|                                                                                                   |
|---------------------------------------------------------------------------------------------------|
|                                                                                                   |  |  |
| CALCULATION OF REGISTRATION FEE                                                                   |
| Title of Each Class of Securities Offered                                                         | Maximum Aggregate Offering Price (1) | Amount of Registration Fee(2) |
| MEDIUM-TERM NOTES, SERIES H, FLOATING RATE NOTES DUE 2017                                         | $250,000,000 | $25,175 |
| (1) Excludes accrued interest, if any.                                                            |   |   |
| (2) The filing fee is calculated in accordance with Rule 457(r) under the Securities Act of 1933. |

|                                                           |
|-----------------------------------------------------------|
|                                                           |  |  |
| PRICING SUPPLEMENT NO. 19                                 |   | Filed Pursuant to Rule 424(b)(3) |
| Dated May 13, 2016 to                                     |   | Registration No. 333-195039 |
| PROSPECTUS SUPPLEMENT                                     |   |   |
| Dated April 4, 2014 and                                   |   |   |
| PROSPECTUS                                                |   |   |
| Dated April 4, 2014                                       |   |   |
| CATERPILLAR FINANCIAL SERVICES CORPORATION                |
| MEDIUM-TERM NOTES, SERIES H, FLOATING RATE NOTES DUE 2017 |

|                                                                                                                                                                                                                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                                                                                                                                                                                                                                                           |  |  |
| SUBJECT                                                                                                                                                                                                                                                                                                                                                                                   |   | FINAL PRICING DETAILS |
| Issuer:                                                                                                                                                                                                                                                                                                                                                                                   |   | Caterpillar Financial Services Corporation |
| Title of Securities:                                                                                                                                                                                                                                                                                                                                                                      |   | Medium-Term Notes, Series H, Floating Rate Notes Due 2017 |
| Form of Security:                                                                                                                                                                                                                                                                                                                                                                         |   | Global Note |
| Format:                                                                                                                                                                                                                                                                                                                                                                                   |   | SEC Registered-Registration Statement Number 333-195039 |
| Trade Date/Pricing Effective Time:                                                                                                                                                                                                                                                                                                                                                        |   | May 13, 2016 |
| Settlement Date (Original Issue Date):                                                                                                                                                                                                                                                                                                                                                    |   | May 18, 2016 |
| Maturity Date:                                                                                                                                                                                                                                                                                                                                                                            |   | November 20, 2017 |
| Principal Amount:                                                                                                                                                                                                                                                                                                                                                                         |   | $250,000,000 |
| Price to Public (Issue Price):                                                                                                                                                                                                                                                                                                                                                            |   | 100.000% |
| Dealer’s Commission:                                                                                                                                                                                                                                                                                                                                                                |   | 0.125% (12.5 basis points) |
| All-in-price:                                                                                                                                                                                                                                                                                                                                                                             |   | 99.875% |
| Net Proceeds to Issuer:                                                                                                                                                                                                                                                                                                                                                                   |   | $249,687,500 |
| Interest Rate Basis (Benchmark):                                                                                                                                                                                                                                                                                                                                                          |   | 3 Month USD LIBOR |
| Index Currency:                                                                                                                                                                                                                                                                                                                                                                           |   | U.S. Dollars |
| Spread (Plus or Minus):                                                                                                                                                                                                                                                                                                                                                                   |   | +25 basis points (0.25%) |
| Spread Multiplier:                                                                                                                                                                                                                                                                                                                                                                        |   | N/A |
| Spread/Spread Multiplier Reset Option:                                                                                                                                                                                                                                                                                                                                                    |   | N/A |
| Optional Reset Dates (only applicable if option to reset spread or spread multiplier):                                                                                                                                                                                                                                                                                                    | N/A |
| Basis for Interest Rate Reset (only applicable if option to reset spread or spread multiplier):                                                                                                                                                                                                                                                                                           | N/A |
| Specified Currency:                                                                                                                                                                                                                                                                                                                                                                       |   | U.S. Dollars |
| Option to Elect Payment in U.S. Dollars  (only applicable if Specified Currency is other than U.S. Dollars):                                                                                                                                                                                                                                                                    | N/A |
| Authorized Denominations (only applicable if Specified Currency is other than U.S. Dollars):                                                                                                                                                                                                                                                                                              | N/A |
| Historical Exchange Rate (only applicable if Specified Currency is other than U.S. Dollars):                                                                                                                                                                                                                                                                                              | N/A |
| Maximum Interest Rate:                                                                                                                                                                                                                                                                                                                                                                    |   | N/A |
| Minimum Interest Rate:                                                                                                                                                                                                                                                                                                                                                                    |   | N/A |
