Exhibit

Marketers aspire to coin catch phrases that capture great emotion and expand brand influence into welcomed but untargeted domains -“Where’s the beef?” Reality suggests they defy an engineered approach and resonate or not much like a viral video. In some small way we may have created a contender in 2015 with “Sprinkles are for Winners,” a pithy ending to one of our commercials where the character Jamie has been unable to present Progressive as the lowest price option to a customer, recognizing an alternative was for the moment lower. As Flo consoles his disappointed state, but recognizes the transparency of our approach, he’s offered ice cream; when sprinkles are requested the reality sets in that certain spoils do in fact go to the victor and hence “Sprinkles are for Winners” took on a life of its own. Used in everything from song lyrics to sports team mantras, we found an accidental host of untargeted but welcome extensions. Equally welcome is the opportunity to describe Progressive’s business year as deserving of Sprinkles, and I’ll enjoy breaking that down in some detail in this letter, along with our efforts and outlook to ensure the accolade remains relevant for a long time to come.

We added $1.9 billion in net premiums written to top $20 billion in 2015-a 10% growth rate over 2014, with net premiums earned just short of that mark. Operating profitability reflected in our combined ratio was a very solid 92.5, comfortably ahead of our 96 target and comparable to last year’s performance. Together these results produced a pretax operating income of $1.5 billion, about 6% ahead of similarly strong results last year. Investment returns were less notable on an absolute basis, but within our design parameters represent a considerably stronger relative performance-ice cream, perhaps no sprinkles. We added $455 million of interest and dividend income, up 11% from last year, $113 million in realized gains, half of last year’s, and a less exciting $324 million unrealized loss for the year, reflecting about a 1.6% total return on our $21 billion portfolio.

The $20 billion threshold, deservedly so, had special meaning within the company and for many we re-experienced the same pride when passing both the $1 and $10 billion marks and now immediately set our sights on the next significant round number. To be fair, the growth this year, while very solid from year-over-year organic expansion, was aided by the inclusion of nine months of the property premium from ASI-the controlling interest acquisition we closed in April.

I’ve stated before that we would welcome an improved investment environment with interest rates and valuations more comfortably matching our longer-term investment income preference, and perhaps a little less volatility for good measure, but by design we are not dependent on it and our commitment to an investment strategy that supports and enhances the primary asset of the operating company remains central to our long-term thinking.

Gainshare, our best measure of companywide operating performance, valued in a range between 0 and 2, completed the year at 1.6, the highest in some time, and for me a fair and accurate reflection of the year with notable strengthening in the second half and, even more importantly, carrying attractive momentum forward into 2016. Gainshare is the basis for variable compensation for Progressive people and shareholders. Our variable dividend formulation met all criteria required to be declared and based on our post-tax underwriting income and the Gainshare score, we declared a dividend of 89 cents per share, or an approximate yield of 2.8% at year end.

We enter 2016 with a strong, well-structured capital position, bolstered by the $400 million debt offering we completed earlier in the year. Our debt-to-total capital ratio ended the year around 27%, below our self-imposed guideline of not to exceed 30% for any extended period of time and thus preserving significant debt capacity should we need or choose to use it. Our capital management philosophy remains consistent with our long-standing view that capital in excess of regulatory requirements and any contingencies we can envision is available for share

repurchases, acquisitions, or shareholder dividends. Our share repurchases during the year were somewhat modest, at 7.3 million shares, in part due to a stronger performance of our stock. The ARX transaction, discussed in greater detail in last year’s letter, consumed $877 million, and the shareholder dividend for 2015 performance happily returned $519 million to our shareholders.

