STOCK TITAN

Cardiff Oncology (CRDF) director receives 40,565 stock options at $1.59 strike

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Cardiff Oncology director Renee P. Tannenbaum received a new stock option grant covering 40,565 shares of common stock. These options have an exercise price of $1.59 per share and expire on June 11, 2036. Following this grant, she holds 209,331 derivative securities directly, reflecting routine equity-based compensation rather than an open-market purchase or sale.

Positive

  • None.

Negative

  • None.
Insider TANNENBAUM RENEE P
Role null
Type Security Shares Price Value
Grant/Award Stock Options 40,565 $0.00 --
Holdings After Transaction: Stock Options — 209,331 shares (Direct, null)
Footnotes (1)
Options granted 40,565 stock options Grant to director on June 11, 2026
Exercise price $1.59 per share Stock option strike price
Expiration date June 11, 2036 Option expiration
Underlying shares 40,565 shares Common stock underlying the options
Holdings after grant 209,331 derivative securities Total options held following transaction
Transaction price per option $0.00 Cost to recipient at grant
Stock Options financial
"security_title: "Stock Options""
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.
grant/award acquisition financial
"transaction_action: "grant/award acquisition""
derivative securities financial
"total_shares_following_transaction: "209331.0000" derivativeTransactionCount"
Financial contracts whose value is tied to the price or performance of another asset, such as a stock, bond, commodity, index, or currency; examples include options, futures and swaps. They matter to investors because they let you protect against price swings, bet on future moves or gain larger exposure with less upfront cash—like using a lever or insurance policy on an investment—so they can amplify gains and losses and help manage portfolio risk.
exercise price financial
"conversion_or_exercise_price: "1.5900""
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.
Common Stock financial
"underlying_security_title: "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
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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*
TANNENBAUM RENEE P

(Last)(First)(Middle)
11055 FLINTKOTE AVENUE
C/O CARDIFF ONCOLOGY, INC.

(Street)
SAN DIEGO CALIFORNIA 92121

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Cardiff Oncology, Inc. [ CRDF ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026
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
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$1.5906/11/2026A40,56506/11/202706/11/2036Common Stock40,565$0209,331D
Explanation of Responses:
/s/ Renee P Tannenbaum06/15/2026
** 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 insider transaction did Cardiff Oncology (CRDF) report for Renee P. Tannenbaum?

Cardiff Oncology reported that director Renee P. Tannenbaum received a grant of stock options for 40,565 shares of common stock. The award is compensation-related and not an open-market purchase or sale of existing shares.

What is the exercise price and term of the new CRDF stock options granted?

The granted stock options have an exercise price of $1.59 per share and expire on June 11, 2036. This gives the director a long-dated right to buy Cardiff Oncology common stock at that fixed price.

How many Cardiff Oncology derivative securities does the director hold after this Form 4?

After the reported grant, Renee P. Tannenbaum holds 209,331 derivative securities. These represent stock options tied to Cardiff Oncology common stock and provide potential future equity exposure if exercised.

Was the Cardiff Oncology (CRDF) Form 4 transaction a market buy or sell?

No, the Form 4 shows a grant or award acquisition of stock options, coded as “A.” It reflects equity compensation granted at no cost per option, not an open-market share purchase or sale.

What underlying security is covered by the new Cardiff Oncology options grant?

The stock option grant covers 40,565 shares of Cardiff Oncology common stock as the underlying security. If exercised at $1.59 per share, the options would convert into that number of common shares.