STOCK TITAN

Lantern Pharma (LTRN) director adds shares and long-dated stock warrants

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

Rhea-AI Filing Summary

Lantern Pharma Inc. director Jeffrey D. Keyser reported buying common stock and warrants. He acquired 48,544 shares of common stock in an open-market purchase at $2.06 per share, bringing his direct holdings to 94,303 shares. He also bought 48,544 common stock purchase warrants with an exercise price of $2.27 per share, each for 48,544 underlying shares of common stock. The securities were acquired in the company’s offering of securities that closed on May 14, 2026, and the warrants are exercisable starting November 14, 2026 and expire on November 13, 2031.

Positive

  • None.

Negative

  • None.
Insider KEYSER D JEFFREY
Role null
Bought 97,088 shs ($100K)
Type Security Shares Price Value
Purchase Common stock purchase warrant (Right to Buy) 48,544 $0.00 --
Purchase Common stock, $0.001 par value 48,544 $2.06 $100K
Holdings After Transaction: Common stock purchase warrant (Right to Buy) — 48,544 shares (Direct, null); Common stock, $0.001 par value — 94,303 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Common shares bought 48,544 shares Open-market purchase on May 12, 2026
Purchase price $2.06 per share Price paid for common stock
Shares owned after 94,303 shares Direct common stock holdings post-transaction
Warrants acquired 48,544 warrants Common stock purchase warrants acquired May 12, 2026
Warrant exercise price $2.27 per share Conversion price for underlying common stock
Warrant term Exercisable 11/14/2026 to 11/13/2031 Warrant exercisability window
Total securities acquired 97,088 securities Common shares plus warrants in this filing
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.
common stock purchase warrant financial
"Common stock purchase warrant (Right to Buy)"
A common stock purchase warrant is a tradable certificate that gives its holder the right to buy a company’s common shares at a fixed price for a set period. Think of it as a coupon that lets you buy stock later at today’s agreed price; it can amplify gains if the share price rises but also can increase the total number of shares outstanding, which may reduce existing owners’ percentage of the company. Investors watch warrants because they offer leveraged upside and can affect future share value and ownership.
exercise price financial
"conversion_or_exercise_price: 2.2700"
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.
offering of securities financial
"acquired in the issuer's offering of securities that closed on May 14, 2026"
expiration date financial
"expiration_date: 2031-11-13T00:00:00.000Z"
The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.
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*
KEYSER D JEFFREY

(Last)(First)(Middle)
1920 MCKINNEY AVENUE, 7TH FLOOR

(Street)
DALLAS TEXAS 75201

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Lantern Pharma Inc. [ LTRN ]
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)
05/12/2026
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 stock, $0.001 par value05/12/2026P48,544(1)A$2.0694,303D
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
Common stock purchase warrant (Right to Buy)$2.2705/12/2026P48,544(1) (1)11/13/2031Common Stock48,544$0.0048,544D
Explanation of Responses:
1. The reported securities were acquired in the issuer's offering of securities that closed on May 14, 2026. The warrants are exercisable commencing on November 14, 2026.
/s/ Donald Jeffrey Keyser05/14/2026
** 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 Lantern Pharma (LTRN) director Jeffrey D. Keyser buy?

He bought 48,544 shares of Lantern Pharma common stock and 48,544 common stock purchase warrants. The stock was purchased in an open-market transaction, and the warrants give him the right to buy an additional 48,544 shares at a set price.

At what price did Lantern Pharma (LTRN) stock trade in this insider purchase?

Jeffrey D. Keyser purchased 48,544 Lantern Pharma common shares at $2.06 per share. This open-market transaction increased his direct ownership and was part of a broader securities offering that closed on May 14, 2026, according to the disclosure.

How many Lantern Pharma (LTRN) shares does the director hold after the transaction?

Following the transaction, Jeffrey D. Keyser directly holds 94,303 shares of Lantern Pharma common stock. This figure excludes the additional 48,544 shares underlying the common stock purchase warrants, which represent potential future shares if the warrants are exercised.

What are the terms of the Lantern Pharma (LTRN) warrants acquired by the director?

The director acquired 48,544 common stock purchase warrants with an exercise price of $2.27 per share. These warrants become exercisable on November 14, 2026 and expire on November 13, 2031, giving a multi-year window to convert them into common shares.

Were the Lantern Pharma (LTRN) securities bought in a public offering or secondary market?

The filing states the reported securities were acquired in Lantern Pharma’s offering of securities that closed on May 14, 2026. This indicates the director participated in the company’s offering rather than only buying shares separately on the open market.

How many total Lantern Pharma (LTRN) securities did the director acquire in this Form 4?

Across both transactions, he acquired 97,088 Lantern Pharma securities: 48,544 shares of common stock and 48,544 common stock purchase warrants. The warrant position represents the right to buy an additional 48,544 common shares at the specified exercise price.