X0306 4 2020-11-06 0 0001497770 Walker & Dunlop, Inc. WD 0001507723 THEOBALD STEPHEN P C/O WALKER & DUNLOP, INC. 7501 WISCONSIN AVENUE, SUITE 1200E BETHESDA MD 20814 0 1 0 0 EVP & Chief Financial Officer Common Stock 2020-11-06 4 M 0 14868 18.03 A 86115.369 D Common Stock 2020-11-06 4 S 0 7261 66.1964 D 78854.369 D Common Stock 2020-11-06 4 S 0 6527 67.2855 D 72327.369 D Common Stock 2020-11-06 4 S 0 1080 68.1229 D 71247.369 D Common Stock 2020-11-06 5 G 0 E 2000 0 D 69247.369 D Common Stock 2020-11-09 4 M 0 13680 18.03 A 82927.369 D Common Stock 2020-11-09 4 S 0 6035 70.671 D 76892.369 D Common Stock 2020-11-09 4 S 0 6965 71.488 D 69927.369 D Common Stock 2020-11-09 4 S 0 680 72.3316 D 69247.369 D Stock Options (right to buy) 18.03 2020-11-06 4 M 0 14868 0 D 2016-04-01 2023-04-01 Common Stock 14868 13680 D Stock Options (right to buy) 18.03 2020-11-09 4 M 0 13680 0 D 2016-04-01 2023-04-01 Common Stock 13680 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.81 to $66.73. The reporting person undertakes to provide Walker & Dunlop, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.815 to $67.72. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.85 to $68.65. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.05 to $71.025. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.11 to $72.02. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.16 to $72.56. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Daniel J. Groman, Attorney-in-fact 2020-11-10