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¨	Definitive Additional Materials

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¨	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

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•	Create and reinforce our pay-for-performance culture;

•	Align the interests of management with our shareholders;

•	Attract, retain and motivate executive talent by providing competitive levels of salary and targeted total pay;

•	Provide incentive compensation that promotes desired behavior without encouraging unnecessary and excessive risk; and

•	Integrate with our performance management process of goal setting and formal evaluation.

•	Annual adjusted revenue of $2,232 billion, an increase of 9.0% compared to prior year;

•	Adjusted Earnings Before Interest Tax Depreciation and Amortization of $518 million, an increase of 19.4% compared to prior year;

•	Available Cash Flow of $330 million, an increase of 16.5% compared to prior year;

•	Adjusted earnings per share of $3.18, an increase of 7.8% compared to prior year; and

•	Total shareholder return of 54.9% for the 2014 - 2016 performance period, which falls into the 84th percentile of the S&P Capital Goods Index.

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•	Create and reinforce our pay-for-performance culture;

•	Align the interests of management with our shareholders;

•	Attract, retain and motivate executive talent by providing competitive levels of salary and targeted total pay;

•	Provide incentive compensation that promotes desired behavior without encouraging unnecessary and excessive risk; and

•	Integrate with our performance management process of goal setting and formal evaluation.

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(a)	Audit Fees for the fiscal years ended December 31, 2015 and 2016 were for professional services rendered for the audits of our annual consolidated financial statements, including statutory audits.

(b)	Audit-Related Fees for the fiscal years ended December 31, 2015 and 2016 consist of assurance services that are related to performing the audit and review of our financial statements. Audit-Related Fees for the fiscal year ended December 31, 2016 also includes employee benefit plan audits and verification reports and other services.

(c)	The Tax Fees for the fiscal years ended December 31, 2015 and 2016 relate to consulting services.

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•	selecting, monitoring, evaluating and compensating senior management;

•	assuring that management succession planning is ongoing;

•	overseeing the implementation of management’s strategic plans and capital allocation strategy;

•	reviewing our financial controls and reporting systems;

•	overseeing our management of enterprise risk;

•	reviewing our ethical standards and compliance procedures; and

•	evaluating the performance of the Board of Directors, Board committees and individual directors.

•	Chair the meetings of the independent directors when the Chairman is not present;

•	Ensure the full participation and engagement of all Board members in deliberations;

•	Lead the Board of Directors in all deliberations involving the CEO’s employment, including hiring, contract negotiations, performance evaluations and dismissal;

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•	Counsel the Chairman on issues of interest/concern to directors and encourage all directors to engage the Chairman with their interests and concerns;

•	Work with the Chairman to develop an appropriate schedule of Board meetings and approve such schedule, to ensure that the directors have sufficient time for discussion of all agenda items, while not interfering with the flow of Company operations;

•	Work with the Chairman to develop the Board and Committee agendas and approve the final agendas;

•

Keep abreast of key Company activities and advise the Chairman as to the quality, quantity and timeliness of the flow of information from Company management that is necessary for the directors to effectively and responsibly perform their duties; although Company management is responsible for the preparation of materials for the Board of Directors, the Lead Director will approve information provided to the Board and may specifically request the inclusion of certain material;

•	Engage consultants who report directly to the Board of Directors and assist in recommending consultants that work directly for Board Committees;

•	Work in conjunction with the Corporate Governance and Nominating Committee in compliance with Governance Committee processes to interview all Board candidates and make recommendations to the Board of Directors;

•	Assist the Board of Directors and Company officers in assuring compliance with and implementation of the Company’s Corporate Governance Guidelines; work in conjunction with the Corporate Governance Committee to recommend revisions to the Corporate Governance Guidelines;

•	Call, coordinate and develop the agenda for and chair executive sessions of the Board’s independent directors; act as principal liaison between the independent directors and the CEO;

•	Work in conjunction with the Corporate Governance and Nominating Committee to identify for appointment the members of the various Board Committees, as well as selection of the Committee chairs;

•	Be available for consultation and direct communication with major shareholders in coordination with the CEO;

•	Make a commitment to serve in the role of Lead Director for a minimum of three years; and

•	Help set the tone for the highest standards of ethics and integrity.

