Celestica (CLS) CEO Mionis sells 23,496 shares via trust under 10b5-1 plan
Rhea-AI Filing Summary
CELESTICA INC Chief Executive Officer Robert Mionis reported multiple indirect sales of common shares on August 13, 2026. A total of 23,496 common shares were sold by an entity identified as “Mionis 2026 GRAT Number Two” at weighted average prices ranging from $360.00 to $365.39 per share, in open-market or private transactions effected pursuant to a Rule 10b5-1 plan adopted on March 11, 2026. Following these transactions, Mionis is reported as holding 453,697 common shares directly and 210,445 common shares indirectly through “Mionis 2026 GRAT Number One.”
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Insights
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Insider Trade Summary 10b5-1
Net Seller: 23,496 shares
Net Sell
8 txns
Insider
MIONIS ROBERT
Role
Chief Executive Officer
Sold
23,496 shs ($8.51M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Shares F1, F2 | 5,554 | $360.37 | $2.00M |
| Sale | Common Shares F1, F3 | 4,941 | $361.44 | $1.79M |
| Sale | Common Shares F1, F4 | 3,440 | $362.58 | $1.25M |
| Sale | Common Shares F1, F5 | 5,270 | $363.52 | $1.92M |
| Sale | Common Shares F1, F6 | 4,030 | $364.49 | $1.47M |
| Sale | Common Shares F1, F7 | 261 | $365.34 | $95K |
| holding | Common Shares | -- | -- | -- |
| holding | Common Shares | -- | -- | -- |
Holdings After Transaction:
Common Shares — 23,396 shares (Indirect, By Mionis 2026 GRAT Number Two);
Common Shares — 453,697 shares (Direct);
Common Shares — 210,445 shares (Indirect, By Mionis 2026 GRAT Number One)
Footnotes (7)
- F1. This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the reporting person on March 11, 2026.
- F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $360.00-$360.99, inclusive. 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.
- F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $361.03-$362.01, inclusive. 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.
- F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $362.11-$363.01, inclusive. 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.
- F5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $363.12-$364.11, inclusive. 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.
- F6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $364.13-$365.06, inclusive. 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.
- F7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $365.30-$365.39, inclusive. 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.
Key Figures
Total shares sold: 23,496 common shares
Sale tranche 1: 5,554 shares at $360.37 per share
Sale tranche 2: 4,941 shares at $361.44 per share
+6 more
9 metrics
Total shares sold
23,496 common shares
Aggregate common shares sold on August 13, 2026 by Mionis 2026 GRAT Number Two
Sale tranche 1
5,554 shares at $360.37 per share
One of six reported sale tranches on August 13, 2026
Sale tranche 2
4,941 shares at $361.44 per share
One of six reported sale tranches on August 13, 2026
Sale tranche 3
3,440 shares at $362.58 per share
One of six reported sale tranches on August 13, 2026
Sale tranche 4
5,270 shares at $363.52 per share
One of six reported sale tranches on August 13, 2026
Sale tranche 5
4,030 shares at $364.49 per share
One of six reported sale tranches on August 13, 2026
Sale tranche 6
261 shares at $365.34 per share
One of six reported sale tranches on August 13, 2026
Post-transaction direct holdings
453,697 common shares
Direct common share holdings of Robert Mionis after reported transactions
Post-transaction indirect holdings
210,445 common shares
Indirect holdings via Mionis 2026 GRAT Number One after reported transactions
Key Terms
Rule 10b5-1 plan, weighted average price, indirect, GRAT
4 terms
Rule 10b5-1 plan financial
"This transaction was effected pursuant to a Rule 10b5-1 plan adopted"
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
indirect financial
"direct_or_indirect": "I","nature_of_ownership": "By Mionis 2026 GRAT Number Two""
GRAT financial
"nature_of_ownership": "By Mionis 2026 GRAT Number Two""
FAQ
What insider stock transaction did CELESTICA INC (CLS) report for CEO Robert Mionis?
CELESTICA INC reported that CEO Robert Mionis indirectly sold 23,496 common shares on August 13, 2026 through “Mionis 2026 GRAT Number Two,” in a series of open-market or private transactions at weighted average prices around $360–$365 per share.
Were the August 13, 2026 CELESTICA INC (CLS) insider sales made under a Rule 10b5-1 plan?
Yes. A footnote states the transactions were effected pursuant to a Rule 10b5-1 plan adopted by Robert Mionis on March 11, 2026, indicating the sales followed a pre-arranged trading plan rather than discretionary timing.
Were the CELESTICA INC (CLS) August 13, 2026 insider sales direct or indirect holdings?
All reported sales involved indirectly held common shares attributed to “Mionis 2026 GRAT Number Two.” Separate holding entries show both direct holdings and additional indirect holdings via “Mionis 2026 GRAT Number One.”
AI-generated analysis. How Rhea-AI works. Not financial advice.
