Comparable stake leader
Platin S.a r.l.
SEC ownership of WK Kellogg Co
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001959348.
Disclosed value leader
Platin S.a r.l.
Comparable rows
3/4
Latest evidence
31 Mar 2026
- Ownership evidence mix
- 13D/G, 13F, and 3/4/5
- Largest current holder
- Platin S.a r.l.
- Latest large-stake holder
- Platin S.a r.l.
- Latest evidence date
- 31 Mar 2026
- CIK
- 0001959348
- Location
- Battle Creek, MI
Ownership snapshot
2 facts
Issuer identity
2 facts
Ownership snapshot
Top shareholders of WK Kellogg Co (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
Platin S.a r.l.
Disclosed value leader
Platin S.a r.l.
Comparable rows
3/4
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 5%
1 rows are not safely comparable across share classes.
13D/G row: Platin S.a r.l.
Quick read
Platin S.a r.l. leads the comparable SEC ownership view at 5%.
3 of 4 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.
Comparable ownership
Top 3
Platin S.a r.l.
5%
FLAGSHIP WEALTH ADVISORS, LLC
0%
William B. Walkup & Associates, Inc.
0%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-4 of 4 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Platin S.a r.l. |
13D/G
Platin Holdings S.a r.l.
|
5%
|
$77,407,926
4,331,725 shares
|
$0 | 22 Jan 2025 |
| FLAGSHIP WEALTH ADVISORS, LLC |
13F
Company
|
0%
|
$1,594
100 shares
|
— | 31 Mar 2026 |
| William B. Walkup & Associates, Inc. |
13F
Company
|
0%
|
$140
7 shares
|
— | 31 Mar 2026 |
| Norma Barnes-Euresti |
3/4/5
CLO
|
—
mixed-class rows
|
$217,585
17,128 shares
mixed-class rows
|
— | 13 Dec 2024 |
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 01 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 1-17 of 17 reporting-owner rows connected to WK Kellogg Co. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest current holder
Norma Barnes-Euresti
Net 12M change
$0
Latest report
26 Sep 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Norma Barnes-Euresti | Clo | $217,585 | Mixed | 13 Dec 2024 | ||
| Michael Corbo | Director | $0 | Mixed | 26 Sep 2025 | ||
| Ramon Murguia | Director | $0 | Mixed | 26 Sep 2025 | ||
| Bruce Alan Brown | Chief Customer Officer | $0 | Mixed | 26 Sep 2025 | ||
| Doug VanDeVelde | Chief Growth Officer | $0 | Mixed | 26 Sep 2025 | ||
| Wendy C. Arlin | Director | $0 | Mixed | 26 Sep 2025 | ||
| David McKinstray | Chief Financial Officer | $0 | Mixed | 26 Sep 2025 | ||
| Mindy Sherwood | Director | $0 | Mixed | 26 Sep 2025 | ||
| Sherry Brice | Chief Supply Chain Officer | $0 | Mixed | 26 Sep 2025 | ||
| Julio N. Nemeth | Director | $0 | Mixed | 26 Sep 2025 | ||
| Gary H. Pilnick | Chief Executive Officer, Director | $0 | Mixed | 26 Sep 2025 | ||
| R. David Banyard Jr. | Director | $0 | Mixed | 26 Sep 2025 | ||
| G. Zachary Gund | Director | $0 | Mixed | 26 Sep 2025 | ||
| Lisa Walter | Chief Accounting Officer | $0 | Mixed | 26 Sep 2025 | ||
| KELLOGG W K FOUNDATION TRUST | 10%+ Owner | $0 | Mixed | 26 Sep 2025 | ||
| KELLANOVA | 10%+ Owner | Mixed | 01 Oct 2023 | |||
| Gordon Paulson | Director | Mixed | 12 Sep 2023 |
