[Code of Federal Regulations]
[Title 26, Volume 5]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.421-4]

[Page 895-900]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.421-4  Modification, extension, or renewal.

    (a) In general. Section 421(e) provides the rules for determining 
whether a share of stock transferred to an individual upon his exercise 
of an option, after the terms thereof have been modified, extended, or 
renewed, is transferred pursuant to the exercise of a restricted stock 
option. Such rules and the rules of this section are applicable to 
modifications, extensions, or renewals (or to changes which are not 
treated as modifications) in the case of an exercise of an option in any 
taxable year of the optionee which begins after December 31, 1953, and 
ends after August 16, 1954.
    (b) Effect of a modification, extension, or renewal. (1) Any 
modification, extension, or renewal of the terms of an option to 
purchase stock shall be considered as the granting of a new option.
    (2) Except as otherwise provided in subparagraph (3) of this 
paragraph, in case of a modification, extension, or renewal of an 
option, the highest of the following values shall be considered to be 
the fair market value of the stock at the time of the granting of such 
option for the purpose of applying the rule of section 421(d)(1)(A)--
    (i) The fair market value on the date of the original granting of 
the option,
    (ii) The fair market value on the date of the making of such 
modification, extension, or renewal, or
    (iii) The fair market value at the time of the making of any 
intervening modification, extension, or renewal.
    (3)(i) The rules of subparagraph (2) of this paragraph do not apply 
if the aggregate of the monthly average fair market values of the stock 
subject to the option for the 12 consecutive calendar months preceding 
the month in which the modification, extension, or renewal occurs, 
divided by 12, is an

[[Page 896]]

amount less than 80 percent of the fair market value of such stock on 
the date of the original granting of the option or the date of the 
making of any intervening modification, extension, or renewal, whichever 
is the highest. In such case, any modification, extension, or renewal of 
the option is treated as the granting of a new option but only the fair 
market value of the stock subject to the option at the time of the 
modification, extension, or renewal is considered in determining whether 
the option is a restricted stock option. In the case of stocks listed on 
a stock exchange, the average fair market value of the stock for any 
month may be determined by adding the highest and lowest quoted selling 
prices during such month and dividing the sum by two. The method used 
for determining the average fair market value of the stock for any month 
must be used for all twelve months, except where it is shown that such 
method cannot be used for any month or does not clearly reflect the 
average fair market value of the stock for any such month.
    (ii) The application of subdivision (i) of this subparagraph may be 
illustrated by the following example:

    Example. On June 1, 1954, a restricted stock option was granted to 
purchase before July 1, 1955, a share of stock for $85. The fair market 
value of such stock on June 1, 1954, was $100. On June 15, 1955, when 
the fair market value of the stock is $60, such option is extended so 
that it is exercisable at any time before July 1, 1956, at $55 a share. 
The average fair market value of the stock subject to the option for 
each of the 12 calendar months preceding June 1955, is as follows:

                                  1954
June...........................................................     $100
July...........................................................       90
August.........................................................       80
September......................................................       70
October........................................................       80
November.......................................................       80
December.......................................................       90

                                  1955

January........................................................       90
February.......................................................       80
March..........................................................       70
April..........................................................       60
May............................................................       60



The aggregate of such values is $950. When this sum is divided by 12, 
the result is $79.17, which is an amount less than 80 percent of the 
fair market value of the stock ($100) when the option was granted. 
Accordingly, when the option is extended on June 15, 1955, the option 
price could have been reduced as low as $51 (85 percent of the fair 
market value of the stock on such day) without disqualifying the option 
as a restricted stock option. If the aggregate fair market values of the 
stock so ascertained had amounted to $960 or more, the rules of 
subparagraph (2) of this paragraph would have been applicable with the 
result that any reduction in the option price would have disqualified 
the option as a restricted stock option.

