Comparable stake leader
BlackRock, Inc.
SEC ownership of UNISYS CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000746838.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Jul 2026
- Public ticker
- UIS on NYSE
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000746838
- Issuer location
- Blue Bell, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of UNISYS CORP (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
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Jul 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.4%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 7.4%.
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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
7.4%
NEEDHAM INVESTMENT MANAGEMENT LLC
6.8%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.3%
Michael M. Thomson
2.7%
Peter Altabef
2%
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 |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
7.4%
|
$21,297,635
5,245,723 shares
|
$0 | 31 Mar 2025 |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13D/G
13F
NEEDHAM INVESTMENT MANAGEMENT L.L.C. · Company
|
6.8%
|
$13,522,282
4,812,200 shares
|
-$2,100,756 | 31 Dec 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.3%
|
$7,881,039
3,807,265 shares
|
$0 | 31 Mar 2026 |
| Michael M. Thomson |
3/4/5
President & CEO
|
2.7%
|
$5,972,311
1,971,060 shares
|
— | 26 Feb 2026 |
| Peter Altabef |
3/4/5
Director
|
2%
|
$4,405,659
1,454,013 shares
|
— | 27 Feb 2026 |
| Debra McCann |
3/4/5
EVP & CFO
|
0.96%
|
$2,101,792
693,661 shares
|
— | 26 Feb 2026 |
| Christopher Arrasmith |
3/4/5
EVP & COO
|
0.71%
|
$1,560,204
514,919 shares
|
— | 26 Feb 2026 |
| Kristen Prohl |
3/4/5
SVP, GC, Secretary & CAO
|
0.61%
|
$1,620,164
442,668 shares
|
— | 31 Jul 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: -$640,532.
Buys
$0
Insiders: 0
Sells
$640,532
Insiders: 3
Net
-$640,532
Shares: -153,846
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 153,846
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 153,846 | $0 | $640,532 | -$640,532 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 31 reporting-owner rows connected to UNISYS CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
31
Largest Forms 3/4/5 holder
Michael M. Thomson
Net 12M change
-$640,533
Latest report
31 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael M. Thomson | President & CEO | $5,972,311 | Mixed | 26 Feb 2026 | ||
| Peter Altabef | Director | $4,405,659 | Mixed | 27 Feb 2026 | ||
| Debra McCann | Evp & Cfo | $2,101,792 | Mixed | 26 Feb 2026 | ||
| Kristen Prohl | SVP, GC, Secretary & CAO | $1,620,164 | Median | 31 Jul 2026 | ||
| Christopher Arrasmith | Evp & Coo | $1,560,204 | Mixed | 26 Feb 2026 | ||
| Lee D. Roberts | Director | $1,203,778 | Mixed | 24 Feb 2025 | ||
| Teresa Poggenpohl | Svp & Cmo | $1,007,684 | Mixed | 26 Feb 2026 | ||
| Philippe Germond | Director | $981,279 | -$131,618 | -12% | Filing P/S | 04 Jun 2026 |
| Matthew J. Desch | Director | $874,527 | Mixed | 27 Feb 2026 | ||
| Nathaniel A. Davis | Director | $807,934 | Mixed | 27 Feb 2026 | ||
| Paul Edward Martin | Director | $802,501 | Mixed | 27 Feb 2026 | ||
| Deborah L. James | Director | $790,160 | Mixed | 27 Feb 2026 | ||
| Joel Raper | SVP & Chief Comm. Off | $789,418 | Mixed | 26 Feb 2026 | ||
| Eric Hutto | President & COO | $663,252 | Mixed | 07 Jun 2021 | ||
| Shalabh Gupta | VP & Corporate Treasurer | $613,511 | Mixed | 26 Feb 2026 | ||
| Ruchi Kulhari | Svp & Chro | $609,602 | Mixed | 27 Feb 2026 | ||
| Regina Paolillo | Director | $569,633 | Mixed | 27 Feb 2026 | ||
| Katie Ebrahimi | Svp & Chro | $554,220 | Mixed | 28 Feb 2024 | ||
| Denise K. Fletcher | Director | $539,748 | Mixed | 28 Feb 2023 | ||
| John A. Kritzmacher | Director | $476,334 | Mixed | 27 Feb 2026 |
Recent insider transactions for UNISYS CORP
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Kristen Prohl | UIS | Common Stock | Tax liability | -0.51% | -2,282 | 442,668 | 31 Jul 2026 | Direct | ||
| Philippe Germond | UIS | Common Stock | Sale | -7.8% | $83,000 | $4.15 | -20,000 | 236,453 | 04 Jun 2026 | Direct |
| Troy Richardson | UIS | Common Stock | Sale | -50.8% | $484,374 | $4.40 | -110,000 | 106,451 | 03 Jun 2026 | Direct |
| Philippe Germond | UIS | Common Stock | Sale | -5.9% | $48,618 | $3.02 | -16,080 | 256,453 | 15 May 2026 | Direct |
| David Lawrence Brown | UIS | Common Stock | Sale | -6.37% | $24,541 | $3.16 | -7,766 | 114,111 | 11 May 2026 | Direct |