With no great joy, at this time last year, I characterized our Agency auto growth as flat-out disappointing and suggested it had our full attention and that our commitment to winning in the channel should not be underestimated. More so after such a statement, it’s rewarding when planned actions and results align to tell a more favorable story. Our Agency business found a higher gear in the second half of the year and has sustained momentum through year-end with expectations of continuing into 2016. What changed? We executed on a multi-point agenda to address opportunities, much of which we outlined in our Investor meeting in May. The details are not for now, but headlines include a significant advance in product design as we continually use our best data and knowledge to meet competitive market demands and a demonstrably improved bundling option for agents as we deepen our relationship with our ASI property solution. We’ve reversed the erosion in policy counts we’d not enjoyed reporting during the year, while advancing premium growth. Our new business inflow developed during the course of the year into some of the strongest we have seen in recent times, suggesting that in the incredibly price efficient agency market our product is attractive, and our loss results provide support that the rate level is for now sustainable-a considerably stronger positioning we look forward to building upon.

While not yet a massive contribution to the Agency results, strategically a highlight of 2015 was the market introduction of Platinum. Platinum, in its simplest form, is the integration at the market level of ASI and Progressive’s product lines. The multi-provider approach to homeowners that works so well for us in our Direct business is simply not an option within the Agency channel, and with ASI we have the perfect combination. The product provides agents a single offering, with compensation and coordinated policy periods, along with other features, that reflect the needs and desires of agents that we are now very well suited to address. The product is by design focused on those agents who have the target customers and are prepared to accept the proposition that ASI and Progressive, with this introduction and what is sure to follow, will be a “must have” bundled offering in their agency. Our excitement is obvious for the growth potential, and the engagement we can have with agents in our development of the Destination Era, outlined more fully in this communication last year. However, perhaps most importantly for those of us who enjoy the science of rating, this will provide a data set of customers for whom we have had limited prior auto history and thus presents an incredible opportunity as we do what we do best-use that data to refine and improve our offering over the years ahead. Early results are just that, but very encouraging would be a fair assessment.

Building on a strong 2014, our Direct channel had what might be described in sports terms as back-to-back winning years. With low double-digit premium growth rates, and just short of double-digit unit growth, there is little to be upset about-not suggesting that outside the scope of this letter we don’t have our wish list. Taking advantage of market opportunities to grow also means we will run our combined ratio, reflecting new business loss costs and front loaded acquisition costs, much closer to our acceptable maximum and the combination of a 95.1 combined ratio with 11% written premium growth proved to be a strong combination of profit and growth for the year and one I would readily sign-up for again.

that is at our core. We have, however, developed considerable expertise in marketing creative and placement, consumer experience and presentation, along with the economics of acquisition and customer life expectancy. Less by any designed outcome, but more a reflection of consumer choice and technology, our Direct channel and Agency channel for auto are now about equally balanced. Metrics of premium and units will produce slightly different allocations, but an equal split of the auto business is a reasonable way to think, and we’re confident we can continue to grow in both distributions. Our Special Lines and Commercial Lines businesses are considerably more agent favored, but are well positioned for any similar trends.

Special Lines had a great year with loss costs slightly lower than expectation, absent a major storm or hurricane to cause havoc with our boats or even recreational vehicles. Given our significant market share in motorcycle and the other products within this grouping, we don’t expect outsized growth and enjoyed the 3% or so growth in the product line and look forward to any effects of a recovering economy and reduced gas prices to fuel additional discretionary “toy” purchases in future years.

Our Commercial Lines business gets the award for outsized performance this year. Strong mid-teen growth and a combined ratio of 84 certainly is a rare combination and contributed significantly to our aggregate results for the year. Now just north of $2 billion in written premium, Commercial is fully 10% of the enterprise and, at that premium, we’re expecting when industrywide results are tabulated that we may be adding commercial auto to the list of products with a #1 market share designation. While the story leading to these results has played out over several years, the essential message is when results are not what you want, act with purpose and ensure profitability before growth. The Commercial group did exactly that and by the time we were operating with rate levels that were more reflective of market conditions, we found that others having less comfort with their rates were limiting their market involvement and our extraordinary results followed. Market dynamics and competition are our constant gravity, and we expect these results to become more consistent with our long-term targets over time, but appreciate when opportunity knocks, to expand our influence in this important part of our business.

