UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 144
NOTICE OF PROPOSED SALE OF SECURITIES
PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

OMB APPROVAL

OMB Number:                3235-0101

Expires:                   March 31, 2011

Estimated average burden hours per response . . . . . . . . . . . . . . . . . . 2.00

SEC USE ONLY

DOCUMENT SEQUENCE NO.

CUSIP NUMBER

ATTENTION:  Transmit for filing 3 copies of this form concurrently with either placing an order with a broker to execute sale or executing a sale directly with a market maker.

1 (a) NAME OF ISSUER (Please type or print)

  (b) IRS IDENT. NO.

  (c) S.E.C. FILE NO.

WORK LOCATION

TriMas Corporation

  38-2687639

  011-10716

1 (d) ADDRESS OF ISSUER

STREET

CITY

STATE

ZIP CODE

    (e) TELEPHONE NO.

39400 Woodward Avenue, Ste. 130

Bloomfield Hills

MI

48304

AREA CODE

NUMBER

248

631-5400

2 (a) NAME OF PERSON FOR WHOSE ACCOUNT THE SECURITIES ARE TO BE SOLD

(b)

RELATIONSHIP TO ISSUER

(c)

ADDRESS STREET

CITY

STATE

ZIP CODE

Samuel Valenti III

Chairman of the Board and Director.

39400 Woodward Avenue, Ste. 100

Bloomfield Hills

MI

48304

3 (a)

Title of the
Class of
Securities
To Be Sold

(b)

Name and Address of Each Broker Through Whom the
Securities are to be Offered or Each Market Maker
who is Acquiring the Securities

SEC USE ONLY

(c)

Number of Shares
or Other Units
To Be Sold
(See instr. 3(c))

(d)

Aggregate
Market
Value
(See instr. 3(d))

(e)

Number of Shares
or Other Units
Outstanding
(See instr. 3(e))

(f)

Approximate
Date of Sale
(See instr. 3(f))
(MO.      DAY      YR.)

(g)

Name of Each
Securities
Exchange
(See instr. 3(g))

Broker-Dealer
File Number

Common Stock

Instinet

3 Times Square, New York, N.Y.  10036

60,000

$828,000

34,037,885

08/19/2010

NASDAQ

INSTRUCTIONS:

3.

(a)

Title of the class of securities to be sold

1.

(a)

Name of issuer

(b)

Name and address of each broker through whom the securities are intended to be sold

(b)

Issuer’s I.R.S. Identification Number

(c)

Number of shares or other units to be sold (if debt securities, give the aggregate face amount)

(c)

Issuer’s S.E.C. file number, if any

(d)

Aggregate market value of the securities to be sold as of a specified date within 10 days prior to the filing of this notice

(d)

Issuer’s address, including zip code

(e)

Number of shares or other units of the class outstanding, or if debt securities the face amount thereof outstanding, as shown by the most recent report or statement published by the issuer

(e)

Issuer’s telephone number, including area code

(f)

Approximate date on which the securities are to be sold

(g)

Name of each securities exchange, if any, on which the securities are intended to be sold

2.

(a)

Name of person for whose account the securities are to be sold

(b)

Such person’s relationship to the issuer (e.g., officer, director, 10% stockholder, or member of immediate family of any of the foregoing)

(c)

Such person’s address, including zip code

Title of
the Class

Date you
Acquired

Nature of Acquisition Transaction

Name of Person from Whom Acquired
(If gift, also give date donor acquired)

Amount of
Securities Acquired

Date of
Payment

Nature of Payment

Common Stock

08/06/2007

Open Market - NYSE

NYSE Market Open Market Transaction

70,000

08/09/2007

Cash

INSTRUCTIONS:

If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Name and Address of Seller

Title of Securities Sold

Date of Sale

Amount of
Securities Sold

Gross Proceeds

INSTRUCTIONS:

ATTENTION: The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

See the definition of “person” in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.