| Regina Paolillo | UIS | Common Stock | Award | 48.8% | 82,305 | 250,940 | 27 Feb 2026 | Direct | ||
| John A. Kritzmacher | UIS | Common Stock | Award | 64.5% | 82,305 | 209,839 | 27 Feb 2026 | Direct | ||
| Philippe Germond | UIS | Common Stock | Award | 43.3% | 82,305 | 272,533 | 27 Feb 2026 | Direct | ||
| Paul Edward Martin | UIS | Common Stock | Award | 45.1% | 82,305 | 264,852 | 27 Feb 2026 | Direct | ||
| Matthew J. Desch | UIS | Common Stock | Award | 52.6% | 82,305 | 238,623 | 27 Feb 2026 | Direct | ||
| Nathaniel A. Davis | UIS | Common Stock | Award | 44.6% | 82,305 | 266,645 | 27 Feb 2026 | Direct | ||
| Deborah L. James | UIS | Common Stock | Award | 46.1% | 82,305 | 260,779 | 27 Feb 2026 | Direct | ||
| Troy Richardson | UIS | Common Stock | Award | 61.4% | 82,305 | 216,451 | 27 Feb 2026 | Direct | ||
| Peter Altabef | UIS | Common Stock | Award | 6% | 82,305 | 1,454,013 | 27 Feb 2026 | Direct | ||
| Roxanne Taylor | UIS | Common Stock | Award | 156.3% | 82,305 | 134,957 | 27 Feb 2026 | Direct | ||
| Debra McCann | UIS | Common Stock | Award | 101.7% | 349,795 | 693,661 | 27 Feb 2026 | Direct | ||
| Debra McCann | UIS | Common Stock | Tax liability | -3.98% | -14,265 | 343,866 | 27 Feb 2026 | Direct | ||
| Christopher Arrasmith | UIS | Common Stock | Award | 193.6% | 339,507 | 514,919 | 27 Feb 2026 | Direct | ||
| Christopher Arrasmith | UIS | Common Stock | Tax liability | -1.43% | -2,539 | 175,412 | 27 Feb 2026 | Direct | ||
| Michael M. Thomson | UIS | Common Stock | Award | 169.4% | 1,234,568 | 1,963,541 | 27 Feb 2026 | Direct | ||
| Michael M. Thomson | UIS | Common Stock | Tax liability | -2.75% | -20,611 | 728,973 | 27 Feb 2026 | Direct | ||
| Kristen Prohl | UIS | Common Stock | Award | 137% | 257,202 | 444,950 | 27 Feb 2026 | Direct | ||
| Teresa Poggenpohl | UIS | Common Stock | Award | 125.6% | 185,186 | 332,569 | 27 Feb 2026 | Direct | ||
| Teresa Poggenpohl | UIS | Common Stock | Tax liability | -1.96% | -2,941 | 147,383 | 27 Feb 2026 | Direct | ||
| Joel Raper | UIS | Common Stock | Award | 123.6% | 144,033 | 260,534 | 27 Feb 2026 | Direct | ||
| Joel Raper | UIS | Common Stock | Tax liability | -1.61% | -1,901 | 116,501 | 27 Feb 2026 | Direct | ||
| David Lawrence Brown | UIS | Common Stock | Award | 172.6% | 77,161 | 121,877 | 27 Feb 2026 | Direct | ||
| Shalabh Gupta | UIS | Common Stock | Award | 61.6% | 77,161 | 202,479 | 27 Feb 2026 | Direct | ||
| Shalabh Gupta | UIS | Common Stock | Tax liability | -1.67% | -2,124 | 125,318 | 27 Feb 2026 | Direct | ||
| Ruchi Kulhari | UIS | Common Stock | Award | 158.8% | 123,457 | 201,189 | 27 Feb 2026 | Direct | ||
| Debra McCann | UIS | Common Stock | Tax liability | -3.2% | -11,839 | 358,131 | 26 Feb 2026 | Direct | ||
| Christopher Arrasmith | UIS | Common Stock | Tax liability | -1.58% | -2,855 | 177,951 | 26 Feb 2026 | Direct | ||
| Michael M. Thomson | UIS | Common Stock | Tax liability | -1.6% | -12,187 | 749,584 | 26 Feb 2026 | Direct | ||
| Kristen Prohl | UIS | Common Stock | Tax liability | -3.55% | -6,901 | 187,748 | 26 Feb 2026 | Direct | ||
| Teresa Poggenpohl | UIS | Common Stock | Tax liability | -2.07% | -3,184 | 150,324 | 26 Feb 2026 | Direct | ||
| Joel Raper | UIS | Common Stock | Tax liability | -1.85% | -2,226 | 118,402 | 26 Feb 2026 | Direct | ||
| David Lawrence Brown | UIS | Common Stock | Tax liability | -3.54% | -1,641 | 44,716 | 26 Feb 2026 | Direct | ||
| Shalabh Gupta | UIS | Common Stock | Tax liability | -1.74% | -2,251 | 127,442 | 26 Feb 2026 | Direct | ||
| Teresa Poggenpohl | UIS | Common Stock | Tax liability | -5.54% | -9,010 | 153,508 | 24 Feb 2026 | Direct | ||
| David Lawrence Brown | UIS | Common Stock | Tax liability | -7.03% | -3,507 | 46,357 | 24 Feb 2026 | Direct | ||
| Shalabh Gupta | UIS | Common Stock | Tax liability | -3.58% | -4,810 | 129,693 | 24 Feb 2026 | Direct | ||
| Kristen Prohl | UIS | Common Stock | Tax liability | -6.24% | -12,949 | 194,649 | 24 Feb 2026 | Direct | ||
| Debra McCann | UIS | Common Stock | Tax liability | -6.3% | -24,864 | 369,970 | 24 Feb 2026 | Direct | ||
| Michael M. Thomson | UIS | Common Stock | Tax liability | -5.39% | -43,360 | 761,771 | 24 Feb 2026 | Direct | ||
| Joel Raper | UIS | Common Stock | Tax liability | -4.37% | -5,515 | 120,628 | 24 Feb 2026 | Direct | ||
| Ruchi Kulhari | UIS | Common Stock | Tax liability | -9.02% | -7,710 | 77,732 | 24 Feb 2026 | Direct | ||
| Christopher Arrasmith | UIS | Common Stock | Tax liability | -8.09% | -15,915 | 180,806 | 24 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.