Rambus Inc.
Supplemental Reconciliation of GAAP to Non-GAAP Results
(In thousands)
(Unaudited)

Three Months Ended

September 30,

2020

2019

Total operating expenses

$

54,151

$

67,698

Adjustments:

Stock-based compensation expense

(6,834)

(7,388)

Acquisition-related costs and retention bonus expense

(1,327)

(3,052)

Amortization of acquired intangible assets

(236)

(170)

Restructuring charges

—

(1,374)

Recovery of assets held for sale

—

1,853

Non-GAAP total operating expenses

$

45,754

$

57,567

Interest and other income (expense), net

$

878

$

4,230

Adjustments:

Interest income related to significant financing component from fixed-fee patent and technology
      licensing arrangements

(3,289)

(4,925)

Non-cash interest expense on convertible notes

1,823

1,725

Non-GAAP interest and other income (expense), net

$

(588)

$

1,030

Rambus Inc.
Reconciliation of GAAP Forward-Looking Estimates to Non-GAAP Forward-Looking Estimates
(In millions)
(Unaudited)

2020 Fourth Quarter Outlook

Three Months Ended

December 31, 2020

Low

Forward-looking operating costs and expenses

$

70.7

$

66.7

Adjustments:

Stock-based compensation expense

(7.0)

(7.0)

Amortization of acquired intangible assets

(4.6)

(4.6)

Forward-looking Non-GAAP operating costs and expenses

$

59.1

$

55.1

Forward-looking interest and other income (expense), net

$

0.1

$

0.1

Adjustments:

Interest income related to significant financing component from fixed-fee patent and technology
      licensing arrangements

(2.9)

(2.9)

Non-cash interest expense on convertible notes

1.8

1.8

Forward-looking Non-GAAP interest and other income (expense), net

$

(1.0)

$

(1.0)