On January 2, 2019, the Company issued and adopted the 2019 Non-Qualified Stock Option Plan (the “2019 Plan”) to incentivize directors, consultants, advisors, and other key employees of the Company and its subsidiaries to continue their association by providing opportunities to participate in the ownership and further growth of the Company. The 2019 Plan provides for the grant of options (the “Stock Options”) to acquire common shares of the Company.

Stock Options are exercised from the pool of shares designated by the appropriate Committee of the Board of Directors. The grant-date fair value of each option award is estimated on the date of grant using the Black-Scholes-Merton option-pricing model. The grant date fair value of the service vesting and the performance vesting options is recognized as an expense over the requisite service period and upon the achievement of the performance condition deemed probable of being achieved, respectively. The exercise price of each Stock Option shall be determined by the Committee and may not be less than the fair market value of the common shares on the date of grant. Stock Options have 10-year terms, after which they expire and are no longer exercisable.

The total number of common shares for which Stock Options may be granted under the 2019 Plan shall not exceed 13,640. The 2019 Plan was amended on November 6, 2020, pursuant to which the total number of common shares for which Stock Options may be granted under the 2019 Plan shall not exceed 15,640.

Stock Options become vested upon fulfillment of either service vesting conditions, performance vesting conditions, or both, as determined by the award agreement entered into by the Company and optionee. The service vesting requirement states that: (i) 25% of the service vesting options shall vest on the first anniversary of the grant date and (ii) the remaining 75% shall vest on an equal monthly-basis, so long as the optionee has remained continuously employed by the Company from the date of the award through the fourth anniversary of the grant date. The performance vesting requirement states that Stock Options shall vest upon sale of the Company only if the optionee has been continuously employed by the Company or its subsidiaries from the grant date through the date of such sale of the Company. For the awards vesting based on service conditions only and that have a graded vesting schedule, the Company recognizes compensation expense for vested awards in earnings, net of actual forfeitures in the period they occur, on a straight-line basis over the requisite service period.

In conjunction with the Business Combination, the Company amended and fully restated the 2019 Plan through the establishment of the 2021 Incentive Plan (“2021 Plan”). Pursuant to the 2021 Plan, each remaining legacy Stock Option from the 2019 Plan that was outstanding immediately prior to the Business Combination, whether vested or unvested, was converted into an option to purchase a number of shares of common stock (each such option, an “Exchanged Option”) equal to the product (rounded down to the nearest whole number) of (i) the number of shares of Legacy TOI stockholders subject to such Stock Option immediately prior to the Business Combination, and (ii) an exercise price per share equal to (A) the exercise price per

share of such Stock Option immediately prior to the consummation of the Business Combination, divided by (B) the Common Stock Exchange Ratio ("Stock Option Exchange Ratio"). Following the Business Combination, each Exchanged Option that was previously subject to time vesting only, will continue to be governed by the same terms and conditions (including vesting and exercisability terms) as were applicable to the corresponding former old Stock Option immediately prior to the consummation of the Business Combination. Each Exchanged Option that was previously subject to performance vesting, will no longer be subject to the sale of the Company, and was modified to include service requirements only, under which, the Exchange Options will vest on a monthly-basis, so long as the optionee has remained continuously employed by the Company from the date of the Business Combination through the third anniversary of the Closing Date. The Company treated the Exchanged Options that were previously subject to performance conditions as a new award granted at the Closing Date. The Exchanged Options that were previously subject to service vesting only were not modified as a result of the Business Combination. All stock option activity was retroactively restated to reflect the Exchanged Options.

As of the Closing Date, the 11,850 Stock Options outstanding under the 2019 Plan were converted into 6,925,219 Exchanged Options after effect of the Common Stock Exchange Ratio. This effect of the Common Stock Exchange Ratio has been retroactively adjusted throughout the Company's condensed consolidated financial statements.

The Company used the simplified method to calculate the expected term of stock option grants because sufficient historical exercise data was not available to provide a reasonable basis for the expected term. Under the simplified method, the expected term is estimated to be the mid-point between the vesting date and the contractual term of the option.