    (c) Definition of modification, extension, or renewal. (1) The time 
or date when an option is modified, extended, or renewed shall be 
determined, insofar as applicable, in accordance with the rules 
governing determination of the time or date of granting an option 
provided in paragraph (b) of Sec. 1.421-1. For the purpose of section 
421, the term ``modification'' means any change in the terms of the 
option which gives the optionee additional benefits under the option. 
For example, a change in the terms of the option, which shortens the 
period during which the option is exercisable, is not a modification. 
However, a change, which accelerates the time when the option is first 
exercisable, or which provides more favorable terms for the payment for 
the stock purchased under the option, is a modification. A mere change 
in the terms of the option, with respect to the number or price of the 
shares of stock subject to the option, to reflect a stock dividend or 
stock split-up is not a modification of the option. In case there is an 
assumption or substitution of the option by reason of certain corporate 
transactions, see paragraph (d) of this section. Where an option is 
amended solely to increase the number of shares subject to the option, 
such increase shall not be considered as a modification of the option, 
but shall be treated as the grant of a new option for the additional 
shares.
    (2) Any change in the terms of an option for the purpose of 
qualifying the option as a restricted stock option grants additional 
benefits and, therefore, is a modification. For example, if an option 
was granted to purchase for $80 a share of stock, the fair market value 
of which was $100 at such time, and if later the option price is 
increased to $85 in order to meet the requirement of section 
421(d)(1)(A), such change is a modification of the option,

[[Page 897]]

although the price is increased. Accordingly, the option, despite the 
change, is not a restricted stock option if the fair market value of the 
share is more than $100 when the price is increased. However, if the 
terms of an option are changed to provide that the optionee cannot 
transfer the option except by will or by the laws of descent and 
distribution, such change is not a modification, provided the option is 
at the same time changed so that it is not exercisable after the 
expiration of ten years from the date the option was granted.
    (3) An extension of an option refers to the granting by the 
corporation to the optionee of an additional period of time within which 
to exercise the option beyond the time originally prescribed. A renewal 
of an option is the granting by the corporation of the same rights or 
privileges contained in the original option on the same terms and 
conditions. The rules of this paragraph apply as well to successive 
modifications, extensions, and renewals.
    (d) Assumption or substitution of restricted stock options in 
connection with certain corporate transactions. (1) Where, by reason of 
a corporate transaction, as defined in this paragraph, an employer 
corporation, or its parent or subsidiary corporation, assumes an 
existing option, or issues a new option in place of the old option, such 
assumption or issuance is not a modification, if--
    (i) The excess of the aggregate fair market value of the stock 
subject to the option immediately after such assumption or issuance over 
the aggregate option price is not more than the excess of the aggregate 
fair market value of the stock subject to the option immediately before 
such assumption or issuance over the aggregate option price, and
    (ii) Such assumption of the old option, or issuance of the new 
option, does not give the optionee additional benefits under the option.

For the purpose of this paragraph, the term ``corporate transaction'' 
means a corporate merger, consolidation, purchase or acquisition of 
property or stock, separation, reorganization, or liquidation. Thus, for 
this purpose, a ``corporate transaction'' includes a taxable transaction 
(such as, a purchase of stock or property for cash) and any corporate 
reorganization (whether or not it comes within the definition of such 
term in section 368) and any corporate liquidation (whether or not 
section 332 is applicable).
    (2)(i) Section 421(g) provides rules under which a new employer, or 
parent or subsidiary of a new employer, may by reason of a corporate 
transaction assume a restricted stock option granted by the former 
employer or parent or subsidiary thereof, or issue a new restricted 
stock option in place of the option granted by the former employer or 
parent or subsidiary thereof, without having such assumption or 
substitution considered a modification of the option. For example, 
section 421(g) may apply where there is a merger of X Corporation into Y 
Corporation and Y Corporation wishes to employ the employees of X 
Corporation and to assume restricted stock options which had been 
granted to them by their former employer, X Corporation. Another example 
is where X Corporation forms a new subsidiary, Y Corporation, and 
transfers to it certain assets and employees, and where Y Corporation 
wishes to grant to such employees a restricted stock option to purchase 
its stock in place of the restricted stock option which they had to 
purchase stock of X Corporation.
    (ii) Section 421(g) also provides rules under which a new parent or 
subsidiary corporation of the employer corporation may by reason of a 
corporate transaction assume a restricted stock option granted by the 
employer or parent or subsidiary thereof, or issue a new restricted 
stock option in place of the option granted by the employer or parent or 
subsidiary thereof, without having such assumption or substitution 
considered a modification of the option. Section 421(g) may apply, for 
example, where X Corporation acquires a new subsidiary, Y Corporation, 
by purchase of stock and desires to grant to the employees of Y 
Corporation a restricted stock option to buy stock of X Corporation in 
place of the restricted stock option which they have to purchase the 
stock of Y Corporation.
    (iii) Section 421(g) applies only when the assumption or 
substitution occurs

