SEC ownership view at 15%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens JANUS HENDERSON GROUP PLC's linked filing trail.
Comparable ownership
Top 5
JANUS HENDERSON GROUP PLC
15%
Rubric Capital Management LP
6.2%
SPRUCE HOUSE INVESTMENT MANAGEMEN...
5.1%
BlackRock, Inc.
5.1%
ArrowMark Colorado Holdings LLC
3.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| JANUS HENDERSON GROUP PLC |
13D/G
13F
Company
|
15%
|
$284,891,086
3,620,423 shares
|
+$21,424,139 | 31 Dec 2025 |
| Rubric Capital Management LP |
13D/G
13F
Company
|
6.2%
|
$120,002,250
1,525,000 shares
|
$0 | 31 Dec 2025 |
| SPRUCE HOUSE INVESTMENT MANAGEMENT LLC |
13D/G
13F
ZACHARY STERNBERG · Company
|
5.1%
|
$97,119,215
1,240,506 shares
|
-$19,003,567 | 01 May 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
5.1%
from 13D/G
|
$96,347,006
1,319,822 shares
|
— | 31 Mar 2026 |
| ArrowMark Colorado Holdings LLC |
13D/G
13F
Company
|
3.6%
|
$69,480,909
882,970 shares
|
-$29,514,258 | 31 Dec 2025 |
| Prescott General Partners LLC |
3/4/5
13F
Member of Section 13(d) Group, 10%+ Owner · Company
|
15%
from 13F
|
$427,724,866
5,407,394 shares
|
— | 07 Nov 2024 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
3.5%
|
$61,837,716
847,092 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
3.1%
|
$54,385,511
745,007 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$6,024,890.
Buys
$251,175
Insiders: 1
Sells
$6,276,065
Insiders: 2
Net
-$6,024,890
Shares: -66,070
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 4,000
Shares: 70,070
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 47,240 | $0 | $4,715,459 | -$4,715,459 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 4,000 | 22,830 | $251,175 | $1,560,606 | -$1,309,431 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-11 of 11 reporting-owner rows connected to CIMPRESS plc. Open a relationship link for the CIK-to-CIK filing trail.
Rows
11
Largest Forms 3/4/5 holder
Prescott General Partners LLC
Net 12M change
-$6,024,891
Latest report
27 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Prescott General Partners LLC | Member of Section 13(d) Group, 10%+ Owner | $427,724,866 | Mixed | 07 Nov 2024 | ||
| Scott J. Vassalluzzo | Director, Member of Section 13(d) Group, 10%+ Owner | $244,296,367 | Mixed | 17 Dec 2025 | ||
| Zachary Sternberg | Director | $167,139,013 | Mixed | 15 Nov 2024 | ||
| Robert S. Keane | CEO, Chairman, Director | $147,456,569 | Median | 15 May 2026 | ||
| Thomas W. Smith | Member of Section 13(d) Group, 10%+ Owner | $128,126,729 | Mixed | 31 Dec 2022 | ||
| Florian Baumgartner | EVP and CEO, Vista | $5,267,388 | Median | 15 May 2026 | ||
| Sean E. Quinn | EVP, Chief Financial Officer | $3,015,814 | -$2,674,735 | -47% | Filing P/S | 27 May 2026 |
| Maarten Wensveen | EVP & Chief Technology Officer | $1,697,396 | -$3,350,156 | -66% | Median | 15 May 2026 |
| Dessislava Temperley | Director | $285,338 | Mixed | 17 Dec 2025 | ||
| Sophie Gasperment | Director | $268,024 | Mixed | 17 Dec 2025 | ||
| Wayne Hsing-Yuan Ting | Director | $22,046 | Median | 15 May 2026 |