Recent insider transactions for WK Kellogg Co
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Bruce Alan Brown | KLG | Common Stock | Disposed to Issuer | -100% | -341 | 0 | 26 Sep 2025 | By 401(k) Plan | ||
| Bruce Alan Brown | KLG | Common Stock | Disposed to Issuer | -100% | -11,835 | 0 | 26 Sep 2025 | Direct | ||
| Bruce Alan Brown | KLG | Dividend Equivalent Units | Disposed to Issuer | -100% | -8,131 | 0 | 26 Sep 2025 | Direct | ||
| Bruce Alan Brown | KLG | Performance-based Restricted Stock Units | Disposed to Issuer | -100% | -33,257 | 0 | 26 Sep 2025 | Direct | ||
| Bruce Alan Brown | KLG | Performance-based Restricted Stock Units | Award | 33,257 | 33,257 | 26 Sep 2025 | Direct | |||
| Bruce Alan Brown | KLG | Restricted Stock Units | Disposed to Issuer | -100% | -127,707 | 0 | 26 Sep 2025 | Direct | ||
| David McKinstray | KLG | Common Stock | Disposed to Issuer | -100% | -30.14 | 0 | 26 Sep 2025 | By 401(k) Plan | ||
| David McKinstray | KLG | Common Stock | Disposed to Issuer | -100% | -47,889 | 0 | 26 Sep 2025 | Direct | ||
| David McKinstray | KLG | Dividend Equivalent Units | Disposed to Issuer | -100% | -10,936 | 0 | 26 Sep 2025 | Direct | ||
| David McKinstray | KLG | Performance-based Restricted Stock Units | Disposed to Issuer | -100% | -65,812 | 0 | 26 Sep 2025 | Direct | ||
| David McKinstray | KLG | Performance-based Restricted Stock Units | Award | 65,812 | 65,812 | 26 Sep 2025 | Direct | |||
| David McKinstray | KLG | Restricted Stock Units | Disposed to Issuer | -100% | -170,549 | 0 | 26 Sep 2025 | Direct | ||
| Sherry Brice | KLG | Common Stock | Disposed to Issuer | -100% | -11,450 | 0 | 26 Sep 2025 | Direct | ||
| Sherry Brice | KLG | Dividend Equivalent Units | Disposed to Issuer | -100% | -7,934 | 0 | 26 Sep 2025 | Direct | ||
| Sherry Brice | KLG | Performance-based Restricted Stock Units | Disposed to Issuer | -100% | -33,257 | 0 | 26 Sep 2025 | Direct | ||
| Sherry Brice | KLG | Performance-based Restricted Stock Units | Award | 33,257 | 33,257 | 26 Sep 2025 | Direct | |||
| Sherry Brice | KLG | Restricted Stock Units | Disposed to Issuer | -100% | -116,993 | 0 | 26 Sep 2025 | Direct | ||
| Julio N. Nemeth | KLG | Common Stock | Disposed to Issuer | -100% | -6 | 0 | 26 Sep 2025 | Held in Trust for Children | ||
| Julio N. Nemeth | KLG | Common Stock | Disposed to Issuer | -100% | -6 | 0 | 26 Sep 2025 | Held in Trust for Spouse | ||
| Julio N. Nemeth | KLG | Common Stock | Disposed to Issuer | -100% | -24,354 | 0 | 26 Sep 2025 | Direct | ||
| Julio N. Nemeth | KLG | Phantom Stock | Disposed to Issuer | -100% | -1,240 | 0 | 26 Sep 2025 | Direct | ||
| Julio N. Nemeth | KLG | Deferred Stock Units | Disposed to Issuer | -100% | -3,617 | 0 | 26 Sep 2025 | Direct | ||
| Doug VanDeVelde | KLG | Common Stock | Disposed to Issuer | -100% | -23,284 | 0 | 26 Sep 2025 | Held in Trust by Spouse | ||
| Doug VanDeVelde | KLG | Common Stock | Disposed to Issuer | -100% | -177 | 0 | 26 Sep 2025 | By 401(k) Plan | ||