•	The Audit and Finance Committee oversees risks associated with our systems of disclosure controls and internal controls over financial reporting, our compliance with legal and regulatory requirements and risks associated with foreign exchange, insurance, credit and debt. The Audit and Finance Committee also oversees risks related to information technology, data privacy and cyber security.

•	The Compensation Committee considers risks related to the attraction and retention of talent and risks related to the design of compensation programs and arrangements.

•	The Corporate Governance and Nominating Committee oversees risks associated with our governance policies and practices as well as sustainability.

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•	The value of the annual grant of RSUs increases from $70,000 to $100,000;

•	The Compensation Committee Chair cash retainer increases from $10,000 to $12,000;

•	The Corporate Governance and Nominating Committee chair cash retainer increases from $8,000 to $10,000; and

•	The initial grant of RSUs is eliminated from the program.

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(a)	The amount represents the aggregate grant date fair value of the annual grant of RSUs to non-employee directors, computed in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 718. As of December 31, 2016, each non-employee director held 1,025 RSUs.

(b)	The aggregate amount of perquisites and other personal benefits received by each of our non-employee directors in 2016 was less than $10,000.

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•	Executive Summary

•	Compensation Philosophy and Design Principles

•	How We Make Compensation Decisions

•	Compensation Elements

•	2016 Compensation Structure Decisions

•	2016 Incentive Program Designs and Compensation Values for 2016 Performance

•	2017 Compensation

•	Other Compensation and Tax Matters

*	Ms. Moretti is paid in Euros. The U.S. Dollar (“USD”) amounts above are shown as of April 2016 based on the Euro to USD exchange rate at that time.

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•	Are similar to us in terms of certain factors, including one or more of the following: size (i.e., revenue, market capitalization and growth characteristics), industry, lifecycle stage, and global presence;

•	Have NEOs whose scope of responsibilities are comparable in terms of breadth and complexity; and

•	Compete with us for executive talent.

*	ADT, Checkpoint Systems and Nortek were acquired and are no longer public companies. Armstrong World Industries spun-off a portion of its business and is no longer considered a similar comparison.

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*	Ms. Moretti’s base salary was not increased for 2016. The USD amounts above are shown as of April of the applicable year based on the Euro to USD exchange rate on that day. The difference between 2015 and 2016 solely reflects the fluctuation in the exchange rate.

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*	The amounts for Ms. Moretti are based on the Euro to USD exchange rate in February 2017.

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*	Results are interpolated between percentiles achieved. The Compensation Committee retains the authority and discretion to make downward adjustments to the calculated PSU award payouts, either as a percentage or a dollar amount, or not to grant any award payout regardless of actual performance against pre-established goals.

**	EPS is calculated in accordance with GAAP, subject to adjustment by the Compensation Committee based on pre-approved categories.

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*	EPS was adjusted to eliminate the impact of (i) mergers and acquisitions activity, (ii) accounting changes, (iii) restructuring, (iv) sales of marketable securities, and (v) an impairment charge related to a divestiture.

*	Ms. Moretti is paid in Euros. The USD amounts above are shown as of February 2017 based on the Euro to USD exchange rate at that time.

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(a)	A portion of a participant’s annual salary may be deferred into a number of investment options under our EDCP. In 2016, no NEO deferred any salary.

(b)

The amounts shown in this column reflect the aggregate grant date fair value of PSU awards and any RSU awards granted for the year under ASC Topic 718 and do not reflect amounts paid to or realized by the NEOs. In determining the aggregate grant date fair value of the PSU awards, the awards are valued assuming target level performance achievement. If the maximum level performance achievement is assumed, the aggregate grant date fair value of the PSU awards granted in 2016 would be as follows:

(c)

The amounts in this column reflect the aggregate grant date fair value of stock option grants for financial reporting purposes for the year under ASC 718 and do not reflect amounts paid to or realized by the NEOs. For a discussion of the assumptions made in determining the ASC 718 values, see Note 15, “Share-Based Compensation,” to our consolidated financial statements contained in the 2016 Form 10-K.

(d)	This column reflects the amounts earned as annual awards under our AIP program. Unless deferred into the EDCP, AIP awards are paid in cash. Mr. Petratis elected to defer 50% of his AIP payment. Amounts shown in this column are not reduced to reflect deferrals of AIP awards into the EDCP.

