UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)*

Albany Molecular Research, Inc.

(Name of Issuer)

Common Stock, $0.01 Par Value Per Share

(Title of Class of Securities)

012423109

(CUSIP Number)

December 31, 2012

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨ Rule 13d-1(b)

x Rule 13d-1(c)

¨ Rule 13d-1(d)

________________________________

*Bessemer Trust Company of Delaware N.A. (“Bessemer”) is trustee of, and Mr. Stuart Cable is a special holding direction advisor to, the following trusts: the BTDEL TTEE of Thomas D’Ambra Family Trust I UAD 2/26/97 FBO Abigail D’Ambra, which holds 1,521,729.67 shares of common stock of the Issuer, (ii) the BTDEL TTEE of Thomas D’Ambra Family Trust I UAD 2/26/97 FBO Geoffrey D’Ambra, which holds 1,521,729.67 shares of common stock of the Issuer, and (iii) the BTDEL TTEE of Thomas D’Ambra Family Trust I UAD 2/26/97 FBO Agatha D’Ambra, which holds 1,521,729.66 shares of common stock of the Issuer. Bessemer, as the trustee of each of the above trusts, has sole voting and dispositive power over the shares subject to the direction of Mr. Cable as described below. Mr. Cable, as a special holding direction advisor to the trusts, has the authority to direct the trustee in the exercise of all powers with respect to the shares, including investment decisions.

** The percentage of class is calculated based on 30,924,480 shares, which is the number of outstanding shares of common stock as of October 31, 2012 as reported in the Issuer’s quarterly report on Form 10-Q for the quarter ended September 30, 2012.

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:

(1) Bessemer

If filing as a non-U.S. institution in accordance with §240.13(d)-1(b)(1)(ii)(J), please specify the type of institution: .

(2) Mr. Cable

Not applicable.

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: 4,565,189 shares of Common Stock*

(b) Percent of class: 14.8%

(c) Number of shares as to which such person has:

(i) Shared power to vote or to direct the vote: —0—

(ii) Sole power to vote or to direct the vote: 4,565,189

(iii) Shared power to dispose or to direct the disposition of: —0—

(iv) Sole power to dispose or to direct the disposition of: 4,565,189

* Bessemer is trustee of, and Mr. Cable is a special holding direction advisor to, the following trusts: the BTDEL TTEE of Thomas D’Ambra Family Trust I UAD 2/26/97 FBO Abigail D’Ambra, which holds 1,521,729.67 shares of common stock of the Issuer, (ii) the BTDEL TTEE of Thomas D’Ambra Family Trust I UAD 2/26/97 FBO Geoffrey D’Ambra, which holds 1,521,729.67 shares of common stock of the Issuer, and (iii) the BTDEL TTEE of Thomas D’Ambra Family Trust I UAD 2/26/97 FBO Agatha D’Ambra, which holds 1,521,729.66 shares of common stock of the Issuer. Bessemer, as the trustee of each of the above trusts, has sole voting and dispositive power over the shares subject to the direction of Mr. Cable as described below. Mr. Cable, as a special holding direction advisor to the trusts, has the authority to direct the trustee in the exercise of all powers with respect to the shares, including investment decisions.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 14, 2013

EXHIBIT INDEX

EXHIBIT 99.1

JOINT FILING AGREEMENT

The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him, her or it contained herein, but shall not be responsible for the completeness and accuracy of the information concerning the other entities or persons, except to the extent that he, she or it knows or has reason to believe such information is inaccurate.

In evidence thereof, the undersigned, being duly authorized, hereby execute this Joint Filing Agreement as of February 14, 2013.

EXHIBIT 99.2

MEMBERS OF GROUP

Bessemer Trust Company of Delaware N.A.

Stuart Cable