Form 4 for CRL Charles River Laboratories
Accepted 2026-08-10 16:40:15 ET · period of report 2026-08-06 · accession 0001100682-26-000124 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-08-10 16:40 | 2026-08-06 | CRL | Knell Michael Gunnar | SVP, CAO, Fin | S - Sale+OE | $260.38 | -6,645 | 11.9K | -36% | -$1.73M |
| DM | 2026-08-10 16:40 | 2026-08-06 | CRL | Knell Michael Gunnar | SVP, CAO, Fin | M - OptEx | $196.12 | +2,345 | 14.2K | +20% | +$459.9K |
| DM | 2026-08-10 16:40 | 2026-08-06 | CRL | Knell Michael Gunnar | SVP, CAO, Fin | M - OptEx | $0.00 | -2,345 | 736 | -76% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-06 | S | D | 1,274 | $259.07 | 14,878 | D | — | — | (F1) This transaction was executed in multiple trades at prices ranging from $258.77 to $259.43. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |
| 2 | Common | Common Stock | 2026-08-06 | S | D | 901 | $260.63 | 13,977 | D | — | — | (F2) This transaction was executed in multiple trades at prices ranging from $259.97 to $260.94. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |
| 3 | Common | Common Stock | 2026-08-06 | S | D | 810 | $261.45 | 13,167 | D | — | — | (F3) This transaction was executed in multiple trades at prices ranging from $261.00 to $261.84. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |
| 4 | Common | Common Stock | 2026-08-06 | S | D | 213 | $262.37 | 12,954 | D | — | — | (F4) This transaction was executed in multiple trades at prices ranging from $262.26 to $262.50. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |
| 5 | Common | Common Stock | 2026-08-06 | S | D | 620 | $263.94 | 12,334 | D | — | — | (F5) This transaction was executed in multiple trades at prices ranging from $263.39 to $264.29. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |
| 6 | Common | Common Stock | 2026-08-06 | S | D | 482 | $265.17 | 11,852 | D | — | — | (F6) This transaction was executed in multiple trades at prices ranging from $264.91 to $265.60. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |
| 7 | Common | Common Stock | 2026-08-06 | M | A | 404 | $179.66 | 12,256 | D | — | — | |
| 8 | Common | Common Stock | 2026-08-06 | M | A | 1,205 | $194.12 | 13,461 | D | — | — | |
| 9 | Common | Common Stock | 2026-08-06 | M | A | 736 | $208.44 | 14,197 | D | — | — | |
| 10 | Common | Common Stock | 2026-08-06 | S | D | 404 | $258.53 | 13,793 | D | — | — | |
| 11 | Common | Common Stock | 2026-08-06 | S | D | 1,205 | $258.53 | 12,588 | D | — | — | |
| 12 | Common | Common Stock | 2026-08-06 | S | D | 736 | $258.53 | 11,852 | D | — | — | |
| 13 | Derivative | Stock Options (Right to Buy) | 2026-08-06 | M | D | 404 | $0.00 | 0 | D | $179.66 · 2021-05-29 to 2030-05-29 | 404 Common Stock | |
| 14 | Derivative | Stock Options (Right to Buy) | 2026-08-06 | M | D | 1,205 | $0.00 | 402 | D | $194.12 · 2024-05-26 to 2033-05-26 | 1,205 Common Stock | |
| 15 | Derivative | Stock Options (Right to Buy) | 2026-08-06 | M | D | 736 | $0.00 | 736 | D | $208.44 · 2025-05-31 to 2034-05-31 | 736 Common Stock |