Regardless of the specific product, our organizational imperative is to continuously improve our ability to segment customers into smaller homogeneous groups and advance our ability to best match expected loss costs to those groupings. Over time those groupings have become more and more complex and may now be defined, in part, by driving behaviors, such as hard braking, or technology preferences for policy quoting or servicing. The ability to do this well is at the heart of any success we may have had and made possible with people who enjoy doing so and finding relationships in data that could provide yet marginal improvements to an age old concept. Data is our central asset, and our ability to analyze data, now in some cases in massive quantities, and find correlations and causal relationships, is the Progressive statistics factory I often describe to those outside our industry.

Consumer sensitivity to changes in their insurance premium is for many very high. Consistent with our desire to keep customers a long time, we want to be sure that any rate change is needed, surgical, and, where possible, smaller in magnitude, even to the point of several smaller changes over time, which are appreciated more than a singular adjustment. As illustrative examples of our commitment to advancing rating science and achieving that objective, we have developed significant ability, by ingesting weather data from hundreds of monitoring stations around the U.S. several times an hour, to help recognize the difference between an observed weather influence and an expected weather influence in an attempt to ensure we do not let a more obvious rationale for elevated loss costs disguise a more substantial trend that needs to be addressed, or equally important resist reacting to a false positive for rate need. An accurate historical perspective has come into play more than once in this El Niño year. Similarly, with a longer-term trend toward lower frequency, intermittent increases in frequency trends need to be explained in some detail to respond appropriately. This year we experienced much more favorable pricing for gasoline and numerous sources confirmed increased mileage resulted. We were in a position to use a significant sample of our Snapshot^® users to more accurately understand the types of mileage increases and associated frequency, effectively in real-time versus delayed and aggregated reporting sources. The specifics here are less the point to be made and much more so the value of data and an ability to have that data be converted into a commercial advantage. We don’t intend to stop looking for opportunities anytime soon and expect to carry that forward into our Destination Era product line up.

group is focusing on the types of issues that will advance the company versus fixing in-place processes, and that’s a foundation that makes all we expect to achieve possible. Our expense ratio of 20% is an attractive position relative to the industry and in no small way contributes to our success, without restricting the ability of each group to create experiences that foster long-term promoters with confidence in us. Accepting that, we see opportunities for yet greater leverage, in large part through longer customer relationships.

Media consumption, and a shift to more addressable media in forums other than network television, will both attract more of our acquisition budget and provide far greater ability to analyze yield and spending effectiveness for those suited to the newer models. Advancing our brand, more so to the right audiences, is critical to the future we see for Progressive in the Destination Era and we’re excited by the prospects.

Car ownership or temporary vehicle use options, headlined by names like Zipcar to Uber, will challenge the foundations of driver-to-car matching, which, while not perfect in current schemas, is not as widely variant as we must accept as possible in the future. We enjoy embracing change and the potential for new products and will look for ways to avoid putting square pegs in rounds holes, rather taking opportunities available for us to lead in designing solutions more responsive to contemporary realities.

Vehicle technology is certain to challenge the notion of driving we’ve held for the last hundred years or so and, as such, we must position Progressive to be advantaged in the product shifts and opportunities that will surely follow. Recognizing vehicles as moving IP addresses and being in the data flow was an early and remains an ongoing objective, and our Snapshot offering is exactly that. We remain very excited by our Snapshot program and have even higher hopes in 2016 of reaching a greater proportion of our policyholder base, with the introduction of a smartphone application capable of meeting the data integrity standards we have been seeking for several years. Long-term accident frequency reduction has been a fact of life for our industry for the last 30 plus years, with great societal value. The outlook with current and expected vehicle technology features, up to and including autonomous features, is for continued reductions. We must be intensely focused on our segmentation science and assigning pricing accurately during what will be a long period of mixed-mode technology vehicles on the road. Disruptive change we believe will play well to our strengths for a long time to come.

Accepting change can be a catalyst for Progressive to grow; it’s equally rational to accept that premium per vehicle could decline, potentially materially-interestingly enough that has not been the case to date with claims costs more than offsetting the frequency declines over many years; however, I’m only prepared to accept that outcome as one of several that seem possible. I do, however, sense that new “insurance” products will develop alongside the changes in vehicle technology (who might have envisioned a sizable market in cell phone insurance 15 years ago or the need for cyber insurance?). Progressive will be true to its name in managing change to our immediate advantage and positioning for longer-term shifts as they eventuate.

