Frontier Group Holdings, Inc. Form 4 Filings

Frontier Group Holdings, Inc. reported that Howard Diamond, EVP, Legal & Corporate Affairs, sold 24,195 shares of Common Stock on 2026-08-04 at $8.25 per share in a sale in open market or private transaction. After this sale, he directly holds 133,126 shares. The transaction is not indicated as made under a Rule 10b5-1 trading plan.

Frontier Group Holdings, Inc. executive Josh A. Wetzel, VP & CAO, reported selling 2,000 shares of Common Stock on August 4, 2026 at $8.00 per share in a sale classified as an open-market or private transaction. Following this sale, he directly holds 10,061 shares of Frontier Group common stock.

Frontier Group Holdings, Inc. executive Trevor J. Stedke, Sr. Vice President, Operations, reported selling 167,277 shares of Common Stock on 2026-08-04 in transactions described as open market or private sales at a weighted average price of $8.0272 per share, with prices from $8.00 to $8.20, leaving 0 shares directly owned.

Frontier Group Holdings SVP of Human Resources Steve Schuller reported selling 10,000 shares of Common Stock on August 3, 2026 in a sale classified as an open market or private transaction. The weighted average sale price was $7.5537 per share, with individual trades between $7.55 and $7.56, leaving him with 87,175 shares held directly. The sale is not marked as executed under a Rule 10b5-1 trading plan.

Frontier Group Holdings, Inc. senior vice president, Customers, Alexandre Clerc reported selling a total of 10,210 shares of common stock.

The sales occurred on July 31, 2026 (7,142 shares at $7.1301) and August 4, 2026 (3,068 shares at $8.174) in transactions coded as sales in the open market or private transactions. The Rule 10b5-1 trading-plan checkbox was not marked.

Group Holdings - Frontier LLC, a ten percent owner of Frontier Group Holdings, Inc., reported an open-market sale of 11,700,000 shares of common stock on July 9, 2026 at $7.20 per share. Following this transaction, the reporting entity holds 22,706,526 shares of Frontier common stock directly.

Steele Barron Elliot reported acquisition or exercise transactions in this Form 4 filing.

Frontier Group Holdings director Steele Barron Elliot received a grant of 22,284 Deferred Stock Units. These units were awarded at a price of $0.00 per unit and each represents a contingent right to receive one share of Frontier Group common stock.

The Deferred Stock Units have no expiration date and will vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholder meeting after the grant date, provided Elliot continues serving through that date. After vesting, they will be settled in common shares on a date Elliot selects under the company’s Non-Employee Director Compensation Program or as otherwise provided by the plan.

Frontier Group Holdings, Inc. senior vice president of human resources Steve Schuller reported an open-market sale of 10,000 shares of Common Stock. The sale occurred on June 5, 2026 at a weighted average price of $6.0011 per share, with individual trades ranging from $6.00 to $6.02. After this transaction, Schuller directly holds 97,175 shares of Frontier Group common stock.

Frontier Group Holdings, Inc. insider activity: Alexandre Clerc, SVP, Customers, reported an open-market sale of Frontier Group Holdings, Inc. Common Stock. On 2026-06-02, Clerc sold 5,060 shares at an average price of $5.9301 per share. After this transaction, he directly owns 47,698 shares of Common Stock.

Frontier Group Holdings VP & CAO Josh A. Wetzel sold 13,500 shares of common stock at a weighted average price of $4.7506 per share. After this open-market sale, he directly holds 12,061 Frontier Group Holdings shares. The sale price reflects multiple individual trades averaged into a single reported figure.

Frontier Group Holdings director and 10% owner William A. Franke reported equity award activity and updated holdings. On May 14, 2026, he exercised 34,230 Restricted Stock Units for an equivalent number of shares of common stock at a price of $0.00 per share, leaving him with 67,362,528 shares of common stock held directly.

