STOCK TITAN

WESCO (WCC) EVP Castillo buys 1,400 shares and receives 1,400 stock options

Filing Impact
(Moderate)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

WESCO International executive Daniel J. Castillo reported multiple equity transactions in company stock. He received stock options for 1,400 shares of common stock with an exercise price of $273.62 per share, expiring on March 31, 2036. These options vest in three equal annual installments starting one year after the grant date.

On the same date, he bought 1,400 shares of WESCO common stock in an open-market purchase at $266.06 per share. He also acquired 25.1293 additional common shares as dividend equivalent rights tied to his existing restricted stock units. Following these transactions, he directly holds 15,325.1593 shares of common stock and 1,400 stock options.

Positive

  • None.

Negative

  • None.

Insights

Castillo made a modest net share purchase alongside routine equity awards.

Executive vice president Daniel J. Castillo received 1,400 stock options with a $273.62 exercise price, vesting over three years from the March 31, 2026 grant. This is classic long-term incentive compensation, giving upside if WESCO's share price exceeds the strike.

He also executed an open-market purchase of 1,400 common shares at $266.06 per share, plus 25.1293 shares from dividend equivalent rights on RSUs. After these transactions he directly owns 15,325.1593 shares and 1,400 options, indicating a routine but clearly net-buy alignment with shareholders based on the data shown.

Insider Castillo Daniel J
Role EVP & GM, EES
Bought 1,400 shs ($372K)
Type Security Shares Price Value
Grant/Award Stock Options (Right to Buy) 1,400 $0.00 --
Purchase Common Stock 1,400 $266.06 $372K
Grant/Award Common Stock 25.129 $0.00 --
Holdings After Transaction: Stock Options (Right to Buy) — 1,400 shares (Direct); Common Stock — 15,300.03 shares (Direct)
Footnotes (1)
  1. Represents dividend equivalent rights ("DERs") in connection with the Issuer's quarterly dividend and accrued to the Reporting Person on restricted stock units ("RSUs") held by the Reporting Person. Each DER is the economic equivalent of one share of Issuer's common stock and vests on the same schedule as the underlying award. The stock options become exercisable in three equal annual installments beginning on the first anniversary of the date of grant.
Stock options granted 1,400 options Right to buy common stock at $273.62, expiring March 31, 2036
Option exercise price $273.62/share Exercise price for 1,400 stock options granted March 31, 2026
Open-market shares purchased 1,400 shares Common stock bought at $266.06 per share on March 31, 2026
Purchase price $266.06/share Price paid for 1,400 WESCO common shares in open-market trade
Dividend equivalent rights shares 25.1293 shares DERs credited on RSUs, equal in value to common stock dividends
Post-transaction common shares 15,325.1593 shares Direct WESCO common stock holdings after all reported transactions
Post-transaction options 1,400 options Stock options held after grant reported in this Form 4
dividend equivalent rights ("DERs") financial
"Represents dividend equivalent rights ("DERs") in connection with the Issuer's quarterly dividend"
restricted stock units ("RSUs") financial
"accrued to the Reporting Person on restricted stock units ("RSUs") held by the Reporting Person"
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
stock options financial
"The stock options become exercisable in three equal annual installments"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
exercise price financial
"conversion_or_exercise_price": "273.6200""
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
open-market purchase financial
"transaction_action": "open-market purchase""
An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.
grant, award, or other acquisition financial
"transaction_code_description": "Grant, award, or other acquisition""
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Castillo Daniel J

(Last)(First)(Middle)
225 WEST STATION SQUARE DRIVE
SUITE 700

(Street)
PITTSBURGH PENNSYLVANIA 15219-1122

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
WESCO INTERNATIONAL INC [ WCC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP & GM, EES
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock03/31/2026P1,400A$266.0615,300.03D
Common Stock03/31/2026A25.1293(1)A$015,325.1593D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Options (Right to Buy)$273.6203/31/2026A1,400 (2)03/31/2036Common Stock1,400$01,400D
Explanation of Responses:
1. Represents dividend equivalent rights ("DERs") in connection with the Issuer's quarterly dividend and accrued to the Reporting Person on restricted stock units ("RSUs") held by the Reporting Person. Each DER is the economic equivalent of one share of Issuer's common stock and vests on the same schedule as the underlying award.
2. The stock options become exercisable in three equal annual installments beginning on the first anniversary of the date of grant.
/s/ Michele Nelson, as Attorney-in-Fact04/02/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did WESCO (WCC) executive Daniel J. Castillo do in this Form 4 filing?

Daniel J. Castillo reported receiving stock options, buying common shares, and getting dividend-linked shares. He was granted 1,400 options, purchased 1,400 shares in the open market, and gained 25.1293 dividend equivalent shares, increasing his direct ownership in WESCO stock.

How many WESCO (WCC) shares did Daniel J. Castillo buy on the open market?

He bought 1,400 shares of WESCO common stock in an open-market transaction. The reported purchase price was $266.06 per share on March 31, 2026, reflecting a cash investment that increased his direct common stock holdings reported in this Form 4.

What stock options did Daniel J. Castillo receive from WESCO (WCC)?

He received stock options covering 1,400 shares of WESCO common stock at a $273.62 exercise price. These options expire on March 31, 2036 and vest in three equal annual installments beginning on the first anniversary of the grant date, encouraging long-term retention.

What are the dividend equivalent rights (DERs) reported for WESCO (WCC) in this filing?

The filing shows 25.1293 dividend equivalent rights credited to Castillo on his restricted stock units. Each DER equals one share of WESCO common stock and vests on the same schedule as the underlying RSU award, effectively reinvesting dividends into additional share-based units.

What is Daniel J. Castillo’s WESCO (WCC) share ownership after these transactions?

After the reported transactions, he directly holds 15,325.1593 shares of WESCO common stock. He also holds 1,400 stock options granted in this filing, providing additional potential future ownership if exercised, according to the reported post-transaction holdings.

Were Daniel J. Castillo’s WESCO (WCC) stock options immediately exercisable?

No, the stock options are not immediately fully exercisable. The filing states they become exercisable in three equal annual installments, starting on the first anniversary of the March 31, 2026 grant date, spreading vesting over three years to promote ongoing service.