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Merck (MRK) EVP Maraldo details stock, option and RSU holdings

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3/A

Rhea-AI Filing Summary

Merck & Co., Inc. executive David R. Maraldo, EVP & President of Merck Manufacturing Division, filed an amended initial ownership report showing his current equity holdings. He reports 17,819.434 shares of Merck common stock held directly and 8,359.140 shares held indirectly through a 401(k) plan. The filing also lists multiple stock options on Merck common stock with exercise prices between $73.73 and $129.22 per share that expire between 2031 and 2035, plus several restricted stock unit awards scheduled to vest in equal installments from 2024 through 2028. The report reflects holdings only and does not show new purchases or sales.

Positive

  • None.

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Insider Maraldo David R.
Role EVP & Pres. MMD
Type Security Shares Price Value
holding Restricted Stock Unit -- -- --
holding Restricted Stock Unit -- -- --
holding Restricted Stock Unit -- -- --
holding Stock Option (Right to Buy) -- -- --
holding Stock Option (Right to Buy) -- -- --
holding Stock Option (Right to Buy) -- -- --
holding Stock Option (Right to Buy) -- -- --
holding Stock Option (Right to Buy) -- -- --
holding Common Stock -- -- --
holding Common Stock - 401(k) Plan -- -- --
Holdings After Transaction: Restricted Stock Unit — 552 shares (Direct, null); Stock Option (Right to Buy) — 9,465 shares (Direct, null); Common Stock — 17,819.434 shares (Direct, null); Common Stock - 401(k) Plan — 8,359.14 shares (Indirect, By 401 (k))
Footnotes (1)
  1. These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 5/2/2024, 5/2/2025, and 5/2/2026. Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock. These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/30/2025, 4/30/2026, and, 4/30/2027. These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/29/2026, 4/29/2027, and, 4/29/2028. The options became exercisable in equal installments in on 5/4/2022, 5/4/2023, and 5/4/2024. The options became exercisable in equal installments on 5/3/2023, 5/3/2024, and 5/3/2025. The options vest and become exercisable in equal installments on 5/2/2024, 5/2/2025, and 5/2/2026. The options vest and become exercisable in equal installments on 4/30/2025, 4/30/2026, and 4/30/2027. The options vest and become exercisable in equal installments on 4/29/2026, 4/29/2027, and 4/29/2028.
Direct common shares 17,819.434 shares Common Stock holdings following transaction
401(k) common shares 8,359.140 shares Common Stock - 401(k) Plan holdings
Option grant (2035 expiry) 8,060 shares at $84.71 Stock Option (Right to Buy), expires 2035-04-28
Option grant (2034 expiry) 8,789 shares at $129.22 Stock Option (Right to Buy), expires 2034-04-29
Option grant (2031 expiry) 9,465 shares at $73.73 Stock Option (Right to Buy), expires 2031-05-03
RSU award (2028 expiry) 2,361 units Restricted Stock Unit, expires 2028-04-29
RSU award (2027 expiry) 581 units Restricted Stock Unit, expires 2027-04-30
RSU award (2026 expiry) 552 units Restricted Stock Unit, expires 2026-05-02
Restricted Stock Unit financial
"security_title: "Restricted Stock Unit" with underlying Merck common stock"
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
Stock Option (Right to Buy financial
"security_title: "Stock Option (Right to Buy)" on Merck common stock"
401(k) Plan financial
"security_title: "Common Stock - 401(k) Plan" indicating indirect holdings"
A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.
beneficial ownership financial
"Form 3/A serves as an amended initial statement of beneficial ownership"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
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SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Maraldo David R.

(Last)(First)(Middle)
126 EAST LINCOLN AVENUE

(Street)
RAHWAY NEW JERSEY 07065

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
05/01/2026
3. Issuer Name and Ticker or Trading Symbol
Merck & Co., Inc. [ MRK ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
05/04/2026
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP & Pres. MMD
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock17,819.434D
Common Stock - 401(k) Plan8,359.14IBy 401 (k)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Unit05/02/2024(1)05/02/2026Common Stock552(2)D
Restricted Stock Unit04/30/2025(3)04/30/2027Common Stock581(2)D
Restricted Stock Unit04/29/2026(4)04/29/2028Common Stock2,361(2)D
Stock Option (Right to Buy)05/04/2022(5)05/03/2031Common Stock9,465$73.73D
Stock Option (Right to Buy)05/03/2023(6)05/02/2032Common Stock9,709$87.1D
Stock Option (Right to Buy)05/02/2024(7)05/01/2033Common Stock8,990$117.89D
Stock Option (Right to Buy)04/30/2025(8)04/29/2034Common Stock8,789$129.22D
Stock Option (Right to Buy)04/29/2026(9)04/28/2035Common Stock8,060$84.71D
Explanation of Responses:
1. These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 5/2/2024, 5/2/2025, and 5/2/2026.
2. Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.
3. These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/30/2025, 4/30/2026, and, 4/30/2027.
4. These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/29/2026, 4/29/2027, and, 4/29/2028.
5. The options became exercisable in equal installments in on 5/4/2022, 5/4/2023, and 5/4/2024.
6. The options became exercisable in equal installments on 5/3/2023, 5/3/2024, and 5/3/2025.
7. The options vest and become exercisable in equal installments on 5/2/2024, 5/2/2025, and 5/2/2026.
8. The options vest and become exercisable in equal installments on 4/30/2025, 4/30/2026, and 4/30/2027.
9. The options vest and become exercisable in equal installments on 4/29/2026, 4/29/2027, and 4/29/2028.
Remarks:
This amendment is being filed solely to: (a) update footnote 6 to correct the schedule on which the applicable options became exercisable and (b) attach a Power of Attorney that was inadvertently omitted from the original filing. Exhibit 24: Power of Attorney is attached.
/s/ Kelly E. W. Grez as Attorney-in-Fact for David R. Maraldo05/05/2026
** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does Merck (MRK) executive David R. Maraldo report in this Form 3/A?

David R. Maraldo reports his existing Merck equity holdings, including common stock, stock options, and restricted stock units. The filing is an amended initial ownership statement and lists positions rather than new purchase or sale transactions.

How many Merck (MRK) common shares does David R. Maraldo hold directly and indirectly?

He reports 17,819.434 Merck common shares held directly and 8,359.140 shares held indirectly through a 401(k) plan. These positions together reflect his reported ownership stake as of the transaction date in the filing.

What stock options on Merck (MRK) shares does David R. Maraldo hold?

He holds several stock options on Merck common stock, including grants covering 9,465, 9,709, 8,990, 8,789 and 8,060 underlying shares. Exercise prices range from $73.73 to $129.22 per share, with expirations from 2031 through 2035.

What restricted stock units (RSUs) are reported for Merck (MRK) executive David R. Maraldo?

He reports restricted stock units covering 552, 581 and 2,361 underlying Merck common shares. Footnotes state these RSUs vest and are distributed in three equal installments on specified dates between 2024 and 2028.

Does this Merck (MRK) Form 3/A show any insider buying or selling activity?

The filing categorizes entries as holdings, with zero buy or sell transactions in the transaction summary. It functions as a position snapshot, not a record of new open-market purchases, sales, or option exercises.

How do the vesting schedules work for David R. Maraldo’s Merck (MRK) RSUs and options?

Footnotes explain that the RSUs and options vest or become exercisable in three equal installments on dates such as 5/2/2024–5/2/2026, 4/30/2025–4/30/2027, and 4/29/2026–4/29/2028. Each RSU represents a contingent right to one Merck share.