He also received a new grant of 32,990 Restricted Stock Units, each representing one share of common stock, with vesting tied to continued service and no expiration date. The filing additionally updates indirect ownership: 82,449 shares held by his spouse, 116,827 shares held by Indigo Partners LLC, and 31,975,180 shares held by Indigo Denver Management Company, LLC, which may be attributed to entities associated with him, subject to his pecuniary interest.

Frontier Group Holdings director Anthony David Salcido reported equity compensation activity. On May 14, 2026, he exercised 6,721 Restricted Stock Units into 6,721 shares of Common Stock, which he now holds directly. He was also granted 32,990 new Restricted Stock Units, each representing one share of Common Stock.

The newly granted 32,990 RSUs will vest in full on the earlier of May 14, 2027 or immediately before the next annual meeting of stockholders after the grant date, subject to his continued service. The filing reflects routine equity awards and derivative exercises rather than open-market purchases or sales.

Frontier Group Holdings, Inc. director Nancy Lipson reported equity-based compensation activity rather than open-market trading. On May 14, 2026, she exercised 34,230 Restricted Stock Units, receiving an equal number of Frontier common shares, bringing her direct common stock holdings to 60,524 shares.

She was also granted 32,990 Deferred Stock Units, each representing a right to receive one Frontier common share in the future. These Deferred Stock Units will vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholders meeting after the grant date, and will be settled in common stock under the company’s Non-Employee Director Compensation Program.

Frontier Group Holdings director Patricia Salas Pineda increased her equity exposure through compensation-related awards. She exercised Restricted Stock Units into 34,230 shares of Common Stock at a stated price of $0.00 per share, bringing her direct Common Stock holdings to 149,763 shares.

She also received a grant of 32,990 Deferred Stock Units, each representing a contingent right to one share of Common Stock. These Deferred Stock Units vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholder meeting after the grant date and will be settled in Common Stock under the company’s Non-Employee Director Compensation Program.

Frontier Group Holdings director Ofelia Kumpf reported equity compensation changes involving restricted and deferred stock units. She exercised or converted 34,230 Restricted Stock Units into Common Stock and, after these transactions, directly holds 98,409 shares of Common Stock.

Kumpf also received a grant of 32,990 Deferred Stock Units, each representing a contingent right to one share of Common Stock. The Restricted Stock Units were fully vested as of May 14, 2026. The Deferred Stock Units will vest in full on the earlier of May 14, 2027 or immediately before the next annual meeting of stockholders after the grant date, and will later be settled in shares under the company’s Non-Employee Director Compensation Program.

Frontier Group Holdings director Alejandro Daniel Wolff reported equity compensation-related transactions, increasing his ownership in the company. On May 14, 2026, he exercised 34,230 Restricted Stock Units into the same number of shares of common stock, bringing his direct common stock holdings to 124,413 shares. The filing shows the Restricted Stock Units were fully vested as of that date and had no expiration date.

On the same day, Wolff also received a grant of 32,990 Deferred Stock Units, each representing a contingent right to receive one share of common stock. These Deferred Stock Units have no expiration date and will vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholder meeting after the grant, with settlement in common stock under the company’s Non-Employee Director Compensation Program.

Frontier Group Holdings director Robert J. Genise increased his equity exposure through compensation-related stock activity. On May 14, 2026, he exercised restricted stock units into 34,230 shares of Common Stock, bringing his direct holdings to 364,764 shares. The filing also shows a new grant of 32,990 Restricted Stock Units, each representing the right to receive one share of common stock. These new RSUs will vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholder meeting after the grant date, contingent on his continued board service.

Frontier Group Holdings director Bernard L. Han increased his equity stake through routine equity compensation actions. He exercised 34,230 Restricted Stock Units into an equal number of shares of Common Stock on May 14, 2026, bringing his direct Common Stock holdings to 448,857 shares after the transactions.

On the same date, he received a new grant of 32,990 Restricted Stock Units, each representing a contingent right to one share of Common Stock. These RSUs are scheduled to vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholder meeting, subject to his continued service, leaving 32,990 RSUs outstanding following the grant.