Stock options	Number of shares	Weighted average exercise price		Weighted average remaining contractual term	Aggregate intrinsic value (in thousands)
Balance at January 1, 2023	8,049,474	$	2.14
Granted	1,948,354	0.48
Exercised	(14,616)	0.86
Forfeited	(1,050,646)	2.31
Expired	(103,184)	1.32
Balance at September 30, 2023	8,829,382	$	1.76	7.09	$	4,110
Vested Options Exercisable at September 30, 2023	3,915,306	$	1.32	5.91	$	1,925


Stock options	Number of shares	Weighted average exercise price		Weighted average remaining contractual term	Aggregate intrinsic value (in thousands)
Balance at January 1, 2022	6,921,180	$	0.89
Granted	1,563,633	7.14
Exercised	(460,385)	0.91
Forfeited	(833,687)	2.17
Expired	(1,876)	1.13
Balance at September 30, 2022	7,188,865	$	2.10	7.51	$	21,744
Vested Options Exercisable at September 30, 2022	2,762,097	$	0.87	6.74	$	10,391

Total share-based compensation expense relating to stock options during the three and nine months ended September 30, 2023 was $2,563 and $7,823, respectively. Total share-based compensation expense relating to stock options during the three and nine months ended September 30, 2022 was $2,756 and $8,837, respectively.

At September 30, 2023, there was $13,279 of total unrecognized compensation cost related to unvested service Stock Options granted under the 2021 Plan and 2019 Plan that are expected to vest. That cost is expected to be recognized over a weighted average period of 2.56 years as of September 30, 2023. The total fair value of common shares vested during the nine months ended September 30, 2023 and 2022 was $1,616 and $6,976, respectively.

Agajanian Holdings (“Holdings”), a holder of Series A Preferred Shares of Legacy TOI, entered into arrangements with physicians employed by the TOI PCs to issue RSAs which represent Series A Preferred Shares of Legacy TOI. The Legacy TOI RSAs only have performance vesting requirements linked to the sale of the Company so long as the grantee remains continuously and actively employed by the Company’s subsidiaries through the vesting date.

Each of the Legacy TOI RSAs, from the Plan that was outstanding immediately prior to the Business Combination, whether vested or unvested, was converted into an RSU equal to the product (rounded down to the nearest whole number) of (i) the number of shares of RSAs immediately prior to the Business Combination, (ii) conversion rate of 1:10 of the Series A Preferred Shares of Legacy TOI, and (iii) the Common Stock Exchange Ratio. Following the Business Combination, each RSU is no longer subject to the sale of the Company event in order to vest, but was modified to include service requirements only. The service vesting requirement states that: (i) 16.67% of the RSUs shall vest on the sixth month anniversary of the Closing Date, and (ii) the remaining 83.33% shall vest on an equal quarterly-basis, so long as the grantee has remained continuously employed by the Company from the date of the award through the third anniversary of the grant date. The Company treated the RSUs that were previously subject to performance conditions as a new award granted at the Closing Date. All RSAs activity was retroactively restated to reflect the RSUs.

As of the Closing Date, the 2,210 RSAs outstanding under the Plan were converted into 1,291,492 RSUs upon the completion of the Business Combination after giving effect to the Common Stock Exchange Ratio. This effect of the Common Stock Exchange Ratio has been retroactively adjusted throughout our condensed consolidated financial statements.


	Nine Months Ended September 30,
	2023			2022
	Number of Shares	Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value
Unvested at beginning of year	2,106,540	$	7.25	1,291,492	$	10.98
Granted	1,899,809	0.64		1,544,284	7.28
Vested	(1,208,380)	2.45		(350,043)	10.68
Forfeited	(673,064)	4.49		(315,686)	7.50
Unvested at end of year	2,124,905	$	4.44	2,170,047	$	10.98

As of September 30, 2023 there was $9,033 of unrecognized compensation expense related to the RSUs that are expected to vest. That cost is expected to be recognized over a weighted average period of 2.56 years as of September 30, 2023. As of September 30, 2023, 2,024,351 of the RSUs have vested and zero were net settled to cover the required withholding tax upon vesting.

In 2022, the Company entered into arrangements with certain medical directors and supervisors of advanced practice providers employed by or engaged as independent contractors of TOI to issue RSUs of the Company (“Medical RSUs”). Vesting on each annual Medical RSU award is dependent on the participant performing a specified minimum number of service hours during the calendar year (“One-Year Term”) and further contingent upon the participant’s continued service to, or employment by, the Company through the grant date. The Company’s regular grant date for these Medical RSU awards is in the first quarter of the calendar year following the one-Year Term.

