S-3 S-3/A EX-FILING FEES 333-296478 0001574235 Pulmatrix, Inc. N/A N/A 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 xbrli:pure xbrli:shares

Calculation of Filing Fee Tables

S-3

Pulmatrix, Inc.

Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable

Security Type

Security Class Title

Fee Calculation or Carry Forward Rule

Amount Registered

Proposed Maximum Offering Price Per Unit

Maximum Aggregate Offering Price

Fee Rate

Amount of Registration Fee

Carry Forward Form Type

Carry Forward File Number

Carry Forward Initial Effective Date

Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward

Newly Registered Securities
Fees to be Paid 1 Equity Common Stock, par value $0.0001 per share Other 697 $ 1.5235 $ 1,061.88 0.000087 $ 0.09
Fees Previously Paid 2 Equity Common Stock, par value $0.0001 per share Other 490,910 $ 1.345 $ 660,273.95 $ 91.18
Carry Forward Securities
Carry Forward Securities

Total Offering Amounts:

$ 661,335.83

$ 91.27

Total Fees Previously Paid:

$ 91.18

Total Fee Offsets:

$ 0.00

Net Fee Due:

$ 0.09

Offering Note

1

(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.

2

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.

Table 2: Fee Offset Claims and Sources ☑Not Applicable
Registrant or Filer Name Form or Filing Type File Number Initial Filing Date Filing Date Fee Offset Claimed Security Type Associated with Fee Offset Claimed Security Title Associated with Fee Offset Claimed Unsold Securities Associated with Fee Offset Claimed Unsold Aggregate Offering Amount Associated with Fee Offset Claimed Fee Paid with Fee Offset Source
Rules 457(b) and 0-11(a)(2)
Fee Offset Claims
Fee Offset Sources
Rule 457(p)
Fee Offset Claims
Fee Offset Sources
Table 3: Combined Prospectuses ☑Not Applicable

Security Type

Security Class Title

Amount of Securities Previously Registered

Maximum Aggregate Offering Price of Securities Previously Registered

Form Type

File Number

Initial Effective Date