[[Page 898]]

by reason of a corporate -transaction as defined in this paragraph. 
Thus, section 421(g) may apply where as a result of a corporate 
transaction a restricted stock option can no longer be exercised, or if 
exercised, section 421 would not apply (see the first example in 
subdivision (i) of this subparagraph). Moreover, section 421(g) may 
apply in any case where the reason for the assumption or substitution 
grows out of a corporate transaction even though there could have been a 
valid exercise under section 421 of the original option (see the second 
example in subdivision (i) of this subparagraph and the example in 
subdivision (ii) of this subparagraph). However, a corporation which has 
issued an option may not substitute a new option for such option under 
section 421(g).
    (3) For section 421(g) to apply, it is not necessary to show that 
the corporation assuming or substituting the option is under any 
obligation to do so. In fact, section 421(g) may apply where the option 
which is being assumed or replaced expressly provides that it will 
terminate upon the occurrence of certain corporate transactions. 
However, section 421(g) cannot be applied to revive a restricted stock 
option which, for reasons not related to the corporate transaction, 
expires before it can properly be assumed or replaced under section 
421(g). For section 421(g) to apply, the assumed or substituted option 
must qualify as a restricted stock option.
    (4) Section 421(g) does not apply if the terms of the assumed or 
substituted option confer on the employee more favorable benefits than 
he had under the old option. Thus, section 421(g) would not apply if the 
old option had just two years to run but the new option has more than 
two years to run.
    (5) For the purpose of applying section 421(g), the assumption or 
substitution shall be considered to occur at the time that the optionee 
would, except for section 421(g), be considered to have been granted the 
option which the employer corporation, or parent or subsidiary thereof, 
is issuing or assuming. An assumption or substitution which occurs by 
reason of a corporate transaction may occur before or after the 
corporate transaction.
    (6) In order to have a substitution of an option under section 
421(g) the optionee must, in connection with the corporate transaction, 
lose his rights under the old option. There cannot be a substitution of 
a new option for an old option within the meaning of section 421(g) if 
it is contemplated that the optionee may exercise both the old option 
and the new option. It is not necessary, however, to have a complete 
substitution of a new option for the old option. For example, assume 
that X Corporation forms a new corporation, Y Corporation, by a transfer 
of certain assets and distributes the stock of Y Corporation to the 
shareholders of X Corporation. Assume further that E, an employee of X 
Corporation, is thereafter an employee of both X Corporation and Y 
Corporation. Y Corporation wishes to substitute an option to purchase 
some of its stock for the restricted stock option which employee E has 
entitling him to purchase 100 shares of the stock of X Corporation. The 
option to purchase the stock of X Corporation, at $42.50 a share, was 
granted when the stock had a fair market value of $50 a share, and the 
stock was worth $100 a share just before the distribution of the new 
corporation's stock to the shareholders of X Corporation. The stock of X 
Corporation and of Y Corporation is worth $50 a share just after such 
distribution, which also is the time of the substitution. On these facts 
an option to purchase 200 shares of stock of Y Corporation at $21.25 a 
share could be given to the employee in complete substitution for the 
old option. It would also be permissible to give the employee an option 
to purchase 100 shares of stock of Y Corporation at $21.25 a share in 
substitution for his right to purchase 50 of the shares covered by the 
old option.
    (7) Any reasonable methods may be used to determine the fair market 
value of the stock subject to the option immediately before the 
assumption or substitution and the fair market value of the stock 
subject to the option immediately after the assumption or substitution. 
Such methods include the valuation methods described in Sec. 20.2031-2 
of this chapter (the Estate Tax Regulations). In the case of stock 
listed on a stock exchange, the fair

