SEC Filing Document

Company: DUKE Robotics Corp.
Ticker: DUKR
CIK: 1638911
Filing Type: S-1
Document Type: EX-4.2
Date Filed: 2026-04-01
Accession Number: 0001213900-26-037765
Exchange: OTC
SIC Code: 3721
SIC Description: Aircraft
URL: https://www.sec.gov/Archives/edgar/data/1638911/000121390026037765/ea028409601ex4-2.htm

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= the Exercise Price of this Warrant, as adjusted hereunder; and (X) = the number of Warrant Shares that would be issuable upon exercise of this Warrant in accordance with the terms of this Warrant if such exercise were by means of a cash exercise rather than a cashless exercise. If Warrant Shares are issued in such a “cashless exercise,” the parties acknowledge and agree that in accordance with Section 3(a)(9) of the Securities Act, the Warrant Shares shall take on the registered characteristics of the Warrants being exercised, and the holding period of the Warrants being exercised may be tacked on to the holding period of the Warrant Shares. The Company agrees not to take any position contrary to this Section 2(c). Notwithstanding anything herein to the contrary, on the Termination Date, this Warrant shall be automatically exercised via cashless exercise pursuant to this Section (d) Mechanics of Exercise.

(i) Delivery
of Warrant Shares Upon Exercise. The Company shall cause the Warrant Shares purchased hereunder to be transmitted by its transfer
agent to the Holder either by (A) crediting the account of the Holder’s or its designee’s balance account with The Depository
Trust Company through its Deposit or Withdrawal at Custodian system (“DWAC”) if the Company is then a participant in
such system and there is an effective registration statement permitting the issuance of the Warrant Shares to or resale of the Warrant
Shares by Holder, or (B) if there is no effective registration statement and the Warrant is exercised via cashless exercise at a time
when such Warrant Shares would be eligible for resale under Rule 144 by a non-affiliate of the Company, such Warrant Shares are delivered
to Holder’s broker, and the Company receives a statement from Holder’s broker that it has received instructions to sell the
Warrant Shares or that it would take responsibility that the sales of the Warrant Shares will only be made if the Warrant Shares are eligible
to be sold under Rule 144, and otherwise by physical delivery of a certificate, registered in the Company’s share register in the
name of the Holder or its designee, for the number of Warrant Shares to which the Holder is entitled pursuant to such exercise to the
address specified by the Holder in the Notice of Exercise by the date that is the earliest of (i) two (2) Trading Days after the delivery
to the Company of the Notice of Exercise, (ii) one (1) Trading Day after delivery of the aggregate Exercise Price to the Company and (iii)
the number of Trading Days comprising the Standard Settlement Period after the delivery to the Company of the Notice of Exercise (such
date, the “Warrant Share Delivery Date”). Upon delivery of the Notice of Exercise, the Holder shall be deemed for all
corporate purposes to have become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective
of the date of delivery of the Warrant Shares, provided that payment of the aggregate Exercise Price (other than in the case of a cashless
exercise) is received within the earlier of (i) two (2) Trading Days and (ii) the number of Trading Days comprising the Standard Settlement
Period following delivery of the Notice of Exercise. If the Warrant Shares can be delivered via DWAC, the transfer agent shall have received
from the Company, at the expense of the Company, any legal opinions or other documentation required by it to deliver such Warrant Shares
without legend (subject to receipt by the Company of reasonable back up documentation from the Holder, including with respect to affiliate
status) and, if applicable and requested by the Company prior to the Warrant Share Delivery Date, the transfer agent shall have received
from the Holder a confirmation of sale of the Warrant Shares (provided the requirement of the Holder to provide a confirmation as to the
sale of Warrant Shares shall not be applicable to the issuance of unlegended Warrant Shares upon a cashless exercise of this Warrant if
the Warrant Shares are then eligible for resale pursuant to Rule 144(b)(1)). If the Company fails for any reason to deliver to the Holder
the Warrant Shares subject to a Notice of Exercise by the Warrant Share Delivery Date; provided that payment of the aggregate Exercise
Price (other than in the instance of a cashless exercise) is received by the Company by such date, the Company shall pay to the Holder,
in cash, as liquidated damages and not as a penalty, for each $1,000 of Warrant Shares subject to such exercise (based on the VWAP of
the Common Stock on the date of the applicable Notice of Exercise), $10 per Trading Day (increasing to $20 per Trading Day on the fifth
Trading Day after such liquidated damages begin to accrue) for each Trading Day after such Warrant Share Delivery Date until such Warrant
Shares are delivered or Holder rescinds such exercise. The Company agrees to use commercially reasonable efforts to maintain a transfer
agent that is a participant in the FAST program so long as this Warrant remains outstanding and exercisable. As used herein, “Standard
Settlement Period” means the standard settlement period, expressed in a number of Trading Days, on the Company’s primary
Trading Market with respect to the Common Stock as in effect on the date of delivery of the Notice of Exercise.

(ii) Delivery
of New Warrants Upon Exercise. If this Warrant shall have been exercised in part, the Company shall, at the request of a Holder and
upon surrender of this Warrant certificate, at the time of delivery of the Warrant Shares, deliver to the Holder a new Warrant evidencing
the rights of the Holder to purchase the unpurchased Warrant Shares called for by this Warrant, which new Warrant shall in all other respects
be identical with this Warrant.

(iii) Rescission
Rights. If the Company fails to cause its transfer agent to deliver to the Holder the Warrant Shares pursuant to Section 2(d)(i) by
the Warrant Share Delivery Date, then the Holder will have the right to rescind such exercise; provided, however, that the Holder shall
be required to return any Warrant Shares or Common Stock subject to any such rescinded exercise notice concurrently with the return to
Holder of the aggregate Exercise Price paid to the Company for such Warrant Shares and the restoration of Holder’s right to acquire
such Warrant Shares pursuant to this Warrant (including, issuance of a replacement warrant certificate evidencing such restored right).