| Doug VanDeVelde | KLG | Common Stock | Disposed to Issuer | -100% | -1,241 | 0 | 26 Sep 2025 | Direct | ||
| Doug VanDeVelde | KLG | Dividend Equivalent Units | Disposed to Issuer | -100% | -9,513 | 0 | 26 Sep 2025 | Direct | ||
| Doug VanDeVelde | KLG | Performance-based Restricted Stock Units | Disposed to Issuer | -100% | -45,284 | 0 | 26 Sep 2025 | Direct | ||
| Doug VanDeVelde | KLG | Performance-based Restricted Stock Units | Award | 45,284 | 45,284 | 26 Sep 2025 | Direct | |||
| Doug VanDeVelde | KLG | Restricted Stock Units | Disposed to Issuer | -100% | -142,080 | 0 | 26 Sep 2025 | Direct | ||
| Gary H. Pilnick | KLG | Common Stock | Disposed to Issuer | -100% | -95,442 | 0 | 26 Sep 2025 | Held in Trust for Self | ||
| Gary H. Pilnick | KLG | Common Stock | Disposed to Issuer | -100% | -12,867 | 0 | 26 Sep 2025 | Held in Trust by Spouse and Children | ||
| Gary H. Pilnick | KLG | Common Stock | Disposed to Issuer | -100% | -318 | 0 | 26 Sep 2025 | Held in Trust by Spouse | ||
| Gary H. Pilnick | KLG | Common Stock | Disposed to Issuer | -100% | -79.95 | 0 | 26 Sep 2025 | By 401(k) Plan | ||
| Gary H. Pilnick | KLG | Common Stock | Disposed to Issuer | -100% | -3,923 | 0 | 26 Sep 2025 | Direct | ||
| Gary H. Pilnick | KLG | Dividend Equivalent Units | Disposed to Issuer | -100% | -49,162 | 0 | 26 Sep 2025 | Direct | ||
| Gary H. Pilnick | KLG | Performance-based Restricted Stock Units | Disposed to Issuer | -100% | -245,046 | 0 | 26 Sep 2025 | Direct | ||
| Gary H. Pilnick | KLG | Performance-based Restricted Stock Units | Award | 245,046 | 245,046 | 26 Sep 2025 | Direct | |||
| Gary H. Pilnick | KLG | Restricted Stock Units | Disposed to Issuer | -100% | -746,552 | 0 | 26 Sep 2025 | Direct | ||
| Ramon Murguia | KLG | Common Stock | Disposed to Issuer | -100% | -75 | 0 | 26 Sep 2025 | By Trust | ||
| Ramon Murguia | KLG | Common Stock | Disposed to Issuer | -100% | -25,354 | 0 | 26 Sep 2025 | Direct | ||
| Ramon Murguia | KLG | Phantom Stock | Disposed to Issuer | -100% | -1,240 | 0 | 26 Sep 2025 | Direct | ||
| Lisa Walter | KLG | Common Stock | Disposed to Issuer | -100% | -504 | 0 | 26 Sep 2025 | Direct | ||
| Lisa Walter | KLG | Dividend Equivalent Units | Disposed to Issuer | -100% | -417 | 0 | 26 Sep 2025 | Direct | ||
| Lisa Walter | KLG | Performance-based Restricted Stock Units | Disposed to Issuer | -100% | -9,645 | 0 | 26 Sep 2025 | Direct | ||
| Lisa Walter | KLG | Performance-based Restricted Stock Units | Award | 9,645 | 9,645 | 26 Sep 2025 | Direct | |||
| Lisa Walter | KLG | Restricted Stock Units | Disposed to Issuer | -100% | -9,228 | 0 | 26 Sep 2025 | Direct | ||
| R. David Banyard | KLG | Common Stock | Disposed to Issuer | -100% | -24,354 | 0 | 26 Sep 2025 | Direct | ||
| R. David Banyard | KLG | Phantom Stock | Disposed to Issuer | -100% | -1,240 | 0 | 26 Sep 2025 | Direct | ||
| G. Zachary Gund | KLG | Common Stock | Disposed to Issuer | -100% | -613,124 | 0 | 26 Sep 2025 | See footnote | ||
| G. Zachary Gund | KLG | Common Stock | Disposed to Issuer | -100% | -35,310 | 0 | 26 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.