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(e)

Amounts reported in this column reflect the aggregate increase in the actuarial present value of the benefits under the qualified Pension Plan (the “Pension Plan”), Supplemental Pension Plan, KMP and EOSP, as applicable. The increase in pension benefits value is attributable to the additional year of service and age, the annual AIP award and any annual salary increase and any changes in the interest rates used to value the benefits. The plans do not permit above-market or preferential earnings on any nonqualified deferred compensation.

(f)	The following table summarizes the components of this column for 2016:

(1)	Represents matching contributions under our ESP and Supplemental ESP plans for Messrs. Petratis, Shannon, Braun and Eckersley, and contributions under the Italian Providential fund for Ms. Moretti.

(2)	Represents tax equalization provided to Ms. Moretti to mitigate the impact of being required to live in a high tax jurisdiction and the tax assistance provided by the Company for the additional tax owed as a result of the income imputed from the tax equalization payment for 2015 and 2016.

(3)	The other benefits the NEOs received in 2016 are:

(i)	Represents the actual cost of the hired aircraft.

(ii)	Represents (a) the incremental cost of the leased cars, calculated based on the lease, insurance, fuel and maintenance costs for all NEOs; (b) financial counseling services; and (c) executive health program.

(g)

Cash amounts for Ms. Moretti were paid in Euros. For reporting purposes, these amounts have been converted from Euro to United States dollars in this table and throughout this Proxy Statement. Where amounts are reported as a point in time, Euros were converted to United States dollars using the closing currency exchange rate as of December 31, 2016. Where payments were made throughout the year, Euros were converted to United States dollars using the closing currency exchange rate as of the last day of the month in which the cash compensation was received or deemed to have been received.

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(a)

The target award levels for the AIP program were established by the Compensation Committee in February 2016. Refer to Compensation Discussion and Analysis under the heading “Annual Incentive Program” for a description of the Compensation Committee’s process for establishing AIP program award levels. The amounts reflected in the “Estimated Future Payouts Under Non-Equity Incentive Plan Awards” columns represent the threshold, target and maximum amounts for awards under the AIP program. The amounts shown in the threshold, target and maximum columns reflect the range of potential payouts when the target award levels were established in February 2016 for the 2016 performance period. The AIP pays $0 for performance

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(b)

The amounts reflected in the “Estimated Future Payouts Under Equity Incentive Plan Awards” columns represent the threshold, target and maximum amounts for PSU awards for the 2016-2018 performance period. PSUs are granted under the 2013 Stock Plan. The PSUs pay $0 for performance below threshold. For a description of the Compensation Committee’s process for establishing PSU target award levels and the terms of PSU awards, please refer to Compensation Discussion and Analysis under the heading “Long-Term Incentive Program” and the “Post-Employment Benefits” section below.

(c)	The amounts in these columns reflect the stock option and RSU awards granted in February 2016 under the 2013 Stock Plan. For a description of the Compensation Committee’s process for determining stock option and RSU awards and the terms of such awards, see Compensation Discussion and Analysis under the heading “Long-Term Incentive Program” and the “Post-Employment Benefits” section below.

(d)	The 2013 Stock Plan requires stock options to be granted at an exercise price equal to the fair market value of our ordinary shares on the date of grant. The fair market value is defined as the average of the high and low price of our ordinary shares listed on the NYSE on the grant date.

(e)

The grant date fair value of the equity awards granted in 2016 was calculated in accordance with ASC 718. We caution that the actual amount ultimately realized by each NEO from the stock option awards will likely vary based on a number of factors, including stock price fluctuations, differences from the valuation assumptions used and timing of exercise or applicable vesting. For a description of the assumptions made in valuing the equity awards see Note 15, “Share-Based Compensation” to our consolidated financial statements contained in its 2016 Form 10-K. For PSUs, the grant date fair value has been determined based on achievement of target level performance.

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(a)	These columns represent stock option awards. These awards become exercisable in three equal installments beginning on the first anniversary after the date of grant, subject to continued employment or retirement.

(b)	Stock option awards granted prior to December 1, 2013 expire on the tenth anniversary (less one day) of the grant date. Stock option awards granted following December 1, 2013 expire on the tenth anniversary of the grant date.

(c)

This column represents unvested RSUs. Except as described in the following sentence, RSUs become exercisable in three equal installments beginning on the first anniversary after the date of grant, subject to continued employment or retirement. Ms. Moretti’s grant dated April 8, 2015 vests 100% of the third anniversary of the grant date and Mr. Eckersley’s grant of 17,287 RSUs on February 16, 2016 vests 50% on December 31, 2018 and 50% on December 31, 2020.