A feature of this report and last year’s letter was the evolution of Progressive through eras described as Manufacturing/Wholesaling, to Retail, and now to the consumer centric Destination Era. The substance of the Destination Era gained additional and significant institutional energy in 2015 with every area of the company examining in greater depth the operating and systems implications needed to execute in that model with the same intensity we’ve attained in our core products. Now, with bonafide solutions to meet consumer needs beyond the initial auto insurance product, we have positioned Progressive to meaningfully address the lifetime needs of customers. They can now look to us for protection products including all property needs, umbrella, flood, classic car, special event, travel, pet, life, ID protection, and more. Historically, we didn’t have these assets and thus were less well positioned to keep the continuity of relationship that so often starts with an auto insurance purchase, but develops into a broader product array. Simple models are just that, but the customer label of “Robinsons” for us is reflective of the customer with home and auto insurance, and often a selection of one or more other products suited to their life style. Referenced internally as Auto+, our nomenclature is a fitting designation for the positioning and

We’ve reported that we under index on Robinsons and over index, relative to our aggregate market share, on those in life stages leading toward a more Robinson-like status. Graduating the future Robinsons, we believe, is highly rational given our advantaged position of a brand that has shown appeal to new buyers, the positive first product experience we provide, and now a product line-up that encourages continuity of relationship as their needs expand. Again a simple model, but highly reflective of our positioning, is to think: Acquire, Anchor, Bundle, and Extend. Acquire-enhance the brand appeal in every way we do business; Anchor-a great first product experience often through auto; Bundle-be responsive to individual life lanes and add product needs seamlessly; Extend-an optimal state for both the customer and Progressive. By retaining customers for decades and attracting those Robinsons who find our proposition compelling, implies for us a significant addition to our addressable market, perhaps as much as 50% for just the auto product, and more so with our entry into the property market and recognition of the Commercial Lines analogue to the Destination Era. Auto and Property are the lion’s share of the personal lines property and casualty insurance premium base, but other products are important complements when needed for long-term retention. Our focus on auto insurance and the skills we have honed will certainly be central to our business model for as far forward as anyone can reasonably see, but our business model is without question evolving toward being a contemporary solution for our customers with a wider aperture and greater diversification of insurance products.

Our product requirements to execute effectively in the Destination Era are expansive and we don’t intend to manufacture them all, but rather “rent” both the capital and expertise from those who are leaders in their field. In some cases a single product provider will be the desired solution-ASI in the Agency channel for Property is a perfect example, along with our classic car solution for Direct customers with Hagerty Insurance, in our minds the leader in the space-or we may seek diversification within a product line to meet the broadest range of situations, such as the line-up of homeowners providers in the Direct channel. We have marketing opportunities through our agents, our online presence, and a greatly expanded in-house agency to offer customers greater access to the products they seek and have opportunities for presentation, relationship building, and “just-in-time” marketing, all expanding our repertoire of customer experiences. We will take indemnity risk and use our capital where it makes sense to do so and receive commission income on other products where that's more appealing. As time and experience develops, we may offer other combinations that are also mutually appealing. Noted last year and worth reinforcing, Progressive is becoming a consumer company with auto insurance at its core and the currency of success is customer life expectancy (an appropriate restatement of the earlier positioning of policy life expectancy).

The times they are a-changin-not quite “Sprinkles are for Winners,” but a Dylan lyric no one would readily reject-and Progressive’s adaption to those changes embodied in our Destination Era’s positioning provides for us a gamut of challenges, but equally, for me, the feeling of never being more optimistic about what lies ahead. (A feeling I’ve been lucky enough to experience more than a few times in Progressive’s evolution as a company).

Our Vision, Values, and Objectives are the bedrock of the Progressive culture. The Vision and Mission affirm our benefit to society and drive our aspiration to be consumers’ number one choice for auto and other insurance needs. Our Values unambiguously guide behavior. Demanding Objectives attract and retain special people who enjoy working hard, performing well, being rewarded competitively, and growing constantly.