Comparable stake leader
BlackRock, Inc.
SEC ownership of SYNCHRONOSS TECHNOLOGIES INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001131554.
Disclosed value leader
BRC Group Holdings, Inc.
Comparable rows
5/16
Latest evidence
31 Mar 2026
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
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
-
5 of 16
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001131554
- Issuer location
- Bridgewater, NJ
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 SYNCHRONOSS TECHNOLOGIES INC (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
BRC Group Holdings, Inc.
Comparable rows
5/16
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 5.2%
11 rows are not safely comparable across share classes.
13D/G row: BlackRock, Inc.
Showing 1-8 of 16 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 5.2%.
5 of 16 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.
5.2%
Allspring Global Investments Hold...
4.7%
BRC Group Holdings, Inc.
4.3%
VANGUARD GROUP INC
3.9%
IFP Advisors, Inc
0%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 16 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
|
5.2%
|
$4,101,366
598,757 shares
|
$0 | 30 Jun 2025 |
| Allspring Global Investments Holdings, LLC |
13D/G
|
4.7%
|
$3,707,105
541,199 shares
|
$0 | 30 Jun 2025 |
| BRC Group Holdings, Inc. |
3/4/5
13D/G
10%+ Owner · B. Riley Securities, Inc.
|
4.3%
from 13D/G
|
$13,255,376
1,033,864 shares
|
— | 23 Aug 2024 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
3.9%
|
$4,648,753
425,710 shares
|
$0 | 31 Dec 2024 |
| IFP Advisors, Inc |
13F
Company
|
0%
|
$54
6 shares
|
— | 31 Mar 2026 |
| Silver Private Holdings I, LLC |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$70,312
158,222 shares
mixed-class rows
|
— | 30 Jun 2021 |
| William J. Cadogan |
3/4/5
Director
|
—
mixed-class rows
|
$296,122
529,052 shares
mixed-class rows
|
— | 14 Jun 2021 |
| Christopher K. Hill |
3/4/5
EVP & Chief Commercial Officer
|
—
class O/S missing
|
$293,809
506,567 shares
|
— | 19 Oct 2023 |
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
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 22 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 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 21 reporting-owner rows connected to SYNCHRONOSS TECHNOLOGIES INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
BRC Group Holdings, Inc.
Net 12M change
$0
Latest report
13 Feb 2026
Recent insider transactions for SYNCHRONOSS TECHNOLOGIES INC
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Stephen G. Waldis | SNCR | Common Stock | Disposed to Issuer | -100% | -4,684 | 0 | 13 Feb 2026 | As GP of Waldis Family Partnership | ||
| Stephen G. Waldis | SNCR | Common Stock | Disposed to Issuer | -100% | -119,649 | 0 | 13 Feb 2026 | Direct | ||
| Stephen G. Waldis | SNCR | Stock Option (Right to Buy) | Options Exercise | -100% | -3,083 | 0 | 13 Feb 2026 | Direct | ||
| Stephen G. Waldis | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -5,937 | 0 | 13 Feb 2026 | Direct | ||
| Kristin S. Rinne | SNCR | Common Stock | Disposed to Issuer | -100% | -59,956 | 0 | 13 Feb 2026 | Direct | ||
| Kristin S. Rinne | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -3,366 | 0 | 13 Feb 2026 | Direct | ||
| Kristin S. Rinne | SNCR | Stock Option (Right to Purchase) | Disposed to Issuer | -100% | -2,648 | 0 | 13 Feb 2026 | Direct | ||
| Patrick Joseph Doran | SNCR | Common Stock | Disposed to Issuer | -100% | -164,211 | 0 | 13 Feb 2026 | Direct | ||
| Patrick Joseph Doran | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -34,090 | 0 | 13 Feb 2026 | Direct | ||
| Christina Gabrys | SNCR | Common Stock | Disposed to Issuer | -100% | -70,975 | 0 | 13 Feb 2026 | Direct | ||
| Christina Gabrys | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -6,385 | 0 | 13 Feb 2026 | Direct | ||
| Laurie L. Harris | SNCR | Common Stock | Disposed to Issuer | -100% | -1,889 | 0 | 13 Feb 2026 | See footnote | ||
| Laurie L. Harris | SNCR | Common Stock | Disposed to Issuer | -100% | -47,632 | 0 | 13 Feb 2026 | Direct | ||
| Laurie L. Harris | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -6,700 | 0 | 13 Feb 2026 | Direct | ||
| Jeffrey George Miller | SNCR | Common Stock | Disposed to Issuer | -100% | -429,647 | 0 | 13 Feb 2026 | Direct | ||
| Jeffrey George Miller | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -46,478 | 0 | 13 Feb 2026 | Direct | ||
| Jeffrey George Miller | SNCR | Stock Option (Right to Purchase) | Disposed to Issuer | -100% | -35,287 | 0 | 13 Feb 2026 | Direct | ||
| Lou Ferraro | SNCR | Common Stock | Disposed to Issuer | -100% | -132,979 | 0 | 13 Feb 2026 | Direct | ||
| Lou Ferraro | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -18,579 | 0 | 13 Feb 2026 | Direct | ||
| Mohan S. Gyani | SNCR | Common Stock | Disposed to Issuer | -100% | -52,689 | 0 | 13 Feb 2026 | Direct | ||
| Mohan S. Gyani | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -2,056 | 0 | 13 Feb 2026 | Direct | ||
| Mohan S. Gyani | SNCR | Stock Option (Right to Purchase) | Disposed to Issuer | -100% | -1,310 | 0 | 13 Feb 2026 | Direct | ||
| Martin Francis Bernstein | SNCR | Common Stock | Disposed to Issuer | -100% | -60,498 | 0 | 13 Feb 2026 | Direct | ||
| Martin Francis Bernstein | SNCR | Stock Option (Right to Buy) | Disposed to Issuer | -100% | -3,334 | 0 | 13 Feb 2026 | Direct | ||
| Kevin Rendino | SNCR | Common Stock | Disposed to Issuer | -100% | -52,768 | 0 | 13 Feb 2026 | Direct | ||
| Kevin Rendino | SNCR | Common Stock, par value $0.0001 per share | Other | -100% | -888,892 | 0 | 12 Sep 2025 | See footnote |
* marks a reported price that did not pass the local price check.