Cardinal Health (CAH) insider sells 35K shares; no 10b5-1 plan noted

Rhea-AI Filing Summary

CARDINAL HEALTH INC (CAH) reported that Stephen M. Mason, CEO of the Global Medical Products & Distribution segment, sold a total of 35,000 Common Shares on 2026-08-18 in four open-market transactions. The weighted average sale prices ranged from $234.07 to $237.67 per share, with all shares held directly. The Rule 10b5-1 trading-plan checkbox was not marked as applicable.

Insider Trade Summary

Net Seller: 35,000 shares

Net Sell 4 txns

Insider Mason Stephen M

Role CEO, GMPD Segment

Sold 35,000 shs ($8.27M)

Type	Security	Shares	Price	Value
Sale	Common Shares F1	3,100	$234.59	$727K
Sale	Common Shares F2	8,195	$235.62	$1.93M
Sale	Common Shares F3	10,876	$236.50	$2.57M
Sale	Common Shares F4	12,829	$237.26	$3.04M

Holdings After Transaction: Common Shares — 18,061 shares (Direct)

Footnotes (4)

1. F1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $234.07 to $235.05, inclusive. The reporting person undertakes to provide to Cardinal Health, Inc., any security holder of Cardinal Health, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes 1, 2, 3, and 4 to this Form 4.
2. F2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $235.08 to $236.07, inclusive.
3. F3. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $236.08 to $236.93, inclusive.
4. F4. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $237.08 to $237.67, inclusive.

Key Figures

Total shares sold: 35,000 Common Shares Shares sold lot 1: 3,100 Common Shares at $234.59 per share Shares sold lot 2: 8,195 Common Shares at $235.62 per share +3 more

6 metrics

Total shares sold 35,000 Common Shares Aggregate non-derivative sales by Stephen M. Mason on 2026-08-18

Shares sold lot 1 3,100 Common Shares at $234.59 per share Open-market sale on 2026-08-18; price is a weighted average

Shares sold lot 2 8,195 Common Shares at $235.62 per share Open-market sale on 2026-08-18; price is a weighted average

Shares sold lot 3 10,876 Common Shares at $236.50 per share Open-market sale on 2026-08-18; price is a weighted average

Shares sold lot 4 12,829 Common Shares at $237.26 per share Open-market sale on 2026-08-18; price is a weighted average

Overall price range $234.07 to $237.67 per share Ranges of individual trades across all four sale groups per footnotes

Key Terms

weighted average price, open market or private transaction, Common Shares

3 terms

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.

open market or private transaction financial

"transaction_code_description: Sale in open market or private transaction"

Common Shares financial

"security_title: Common Shares"

Common shares are the basic units of ownership in a company that give holders a claim on profits and a right to vote on key matters, like electing the board. Think of them as membership cards in a club: they let you share in successes and losses, but in a bankruptcy or liquidation they are paid after creditors and preferred shareholders, so their value can swing more and matters for assessing risk and potential return.

FAQ

What insider transaction in CAH stock did Stephen M. Mason report?

Stephen M. Mason reported selling 35,000 Common Shares of CARDINAL HEALTH INC (CAH) on 2026-08-18 in four open-market transactions at weighted average prices between $234.07 and $237.67 per share.

At what prices were the CAH shares sold in Stephen M. Mason’s Form 4?

The reported per-share prices are weighted averages: $234.59, $235.62, $236.50, and $237.26, with underlying trade ranges from $234.07 to $237.67 across the four sale groups.

Were Stephen M. Mason’s CAH share sales under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirmed, and the footnotes do not reference a trading plan, so the sales are not identified as occurring under a Rule 10b5-1 plan.

How many separate sale transactions of CAH stock did the Form 4 disclose?

The Form 4 discloses four non-derivative sale transactions in CAH Common Shares on 2026-08-18, all characterized as sales in open market or private transactions at weighted average prices.

Does the Form 4 show how many CAH shares Stephen M. Mason holds after the sales?

The reported transactions list shares sold, but the post-transaction holdings fields are blank, so the document does not state Stephen M. Mason’s remaining CAH share ownership after these trades.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/20/2026 - 07:31 AM Accepted by SEC EDGAR 08/20/2026 - 07:30 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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^*

Mason Stephen M

(Last) (First) (Middle)

7000 CARDINAL PLACE

(Street)

DUBLIN OHIO 43017

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CARDINAL HEALTH INC [ CAH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO, GMPD Segment

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Shares	08/18/2026		S		3,100	D	$234.59(1)	49,961	D
Common Shares	08/18/2026		S		8,195	D	$235.62(2)	41,766	D
Common Shares	08/18/2026		S		10,876	D	$236.5(3)	30,890	D
Common Shares	08/18/2026		S		12,829	D	$237.26(4)	18,061	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $234.07 to $235.05, inclusive. The reporting person undertakes to provide to Cardinal Health, Inc., any security holder of Cardinal Health, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes 1, 2, 3, and 4 to this Form 4.

2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $235.08 to $236.07, inclusive.

3. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $236.08 to $236.93, inclusive.

4. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $237.08 to $237.67, inclusive.

Remarks:

	/s/ Amanda S. Pashi, Attorney-in-fact	08/20/2026
	** Signature of Reporting Person	Date
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)