UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

x

Rule 13d-1(b)

o

Rule 13d-1(c)

o

Rule 13d-1(d)

CUSIP No. 45972C102

1.

Names of Reporting Persons
Kennerman Associates, Inc. d/b/a Kershner Grosso & Co.

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

o

3.

SEC Use Only

4.

Citizenship or Place of Organization
New York

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
0

6.

Shared Voting Power
0

7.

Sole Dispositive Power
0

8.

Shared Dispositive Power
96,047,560

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
96,047,560

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o

11.

Percent of Class Represented by Amount in Row (9)
33.3%(1)

12.

Type of Reporting Person (See Instructions)
IA

CUSIP No. 45972C102

1.

Names of Reporting Persons
Christpher Grosso

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

o

3.

SEC Use Only

4.

Citizenship or Place of Organization
New York

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
13,313,540 (1)

6.

Shared Voting Power
0

7.

Sole Dispositive Power
2,877,777(1)

8.

Shared Dispositive Power
10,435,763

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
13,313,540(1)

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  x
Excludes 85,611,797 shares of common stock owned by various investment advisory clients of Kennerman Associates, Inc. d/b/a Kershner Grosso & Co.

11.

Percent of Class Represented by Amount in Row (9)
4.6%(1)(2)

12.

Type of Reporting Person (See Instructions)
IA

CUSIP No. 45972C102

1.

Names of Reporting Persons
Thomas Kershner

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

o

3.

SEC Use Only

4.

Citizenship or Place of Organization
New York

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
6,379,242(1)

6.

Shared Voting Power
0

7.

Sole Dispositive Power
100,000(1)

8.

Shared Dispositive Power
6,214,242

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
6,314,242(1)

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  x
Excludes 89,833,318 shares of common stock owned by various investment advisory clients of Kennerman Associates, Inc. d/b/a Kershner Grosso & Co.

11.

Percent of Class Represented by Amount in Row (9)
2.2%(1)(2)

12.

Type of Reporting Person (See Instructions)
IA

Item 1.

(a)

Name of Issuer
International Isotopes, Inc.

(b)

Address of Issuer’s Principal Executive Offices
4137 Commerce Circle, Idaho Falls, Idaho,  83401

Item 2.

(a)

Name of Person Filing
See Item 1 of each cover page.

(b)

Address of Principal Business Office or, if none, Residence
480 Broadway, Suite 310, Saratoga Springs, New York 12866

(c)

Citizenship
See Item 4 of each cover page.

(d)

Title of Class of Securities
Common Stock, $.01 par value

(e)

CUSIP Number
45972C102

Item 3.

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

o

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

(b)

o

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c)

o

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d)

o

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

(e)

x

An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

(f)

o

An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

(g)

o

A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);

(h)

o

A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

o

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

o

A non-U.S. institution in accordance with § 240.13d–1(b)(1)(ii)(J);

(k)

o

Group, in accordance with § 240.13d–1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with

§ 240.13d–1(b)(1)(ii)(J), please specify the type of institution:____________________________

Item 4.

Ownership

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a)

Amount beneficially owned:   

As of December 31, 2008, Kennerman Associates, Inc. d/b/a Kershner Grosso & Co. had beneficial ownership of 96,047,560 shares of common stock, $.01 par value (“Shares”) of International Isotopes, Inc. (the “Issuer”) acquired for the accounts of certain of its investment advisor clients.  Christopher Grosso is a principal of Kennerman Associates, Inc., and may be deemed to have beneficial ownership of the Shares beneficially owned by Kennerman Associates, Inc.  Thomas Kershner is the President of Kennerman Associates, Inc., and may be deemed to have beneficial ownership of the Shares beneficially owned by Kennerman Associates, Inc.

The filing of this report  shall not be construed  as  an admission that either Christopher Grosso or Thomas Kershner is, for  purposes of Section 13(d)  or  13(g)  of the  Act  or for  any  other  purposes,  the beneficial owner of  the Shares.  Christopher Grosso disclaims beneficial ownership of 85,611,797 Shares covered by this Schedule 13G.  Thomas Kershner disclaims beneficial ownership of 89,833,318 Shares covered by this Schedule 13G.

(b)

Percent of class:   

See Item 11 of each cover page.

(c)

Number of shares as to which the person has:

(i)

Sole power to vote or to direct the vote:  See Item 5 of each cover page.

(ii)

Shared power to vote or to direct the vote: See Item 6 of each cover page.

(iii)

Sole power to dispose or to direct the disposition of the shares: See Item 7 of each cover page.

(iv)

Shared power to dispose of or to direct the disposition of: See Item 8 of each cover page.

Item 5.

Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following   o.

Item 6.

Ownership of More than Five Percent on Behalf of Another Person

See Item 4(a) above.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person

Not applicable.

Item 8.

Identification and Classification of Members of the Group

Not applicable.

Item 9.

Notice of Dissolution of Group

Not applicable.

Item 10.

Certification

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Kennerman Associates, Inc. d/b/a Kershner Grosso & Co.

April 29, 2009

Date

/s/ Thomas Kershner

Signature

President

Title

Christopher Grosso

April 29, 2009

Date

/s/ Christopher Grosso

Signature

N/A

Title

Thomas Kershner

April 29, 2009

Date

/s/ Thomas Kershner

Signature

N/A

Title

ATTENTION

Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).