0001574235 2026-10-03 2026-10-03 0001574235 1 2026-10-03 2026-10-03 0001574235 2 2026-10-03 2026-10-03 iso4217:USD pure shares S-3 S-3/A EX-FILING FEES 333-296478 0001574235 Pulmatrix, Inc. N/A N/A S-3 Pulmatrix, Inc. false Equity Common Stock, par value $0.0001 per share true 697 1.5235 1061.88 0.000087 0.09 true Equity Common Stock, par value $0.0001 per share true 490910 1.345 660273.95 91.18 661335.83 91.27 91.18 0.00 0.09 (1) Pursuant to Rule 416 under the Securities Act of 1933 (the "Securities Act"), the shares being registered hereunder include such indeterminate number of shares of common stock, par value $0.0001 per share (the "Common Stock"), as may be issuable with respect to the shares being registered hereunder as a result of stock splits, stock dividends or similar transactions. (2) Represents an additional of 697 shares of Common Stock issuable upon the conversion of shares of Series B Convertible Preferred Stock (the "Preferred Stock") and issuable as dividends to the holders of the Preferred Stock, based on the Company's reasonable good-faith estimate of the number of Dividend Shares to be issued. (3) Estimated solely for the purpose of calculating the amount of the registration fee pursuant to Rule 457(c) under the Securities Act, based on the average of the high and low prices of the Common Stock as reported on the Nasdaq Capital Market on October 1, 2026, which such date is within five business days of the filing of this registration statement, of $1.5235 per share. The Registrant previously paid a registration fee of $91.18 in connection with the initial filing of this Registration Statement on June 4, 2026, based on the registration of 490,607 shares of Common Stock at a proposed maximum offering price per share of $1.345, estimated solely for purposes of calculating the registration fee pursuant to Rule 457(c) under the Securities Act, with a fee rate of $0.0001381. The registration fee for the 697 shares of Common Stock registered hereby, calculated pursuant to Rule 457(c) under the Securities Act on the basis of the average of the high and low prices of the Common Stock as reported on The Nasdaq Capital Market on October 1, 2026, is $1.5235, and the current fee rate is now $0.00008700. Because the registration fee previously paid does not exceed the registration fee calculated for this Amendment No. 2, the net fee due is $0.09.