MAGNITE, INC. — Director's Dealing 2016

Feb 18, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RUBICON PROJECT, INC. (RUBI)
CIK: 0001595974
Period of Report: 2016-02-16

Reporting Person: TAPPIN TODD L (CFO & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-02-16	Common Stock	S	5625	$12.38	Disposed	344139	Direct
2016-02-17	Common Stock	A	48889	$0.00	Acquired	393028	Direct
2016-02-17	Common Stock	A	73333	$0.00	Acquired	466361	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-02-17	Stock Option (right to buy)	$13.16	A	56286	Acquired	2026-02-01	Common stock (56286)	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in order to cover the reporting person's tax liability incurred upon the vesting of the reporting person's restricted shares.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.12 to $12.56, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in footnote (2) to this Form 4.

F3: Represents shares of restricted stock that vest as follows: (a) 15,277 shares on May 15, 2017; (b) 6,111 shares on November 15, 2017; (c) 6,112 shares on May 15, 2018; (d) 6,111 shares each November 15 and May 15 thereafter until November 15, 2019; and (e) 3,056 shares on May 15, 2020.

F4: Granted as compensation for services.

F5: Represents shares of restricted stock tied to the Issuer's market price ("Market Stock Awards" or "MSAs"). The MSAs vest upon certification by the Board or Compensation Committee of the Issuer promptly following the Measurement Date for the MSAs, which is the first to occur of (i) February 1, 2019, (ii) the effective date of a Sale Transaction (as defined in the Severance Agreement between the Issuer and the reporting person to include various change in control transactions), or (iii) the date of termination of the reporting person's continuous service as a result of an involuntary termination, death, or disability. On the vesting date, the MSAs will vest with respect to the number of shares of the issuer's common stock, consisting of none, some, or all of the total shares issued, determined as the product obtained by multiplying the Performance Factor times the Target Shares as of the Measurement Date.

F6: (Continued from Footnote 5) Initial Target Shares are two-thirds of the total number of MSAs issued, subject to pro-rata reduction for partial time served if the reporting person's continuous service terminates as a result of death, disability, involuntary termination not in connection with a Sale Transaction, or voluntary termination initiated by the reporting person. If the Calculated Quotient is less than 50%, the Performance Factor is zero, resulting in no vesting. If the Calculated Quotient is more than 150%, the Performance Factor is 150%. If the Calculated Quotient is at least 50% but not more than 150%, the Performance Factor is equal to the Calculated Quotient. For this purpose, the "Calculated Quotient" is obtained by dividing the 20-day trailing average closing price for the Issuer's common stock as of the Measurement Date by the 20-day trailing average closing price for the issuer's common stock as of the issuance date.

F7: 25% of the stock options will vest on February 1, 2017 and the remaining option shares will become exercisable in 36 equal installments each calendar month thereafter.