(d)	The market value was computed based on $64.00, the closing market price of our ordinary shares on the NYSE at December 30, 2016.

(e)

This column represents unvested and unearned PSUs. PSUs generally vest upon the completion of a three-year performance period. The receipt of the shares subject to the award is subject to achievement of the performance goals as certified by the Compensation Committee, and continued employment. The PSUs for the 2014-2016 performance period are reflected at the maximum level. The other PSUs are reflected at the target level because we currently believe that is the probable outcome of the performance conditions.

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(a)

Under the EOSP or the KMP, for officers covered prior to May 19, 2009 by Ingersoll Rand, a full year of service is credited for any year in which they work at least one day. In the Pension Plan, the Supplemental Pension Plan, the EOSP and the KMP for officers first covered on or after May 19, 2009 by Ingersoll Rand, the number of years of credited service is based on elapsed time (i.e., credit is given for each month in which a participant works at least one day).

(b)

The amounts in this column reflect the estimated present value of each NEO’s accumulated benefit under the plans indicated. The calculations reflect the value of the benefits assuming that each NEO was fully vested under each plan. The benefits were computed as of December 31, 2016, consistent with the assumptions described in Note 12, “Pensions and Postretirement Benefits Other than Pensions,” to our consolidated financial statements contained in the 2016 Form 10-K.

(c)	Mr. Braun and Ms. Moretti do not participate in any Company defined benefit plan.

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(a)	The annual deferrals (salary and AIP awards) are all reflected in the Salary column, the Non-Equity Incentive Plan column and the Stock Awards column, respectively of the Summary Compensation Table.

(b)	The amounts in this column are included in the All Other Compensation column of the Summary Compensation Table.

(c)	This column represents gains and losses on investments, as well as dividends on ordinary shares or ordinary share equivalents. The earnings or losses reported in this column are not included in the Summary Compensation Table.

(d)	In 2015, Mr. Petratis received $206,151 in Registrant Contributions under the Supplemental ESP, $43,846 more than the amount reported in the prior year’s proxy statement. The amounts reported in the “Aggregate Balance at Last Fiscal Year End” column and in footnote (f) below include this corrected amount.

(e)	Ms Moretti does not participate in any Company non-qualified deferred compensation plan.

(f)	This column includes the following amounts reported in the Summary Compensation Table in the current and prior years.

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•	death or disability, RSUs and stock options shall immediately vest and the stock options remain exercisable for a period of three years;

•	retirement, RSUs (other than Mr. Eckersley’s special grant in 2016) and stock options shall continue to vest in accordance with their original vesting schedule and the stock options remain exercisable for a period of five years;

•	group termination, RSUs and stock options immediately vest in the portion of the awards that would have vested within twelve months of termination and all vested stock options remain exercisable for a period of three years following termination;

•	retirement, group termination or job elimination, PSUs vest pro-rata based on the time worked during the performance period and the achievement of performance goals through the end of the performance period; and

•	death or disability, PSUs vest pro-rata based on target level performance during the performance period.

•	any accrued but unpaid base salary;

•	an amount equal to the NEO’s target annual bonus for the year in which the termination occurred, pro-rated for the months of service and based on the Company’s actual performance for the year; and

•	a lump sum severance payment equal to the three times (CEO) or two times (other NEOs) the sum of:

▪	the NEO’s annual salary in effect on the termination date, or, if higher, the annual salary in effect immediately prior to the event that constitutes “good reason”; and

▪	the NEO’s target annual incentive award for the year of termination.

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(a)	Refer to the description of how severance is calculated in the section above entitled Post-Employment Benefits.

(b)	Amounts represent the actual award earned for the 2016 performance period.

(c)	For “Involuntary Without Cause,” this assumes group termination or job elimination. For the “Change in Control,” “Death” and “Disability,” these amounts represent the full value of the Founder’s PSU award and a pro-rata portion of the other outstanding PSUs. Amounts are based on the closing stock price on December 30, 2016 ($64.00).