| Initial Interest Rate:                                                                                                                                                                                                                                                                                                                                                                    |   | 3 Month USD LIBOR as of two (2) London Business Days prior to the Original Issue Date plus the Spread |
| Interest Reset Periods and Dates:                                                                                                                                                                                                                                                                                                                                                         |   | Quarterly on the 20th of February, May, August and November of each year prior to the Maturity Date |
| Interest Determination Dates:                                                                                                                                                                                                                                                                                                                                                             |   | Quarterly, two (2) London Business Days prior to each Interest Reset Date |
| Interest Payment Dates:                                                                                                                                                                                                                                                                                                                                                                   |   | Interest will be paid quarterly on the 20th of February, May, August and November of each year, commencing August 20, 2016 and ending on the Maturity Date |
| Stated Maturity Extension Option:                                                                                                                                                                                                                                                                                                                                                         |   | N/A |
| Extension Period(s) and Final Maturity Date (only applicable if option to extend stated maturity):                                                                                                                                                                                                                                                                                        | N/A |
| Basis for Interest Rate During Extension Period (only applicable if option to extend stated maturity):                                                                                                                                                                                                                                                                                    | N/A |
| Original Issue Discount Note:                                                                                                                                                                                                                                                                                                                                                             |   | N/A |
| Total Amount of OID:                                                                                                                                                                                                                                                                                                                                                                      |   | N/A |
| Terms of Amortizing Notes:                                                                                                                                                                                                                                                                                                                                                                |   | N/A |
| Redemption Date(s):                                                                                                                                                                                                                                                                                                                                                                       |   | N/A |
| Redemption Price:                                                                                                                                                                                                                                                                                                                                                                         |   | N/A |
| Repayment Date(s):                                                                                                                                                                                                                                                                                                                                                                        |   | N/A |
| Repayment Price(s):                                                                                                                                                                                                                                                                                                                                                                       |   | N/A |
| Day Count Convention:                                                                                                                                                                                                                                                                                                                                                                     |   | Actual/360 |
| Denominations:                                                                                                                                                                                                                                                                                                                                                                            |   | Minimum denominations of $1,000 with increments of $1,000 thereafter |
| Joint Lead Managers & Bookrunners:                                                                                                                                                                                                                                                                                                                                                    |   | Barclays Capital Inc. (23.34%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | J.P. Morgan Securities LLC (23.33%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Mitsubishi UFJ Securities (USA), Inc. (23.33%) |
| Co-Managers:                                                                                                                                                                                                                                                                                                                                                                              |   | BNY Mellon Capital Markets, LLC (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Commerz Markets LLC (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Deutsche Bank Securities Inc. (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | HSBC Securities (USA) Inc. (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Itau BBA USA Securities, Inc. (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Loop Capital Markets LLC (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | KBC Securities USA, Inc. (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Mizuho Securities USA Inc. (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Standard Chartered Bank (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Wells Fargo Securities, LLC (3.00%) |
|                                                                                                                                                                                                                                                                                                                                                                                      |   | Standard Chartered Bank will not effect any offers or sales of any notes in the United States unless it is through one or more U.S. registered broker-dealers as permitted by the regulations of FINRA. |
| Billing and Delivery Agent:                                                                                                                                                                                                                                                                                                                                                               |   | Mitsubishi UFJ Securities (USA), Inc. |
| Exchange Rate Agent:                                                                                                                                                                                                                                                                                                                                                                      |   | U.S. Bank Trust National Association |
| Calculation Agent:                                                                                                                                                                                                                                                                                                                                                                        |   | U.S. Bank Trust National Association |
| CUSIP:                                                                                                                                                                                                                                                                                                                                                                                    |   | 14912L6S5 |
| Other Terms:                                                                                                                                                                                                                                                                                                                                                                              |   | Supplemental United States Federal Income Tax ConsiderationsPursuant to Treasury regulations and other published guidance, Foreign Account Tax Compliance Act (FATCA) withholding (as described in the prospectus supplement under the caption entitled “Certain United States Federal Income Tax Consequences—Non-United States Holders—Foreign Account Tax Compliance”) currently applies to interest payments made on the notes and is expected to apply to payments of gross proceeds from the sale or other disposition of the notes after December 31, 2018.Notice to Prospective Investors in Canada The notes may be sold only to purchasers in Canada purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the notes must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this pricing supplement, the accompanying prospectus supplement and the accompanying prospectus (including any amendment thereto) contain a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (NI 33-105), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding conflicts of interest in connection with this offering. |
| CAPITALIZED TERMS USED HEREIN WHICH ARE DEFINED IN THE PROSPECTUS SUPPLEMENT SHALL HAVE THE MEANINGS ASCRIBED THERETO IN THE PROSPECTUS SUPPLEMENT. THE INTEREST RATES ON THE NOTES MAY BE CHANGED BY CATERPILLAR FINANCIAL SERVICES CORPORATION FROM TIME TO TIME, BUT ANY SUCH CHANGE WILL NOT AFFECT THE INTEREST RATE ON ANY NOTES OFFERED PRIOR TO THE EFFECTIVE DATE OF THE CHANGE. |