X0303 4 2011-05-21 0 0001412067 Oncothyreon Inc. ONTY 0001471149 Ayer Capital Management, LP 230 CALIFORNIA, SUITE 600 SAN FRANCISCO CA 94111 0 0 1 0 0001519942 Ayer Capital Partners, LLC 230 CALIFORNIA STREET SUITE 600 SAN FRANCISCO CA 94111 0 0 1 0 0001519940 ACM Capital Partners, LLC 230 CALIFORNIA STREET SUITE 600 SAN FRANCISCO CA 94111 0 0 1 0 0001413350 Venkatesan Jay 230 CALIFORNIA STREET SUITE 600 SAN FRANCISCO CA 94111 0 0 1 0 Common Stock 2011-05-21 4 X 0 56100 2.00 D 3271088 I See footnote Common Stock 2011-05-21 4 X 0 144900 3.00 D 3126188 I See footnote Call option (right to buy) 7 2011-05-21 4 E 0 2000 0 D 2011-04-29 2011-05-21 Common stock 2000 0 I See footnote Call option (obligation to sell) 2 2011-05-21 4 X 0 56100 0 D 2011-04-29 2011-05-21 Common stock 56100 0 I See footnote Call option (obligation to sell) 3 2011-05-21 4 X 0 144900 0 D 2011-04-29 2011-05-21 Common stock 144900 0 I See footnote Put option (obligation to buy) 5 2011-05-21 4 E 0 200000 0 D 2011-04-29 2011-05-21 Common stock 200000 0 I See footnote These securities are held by investment funds and a managed account, the investment advisor of which is Ayer Capital Management, LP (the "Advisor"). ACM Capital Partners, LLC (the "ACM") is the General Partner of the Advisor, Ayer Capital Parnters, LLC is the General Partner (the "GP") of the investment funds. Mr. Venkatesan is the managing member of ACM and the general partner of the GP. Each of the Advisor, ACM, the GP, Ayer Capital Partners, LLC and Mr. Venkatesan disclaims beneficial ownership of these securities except to the extent of its or his pecuniary interest thereof, and the filing of this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or for any other purpose. On behalf of Ayer Capital Management, LP - Jay Venkatesan, Managing Member 2011-05-23 On behalf of ACM Capital Partners, LLC, Jay Venkatesan, Managing Member 2011-05-23 Jay Venkatesan 2011-05-23 On behalf of Ayer Capital Partners, LLC, Jay Venkatesan, Managing Member 2011-05-23