The number of Medical RSUs granted to each such participant is determined by dividing a fixed monetary value by the trailing five-day closing price per share of the Common Stock preceding the grant date. Due to the calculation, some Medical RSU awards are liability-classified whereas other Medical RSU awards have a fixed number of shares and are equity-classified.

In the fourth quarter of 2022, the Company amended the terms of Medical RSUs previously issued to approximately 21 participants during the first quarter of 2022. The amendment primarily updated the vesting period and conditions. The original terms of the Medical RSU awards were deemed improbable of vesting at the modification date whereas the amended Medical RSU awards were deemed probable of vesting at the modification date, and thus are a Type III modification under ASC 718. The modification to the Medical RSUs resulted in $187 incremental share-based compensation expense before forfeitures, $(11) after accounting for forfeitures related to participants who did not perform the minimum number of service hours specified, recorded in the Company's Statement of Operations.

The total fair value of the liability-classified Medical RSU awards granted in 2022 and outstanding as of December 31, 2022 was approximately $264, which represents the fixed monetary value of the awards. The weighted-average grant-date fair value, based on the Company’s share price granted during 2023 and 2022 was $1.00 and $3.56 for equity-classified Medical RSUs granted. There were no unvested equity-classified Medical RSU awards outstanding as of September 30, 2023.

As part of the Business Combination, DFPH issued to eligible Legacy TOI stockholders and Legacy TOI employees the contingent right to receive up to $12.5 million additional shares of common stock (“Legacy TOI Earnout Shares”), in two tranches of $5.0 million ("First Earnout Tranche") and $7.5 million ("Second Earnout Tranche"), respectively, upon the Company common stock achieving a price per share of $12.50 during the two-year period following the Closing or a price per share of $15.00 during the three-year period following the Closing Date, in each case, as its last reported sales price per share for any 20 trading days within any 30 consecutive trading day period within the applicable period ("Earnout Terms"); provided, that (i) if one or both of the share price triggers has not been achieved prior to the end of the three-year period following the Closing Date, (ii) the Company enters into a definitive agreement that would result in a change of control and (iii) the price per share of the Company’s common stock in such transaction is equal to or greater than one or both of the share price triggers, then at the Closing Date of such transaction, the Company shall issue the applicable portion of the Legacy TOI Earnout Shares as if such share price trigger had been achieved.

In addition, certain DFPH common stockholders deposited 575,000 shares of DFPH common stock in an escrow account that will vest and be released to such holders in two tranches of 50%, each (“DFPH Earnout Shares”), upon the Company common stock achieving the Earnout Terms as described above; provided, that (i) if one or both of the share price triggers has not been achieved prior to the end of the three-year period following the closing, (ii) the Company enters into a definitive agreement that would result in a change of control and (iii) the price per share of common stock in such transaction is equal to or greater than one or both of the share price triggers, then at the closing of such transaction, the Company shall issue the applicable portion of the DFPH Earnout Shares as if such share price trigger had been achieved. To the extent any DFPH Earnout Shares remain unvested at the expiration of the three-year period following the closing, such DFPH Earnout Shares shall be forfeited and cancelled without any consideration.

The Option-holders Earnout vests upon the Company common stock achieving the price per share as provided above, so long as the optionee has remained continuously employed by the Company at that date. The RSU-holders Earnout vests upon (a) the Company common stock achieving the price per share as provided above, and (b) the underlying RSU vested, so long as the optionee has remained continuously employed by the Company at that date.

The grant date fair value of the First Earnout Tranche and Second Earnout Tranche as of Closing Date was determined to be $8.35 and $6.76, respectively. The assumptions used in the Monte-Carlo Simulation model for the Earnout Shares granted on the Closing Date are provided in the following table:

The total share-based compensation expense was $92 and $319 for the three and nine months ended September 30, 2023 respectively, and $1,434 and $6,928 for the three and nine months ended September 30, 2022 respectively, related to the Employees Earnout Shares.

As of September 30, 2023, there was $183 of unrecognized compensation expense related to the Employees Earnout Shares, which are expected to vest. That cost is expected to be recognized over a weighted average period of 0.37 years as of September 30, 2023. As of September 30, 2023, none of the Employee Earnout Shares have vested.