[[Page 899]]

market value may be based on the last sale before and the first sale 
after the assumption or substitution if such sales clearly reflect the 
fair market value of the stock, or may be based upon an average selling 
price during a longer period, such as the day or week before, and the 
day or week after, the assumption or substitution. If the stocks are not 
listed, or if they are newly issued, it will be reasonable to base the 
determination on experience over even longer periods. In the case of a 
merger, consolidation, or other reorganization which is arrived at by 
arm's length negotiations, the fair market value of the stocks subject 
to the option before and after the assumption or substitution may be 
based upon the values assigned to the stock for purposes of the 
reorganization. For example, if in the case of a merger the parties 
treat each share of the merged company as being equal in value to a 
share of the surviving company, it will be reasonable to assume that the 
stocks are of equal value so that the substituted option may permit the 
employee to purchase at the same price one share of the surviving 
company for each share he could have purchased of the merged company.
    (8) For the purpose of applying section 421(g), the determination of 
whether the parent-subsidiary relationship exists shall be based upon 
circumstances existing immediately after the corporate transaction.
    (e) Effect on qualification. A restricted stock option may, as a 
result of a modification, extension, or renewal, thereafter cease to be 
a restricted stock option, or any option may, by modification, 
extension, or renewal, thereafter become a restricted stock option.
    (f) Examples. The rule stated in section 421(e) may be illustrated 
by the following examples:

    Example (1). On June 1, 1954, the X Corporation grants to an 
employee an option to purchase 100 shares of the stock of X Corporation 
at $90 per share, such option to be exercised on or before June 1, 1956. 
At the time the option is granted, the fair market value of the X 
Corporation stock is $100 per share. On February 1, 1955, before the 
employee exercises the option, X Corporation modifies the option to 
provide that the price at which the employee may purchase the stock 
shall be $80 per share. On February 1, 1955, the fair market value of 
the X Corporation stock is $90 per share. Under section 421(e), the X 
Corporation is deemed to have granted an option to the employee on 
February 1, 1955. Unless the value of the stock has substantially 
declined making paragraph (b)(3) of this section applicable, such option 
shall be treated as an option to purchase at $80 per share 100 shares of 
stock having a fair market value of $100 per share, that is, the higher 
of the fair market value of the stock on June 1, 1954, and on February 
1, 1955. The exercise of such option by the employee after February 1, 
1955, is not the exercise of a restricted stock option.
    Example (2). On June 1, 1954, the X Corporation grants to an 
employee a restricted stock option to purchase 100 shares of X 
Corporation stock at $90 per share, exercisable after December 31, 1955, 
and on or before June 1, 1956. On June 1, 1954, the fair market value of 
X Corporation's stock is $100 per share. On February 1, 1955, X 
Corporation modifies the option to provide that the option shall be 
exercisable on or after February 1, 1955, and on or before June 1, 1956. 
On February 1, 1955, the fair market value of X Corporation stock is 
$110 per share. Under section 421(e), X Corporation is deemed to have 
granted an option to the employee on February 1, 1955, to purchase at 
$90 per share 100 shares of stock having a fair market value of $110 per 
share, that is, the higher of the fair market value of the stock on June 
1, 1954, and on February 1, 1955. The exercise of such option by the 
employee is not the exercise of a restricted stock option.
    Example (3). The facts are the same as in example (1), except that 
the employee exercised the option to the extent of 50 shares on January 
15, 1955, before the date of the modification of the option. Any 
exercise of the option after February 1, 1955, the date of the 
modification, is not the exercise of a restricted stock option. See 
example (1) in this paragraph. The exercise of the option on January 15, 
1955, pursuant to which 50 shares were acquired, is the exercise of a 
restricted stock option.
    Example (4). On June 1, 1954, the X Corporation grants to an 
employee an option to purchase 100 shares of the stock of X Corporation 
at $80 per share, such option to be exercised on or before June 1, 1956. 
At the time the option is granted, the fair market value of the X 
Corporation stock is $100 per share. On February 1, 1955, before the 
employee exercises the option, the X Corporation modifies the option to 
provide that the number of shares of stock which the employee may 
purchase at $80 per share will be 250. On February 1, 1955, the fair 
market value of the X Corporation stock is $90 per share. Under these 
facts, the X Corporation has granted two options, one option (not a 
restricted

[[Page 900]]

stock option) with respect to 100 shares having been granted on June 1, 
1954, and the other option (a restricted stock option) with respect to 
the additional 150 shares having been granted on February 1, 1955. In 
the absence of facts identifying which option is exercised first, the 
employee will be deemed to have exercised the options in the order in 
which they were granted.

[T.D. 6500, 25 FR 11694, Nov. 26, 1960]