Recent insider transactions for CIMPRESS plc
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Sean E. Quinn | CMPR | Ordinary Shares | Sale | -14.8% | $522,038 | $104.22 | -5,009 | 28,937 | 28 May 2026 | Direct |
| Sean E. Quinn | CMPR | Ordinary Shares | Options Exercise | 17.3% | 5,009 | 33,946 | 28 May 2026 | Direct | ||
| Sean E. Quinn | CMPR | Option (right to buy) | Options Exercise | -6.75% | -5,009 | 69,189 | 28 May 2026 | Direct | ||
| Sean E. Quinn | CMPR | Ordinary Shares | Sale | -44.3% | $2,403,871 | $104.61 | -22,980 | 28,937 | 27 May 2026 | Direct |
| Florian Baumgartner | CMPR | Ordinary Shares | Tax liability | -4.13% | -3,108 | 72,156 | 15 May 2026 | Direct | ||
| Florian Baumgartner | CMPR | Ordinary Shares | Options Exercise | 9.52% | 6,544 | 75,264 | 15 May 2026 | Direct | ||
| Florian Baumgartner | CMPR | Performance Share Units | Options Exercise | -29.3% | -4,853 | 11,727 | 15 May 2026 | Direct | ||
| Florian Baumgartner | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -50% | -1,691 | 1,691 | 15 May 2026 | Direct | ||
| Sean E. Quinn | CMPR | Ordinary Shares | Tax liability | -6.25% | -3,463 | 51,917 | 15 May 2026 | Direct | ||
| Sean E. Quinn | CMPR | Ordinary Shares | Options Exercise | 18.2% | 8,521 | 55,380 | 15 May 2026 | Direct | ||
| Sean E. Quinn | CMPR | Performance Share Units | Options Exercise | -29.5% | -6,221 | 14,854 | 15 May 2026 | Direct | ||
| Sean E. Quinn | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -50% | -2,300 | 2,299 | 15 May 2026 | Direct | ||
| Maarten Wensveen | CMPR | Ordinary Shares | Tax liability | -12.4% | -3,282 | 23,252 | 15 May 2026 | Direct | ||
| Maarten Wensveen | CMPR | Ordinary Shares | Options Exercise | 34.9% | 6,860 | 26,534 | 15 May 2026 | Direct | ||
| Maarten Wensveen | CMPR | Performance Share Units | Options Exercise | -29.9% | -5,000 | 11,727 | 15 May 2026 | Direct | ||
| Maarten Wensveen | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -50% | -1,860 | 1,860 | 15 May 2026 | Direct | ||
| Wayne Hsing-Yuan Ting | CMPR | Ordinary Shares | Tax liability | -48.1% | -280 | 302 | 15 May 2026 | Direct | ||
| Wayne Hsing-Yuan Ting | CMPR | Ordinary Shares | Options Exercise | 582 | 582 | 15 May 2026 | Direct | |||
| Wayne Hsing-Yuan Ting | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -25% | -582 | 1,743 | 15 May 2026 | Direct | ||
| Robert S. Keane | CMPR | Ordinary Shares | Tax liability | -5.19% | -4,522 | 82,677 | 15 May 2026 | Direct | ||
| Robert S. Keane | CMPR | Ordinary Shares | Options Exercise | 17.7% | 13,112 | 87,199 | 15 May 2026 | Direct | ||
| Robert S. Keane | CMPR | Performance Share Unit | Options Exercise | -16.6% | -145 | 727 | 15 May 2026 | Direct | ||
| Robert S. Keane | CMPR | Performance Share Units | Options Exercise | -29.8% | -12,967 | 30,489 | 15 May 2026 | Direct | ||
| Maarten Wensveen | CMPR | Ordinary Shares | Sale | -49.5% | $1,789,550 | $92.96 | -19,251 | 19,674 | 05 May 2026 | Direct |
| Maarten Wensveen | CMPR | Ordinary Shares | Options Exercise | 34.6% | 10,000 | 38,925 | 05 May 2026 | Direct | ||
