As of September 29, 2026, the three largest insider holders of COR are Boots Alliance, Inc. Walgreens (TenPercentOwner, 19.98Mn shares), Boots Alliance, Inc. Walgreens (TenPercentOwner, 12.57Mn shares), Steven H Collis (Executive Chairman, 305.91K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Boots Alliance, Inc. Walgreens | TenPercentOwner | 0 | 12,570,000 | 12,570,000 | 93.3% | 10 Feb, 2025 |
| 2 | Steven H Collis | Executive Chairman | 305,913 | 0 | 305,913 | 2.3% | 18 Sep, 2025 |
| 3 | James F Cleary | Chief Financial Officer | 160,357 | 0 | 160,357 | 1.2% | 13 Mar, 2026 |
| 4 | John G. Chou | Executive Vice President | 81,367 | 0 | 81,367 | 0.6% | 21 Dec, 2021 |
| 5 | Robert P. Mauch | President Ceo | 65,393 | 0 | 65,393 | 0.5% | 24 Feb, 2026 |
| 6 | Dermot Mark Durcan | Director | 31,767 | 0 | 31,767 | 0.2% | 22 Jun, 2026 |
| 7 | Richard W Gochnauer | Director | 28,762 | 0 | 28,762 | 0.2% | 13 Mar, 2024 |
| 8 | Jane E Md Henney | Director | 24,685 | 0 | 24,685 | 0.2% | 07 Mar, 2023 |
| 9 | Kathleen W Hyle | Director | 24,406 | 0 | 24,406 | 0.2% | 13 Mar, 2024 |
| 10 | Silvana Battaglia | Executive Vice President | 23,624 | 0 | 23,624 | 0.2% | 07 Jul, 2026 |
| 11 | Henry Wadsworth Iii Mcgee | Director | 20,479 | 0 | 20,479 | 0.2% | 13 Mar, 2023 |
| 12 | Elizabeth S Campbell | Executive Vice President | 19,455 | 0 | 19,455 | 0.1% | 25 Aug, 2026 |
| 13 | Michael J Long | Director | 17,724 | 0 | 17,724 | 0.1% | 07 Mar, 2023 |
| 14 | Lon R Greenberg | Director | 17,128 | 0 | 17,128 | 0.1% | 17 Sep, 2026 |
| 15 | Lazarus Krikorian | Svp Chief Accounting Officer | 16,169 | 0 | 16,169 | 0.1% | 02 Sep, 2026 |
| 16 | Gina Clark | Executive Vice President | 13,284 | 0 | 13,284 | 0.1% | 03 Jun, 2024 |
| 17 | Dennis M Nally | Director | 13,188 | 0 | 13,188 | 0.1% | 04 Aug, 2026 |
| 18 | Leslie E Donato | Evp Chief Strategy Officer | 9,458 | 0 | 9,458 | 0.1% | 02 Jul, 2024 |
| 19 | Pawan Verma | Evp, Chief Data Info Officer | 5,148 | 0 | 5,148 | 0.0% | 24 Nov, 2025 |
| 20 | Lauren M Tyler | Director | 4,456 | 0 | 4,456 | 0.0% | 04 Aug, 2026 |
| 21 | Lorence H. Kim | Director | 4,081 | 0 | 4,081 | 0.0% | 09 Mar, 2026 |
| 22 | Redonda Miller | Director | 3,751 | 0 | 3,751 | 0.0% | 09 Mar, 2026 |
| 23 | Werner Baumann | Director | 3,687 | 0 | 3,687 | 0.0% | 09 Mar, 2026 |
| 24 | Frank Clyburn | Director | 1,724 | 0 | 1,724 | 0.0% | 09 Mar, 2026 |
| 25 | Lori Ryerkerk | Director | 1,073 | 0 | 1,073 | 0.0% | 09 Mar, 2026 |
| 26 | Ellen Cooper | Director | 893 | 0 | 893 | 0.0% | 04 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 16 Sep, 2026 | Lon R Greenberg | Director | Disposed S | 1,280 | $321.30 | $411.26K | 17,128 | Direct |
| 01 Sep, 2026 | Lazarus Krikorian | Svp Chief Accounting Officer | Disposed S | 985 | $325.97 | $321.08K | 16,169 | Direct |
| 24 Aug, 2026 | Elizabeth S Campbell | Executive Vice President | Disposed S | 11,300 | $324.12 | $3.66Mn | 19,455 | Direct |
| 31 Jul, 2026 | Dennis M Nally | Director | Acquired A | 113 | $311.34 | $35.18K | 13,188 | Direct |
| 31 Jul, 2026 | Ellen Cooper | Director | Acquired A | 97 | $311.34 | $30.20K | 893 | Direct |
| 31 Jul, 2026 | Lauren M Tyler | Director | Acquired A | 97 | $311.34 | $30.20K | 4,456 | Direct |
| 30 Jun, 2026 | Elizabeth S Campbell | Executive Vice President | Acquired A | 50 | $240.53 | $12.00K | 30,756 | Direct |
| 30 Jun, 2026 | Silvana Battaglia | Executive Vice President | Acquired A | 58 | $240.53 | $14.00K | 23,624 | Direct |
| 29 Jun, 2026 | Eva C Boratto | Chief Financial Officer | Acquired A | 21,304 | — | — | 21,304 | Direct |
| 22 Jun, 2026 | Lauren M Tyler | Director | Acquired P | 550 | $270.23 | $148.63K | 4,359 | Direct |
| 18 Jun, 2026 | Dermot Mark Durcan | Director | Acquired P | 4,000 | $274.19 | $1.10Mn | 31,767 | Direct |
| 28 May, 2026 | Dermot Mark Durcan | Director | Acquired P | 4,000 | $266.26 | $1.07Mn | 27,767 | Direct |
| 01 May, 2026 | Dennis M Nally | Director | Acquired A | 116 | $304.00 | $35.26K | 13,075 | Direct |
| 01 May, 2026 | Ellen Cooper | Director | Acquired A | 99 | $304.00 | $30.10K | 796 | Direct |
| 01 May, 2026 | Lauren M Tyler | Director | Acquired A | 99 | $304.00 | $30.10K | 3,809 | Direct |
| 01 Apr, 2026 | Lazarus Krikorian | Svp Chief Accounting Officer | Acquired A | 3,936 | $0.00 | $0 | 3,936 | Direct |
| 11 Mar, 2026 | Elizabeth S Campbell | Executive Vice President | Acquired M | 12,623 | $0.00 | $0 | 36,548 | Direct |
| 11 Mar, 2026 | James F Cleary | Chief Financial Officer | Acquired M | 12,623 | $0.00 | $0 | 165,766 | Direct |
| 11 Mar, 2026 | Silvana Battaglia | Executive Vice President | Acquired M | 8,415 | $0.00 | $0 | 27,239 | Direct |
| 11 Mar, 2026 | James F Cleary | Chief Financial Officer | Disposed F | 5,409 | $350.30 | $1.89Mn | 160,357 | Direct |