(d)

The amounts shown represent (i) the value of eligible unvested RSUs, which is calculated based on the number of unvested RSUs multiplied by the closing stock price on December 30, 2016 ($64.00) and (ii) the intrinsic value of the unvested stock options, which is calculated based on the difference between the closing stock price on December 31, 2016 ($64.00), and the relevant exercise price. For purposes of a “Change in Control,” we assume that an alternate award is not provided and the vesting of the unvested awards accelerate. For retirement eligible employees, the eligible equity awards do not accelerate but continue to vest on the same basis as active employees. Because Mr. Eckersley is retirement eligible, his equity awards, other than his special RSU award granted in 2016, would continue to vest after termination of employment for any reason other than cause.

(e)

In the event of a change in control of the Company and a termination of the NEOs, the present value of the pension benefits under the EOSP, KMP and Supplemental Pension Plans would be paid out as lump sums. The amounts shown under change of control represent the estimated benefit provided in excess of the EOSP amount shown in the Pension Benefits Table. While there is no additional benefit to the NEOs as a result of involuntary resignation without cause or in the event of a death or disability, there are differences (based on the methodology mandated by the SEC) between the numbers that are shown in the Pension Benefits Table and those that would actually be payable to the NEO under these termination scenarios.

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(f)	For the “Change in Control” column, the amount represents the maximum expenses we would reimburse the NEO for professional outplacement services.

(g)	Represents our cost of continued active coverage for twenty four months.

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•	using the Internet and voting at www.proxyvote.com;

•	calling 1-800-690-6903 and following the telephone prompts to vote by proxy; or

•	completing, signing and returning a proxy card by mail. If you received a Notice and did not receive a proxy card, you may request one at sendmaterial@proxyvote.com.

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•	by notifying the Company’s Secretary in writing: c/o Allegion plc, Block D, Iveagh Court, Harcourt Road, Dublin 2, Ireland;

•	by submitting another properly signed proxy card with a later date or another Internet or telephone proxy at a later date but prior to the close of voting described above; or

•	by voting in person at the Annual General Meeting.

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(a)	Represents ordinary shares held directly.

(b)	Represents ordinary shares and ordinary share equivalents notionally held under the EDCP that are not distributable within 60 days of the Record Date.

(c)	Represents ordinary shares as to which directors and executive officers had stock options exercisable or RSUs that vest within 60 days of the Record Date, under the 2013 Stock Plan.

(d)

The Company’s ordinary shares beneficially owned by all current directors and executive officers individually and as a group (including shares issuable under exercisable options or vesting RSUs) aggregated less than 1% of the total outstanding ordinary shares. Ordinary shares and ordinary share equivalents notionally held under the EDCP are not counted as outstanding shares in calculating these percentages because they are not beneficially owned; the directors and executive officers have no voting or investment power with respect to these shares or share equivalents.

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(a)	The ownership percentages set forth in this column are based on the Company’s outstanding ordinary shares on the Record Date and assumes that each of the beneficial owners continued to own the number of shares reflected in the table above on such date.

(b)	Information regarding the T. Rowe Price Associates, Inc. and its stockholdings was obtained from a Schedule 13G/A filed with the SEC on February 6, 2017. The filing indicated that, as of December 31, 2017, T. Rowe Price had sole voting power as to 4,170,789 shares and sole dispositive power as to 9,775,145 shares.

(c)	Information regarding The Vanguard Group and its stockholdings was obtained from a Schedule 13G/A filed with the SEC on February 9, 2017. The filing indicated that, as of December 31, 2017, Vanguard had sole voting power as to 127,901 shares, shared voting power as to 10,946 shares, sole dispositive power as to 8,647,831 shares, and shared dispositive power as to 133,921 of such shares.

(d)	Information regarding the JPMorgan Chase & Co. and its stockholdings was obtained from a Schedule 13G filed with the SEC on January 25, 2017. The filing indicated that, as of December 31, 2017, JPMorgan Chase had sole voting power as to 5,422,893 shares, shared voting power as to 5,061 shares, sole dispositive power as to 6,480,342 shares, and shared dispositive power as to 82,381 of such shares.

(e)	Information regarding the Black Rock, Inc. and its stockholdings was obtained from a Schedule 13G filed with the SEC on January 30, 2017. The filing indicated that, as of December 31, 2017, BlackRock had sole voting power as to 4,474,700 shares and sole dispositive power as to 5,180,584 shares.

(f)	Information regarding the Standard Life Investments Ltd. and its stockholdings was obtained from a Schedule 13G filed with the SEC on February 14, 2017. The filing indicated that, as of December 31, 2017, Standard had sole voting power as to 4,879,625 shares and sole dispositive power as to 4,879,625 shares.

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