| Maarten Wensveen | CMPR | Option (right to buy) | Options Exercise | -16.7% | -10,000 | 50,013 | 05 May 2026 | Direct | ||
| Florian Baumgartner | CMPR | Ordinary Shares | Tax liability | -6.03% | -4,411 | 68,720 | 15 Apr 2026 | Direct | ||
| Florian Baumgartner | CMPR | Ordinary Shares | Options Exercise | 14.6% | 9,288 | 73,131 | 15 Apr 2026 | Direct | ||
| Florian Baumgartner | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -100% | -9,288 | 0 | 15 Apr 2026 | Direct | ||
| Robert S. Keane | CMPR | Ordinary Shares | Tax liability | -5.26% | -4,117 | 74,087 | 15 Feb 2026 | Direct | ||
| Robert S. Keane | CMPR | Ordinary Shares | Options Exercise | 20.1% | 13,112 | 78,204 | 15 Feb 2026 | Direct | ||
| Robert S. Keane | CMPR | Performance Share Unit | Options Exercise | -14.3% | -146 | 872 | 15 Feb 2026 | Direct | ||
| Robert S. Keane | CMPR | Performance Share Units | Options Exercise | -27.7% | -12,966 | 33,877 | 15 Feb 2026 | Direct | ||
| Maarten Wensveen | CMPR | Ordinary Shares | Tax liability | -6.66% | -2,063 | 28,925 | 15 Feb 2026 | Direct | ||
| Maarten Wensveen | CMPR | Ordinary Shares | Options Exercise | 28.4% | 6,860 | 30,988 | 15 Feb 2026 | Direct | ||
| Maarten Wensveen | CMPR | Performance Share Units | Options Exercise | -27.7% | -5,000 | 13,030 | 15 Feb 2026 | Direct | ||
| Maarten Wensveen | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -33.3% | -1,860 | 3,720 | 15 Feb 2026 | Direct | ||
| Sean E. Quinn | CMPR | Ordinary Shares | Tax liability | -5.15% | -2,546 | 46,859 | 15 Feb 2026 | Direct | ||
| Sean E. Quinn | CMPR | Ordinary Shares | Options Exercise | 20.8% | 8,522 | 49,405 | 15 Feb 2026 | Direct | ||
| Sean E. Quinn | CMPR | Performance Share Units | Options Exercise | -27.4% | -6,222 | 16,504 | 15 Feb 2026 | Direct | ||
| Sean E. Quinn | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -33.3% | -2,300 | 4,599 | 15 Feb 2026 | Direct | ||
| Florian Baumgartner | CMPR | Ordinary Shares | Tax liability | -4.64% | -3,106 | 63,843 | 15 Feb 2026 | Direct | ||
| Florian Baumgartner | CMPR | Ordinary Shares | Options Exercise | 10.8% | 6,544 | 66,949 | 15 Feb 2026 | Direct | ||
| Florian Baumgartner | CMPR | Performance Share Units | Options Exercise | -27.1% | -4,853 | 13,030 | 15 Feb 2026 | Direct | ||
| Florian Baumgartner | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -33.3% | -1,691 | 3,382 | 15 Feb 2026 | Direct | ||
| Florian Baumgartner | CMPR | Ordinary Shares | Tax liability | -0.8% | -488 | 60,405 | 15 Jan 2026 | Direct | ||
| Florian Baumgartner | CMPR | Ordinary Shares | Options Exercise | 1.71% | 1,026 | 60,893 | 15 Jan 2026 | Direct | ||
| Florian Baumgartner | CMPR | Restricted Share Units (right to acquire) | Options Exercise | -20% | -1,026 | 4,102 | 15 Jan 2026 | Direct | ||
| Wayne Hsing-Yuan Ting | CMPR | Restricted Share Units (right to acquire) | Award | 2,687 | 2,687 | 17 Dec 2025 | Direct | |||
| Scott J. Vassalluzzo | CMPR | Restricted Share Units (right to acquire) | Award | 2,687 | 2,687 | 17 Dec 2025 | Direct |
* marks a reported price that did not pass the local price check.