Frontier Group Holdings director Brian H. Franke reported equity compensation changes, not open-market trades. A prior batch of 34,230 Restricted Stock Units (RSUs) was exercised into the same number of common shares, bringing his directly held common stock to 4,529,345 shares. He also received a new grant of 32,990 RSUs, each representing one share of common stock, which will vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholder meeting, subject to continued service. Separately, a family trust associated with him holds 1,244,013 common shares, and he disclaims beneficial ownership of those trust shares.

Frontier Group Holdings director Andrew S. Broderick reported equity compensation activity involving common stock and restricted stock units (RSUs). He exercised RSUs into 34,230 shares of Common Stock, bringing his direct Common Stock holdings to 882,671 shares after the transactions.

He also received a new award of 32,990 RSUs, each representing a right to one share of Common Stock. According to the terms, these RSUs will vest in full on the earlier of May 14, 2027 or immediately before the next annual meeting of stockholders after the grant date, subject to his continued service.

Frontier Group Holdings director Josh T. Connor reported compensation-related equity activity. On May 14, 2026 he exercised 34,230 Restricted Stock Units (RSUs) into an equal number of Frontier common shares, increasing his direct common stock holdings to 175,735 shares.

He also received a new grant of 32,990 RSUs, each representing a contingent right to one share of common stock. These RSUs will vest in full on the earlier of May 14, 2027 or immediately before the next annual stockholder meeting after the grant date, subject to his continued service.

Frontier Group Holdings reported that Sr. Vice President, Operations Trevor J. Stedke executed an open-market sale of 83,110 shares of Common Stock on May 7, 2026. The shares were sold at an average price of $5.4101 per share, leaving him with 167,277 shares held directly afterward.

Frontier Group Holdings SVP and Chief Commercial Officer Robert Schroeter reported routine equity compensation activity tied to restricted stock units (RSUs). On March 25, 2026, previously granted RSUs covering 82,762 shares of Frontier common stock settled upon vesting, with no shares sold by Schroeter. The company withheld 23,795 shares at a price of $3.48 per share solely to cover tax obligations, which the filing notes does not represent a sale. Following these transactions, Schroeter held 107,989 shares of Frontier common stock directly. Footnotes state that remaining RSUs continue to vest, with one grant vesting in two substantially equal annual installments beginning on March 25, 2027, and another fully vesting on March 25, 2027.

Frontier Group Holdings VP & CAO Josh A. Wetzel reported the vesting and settlement of previously granted Restricted Stock Units (RSUs) into common stock on February 6 and 8, 2026. The RSUs converted into shares of Frontier common stock at an exercise price of $0.00 per share.

The company withheld 1,599 shares on February 6 at $5.65 per share and 1,691 and 1,151 shares on February 8 at $6.52 per share to cover tax obligations. The filing states these withholdings do not represent sales by Wetzel.

After these transactions, Wetzel directly owned 25,561 shares of Frontier common stock. The remaining RSUs from one grant vest in two substantially equal annual installments beginning on February 6, 2027, while other RSUs had fully vested as of February 8, 2026.

Frontier Group Holdings, Inc. (ULCC) reported an insider equity transaction by SVP and Chief Commercial Officer Robert Schroeter. On February 6, 2026, 14,421 previously granted Restricted Stock Units vested and were settled in shares of common stock, with no shares sold by Schroeter.

To cover tax withholding on this vesting, the company withheld 4,975 shares of common stock at $5.65 per share. After these transactions, Schroeter directly owns 49,022 shares of Frontier common stock and 28,842 Restricted Stock Units, which vest in two substantially equal annual installments beginning February 6, 2027.

Frontier Group Holdings senior vice president of operations Trevor J. Stedke reported routine equity compensation activity involving restricted stock units in February 2026. On February 6, 14,421 restricted stock units converted into an equal number of common shares, with 6,309 shares withheld by the company to cover tax obligations. On February 8, a further 12,255 units converted into common shares, with 5,361 shares withheld for taxes. After these transactions, Stedke directly held 250,387 shares of Frontier common stock and 28,842 restricted stock units, with the remaining units scheduled to vest in two substantially equal annual installments beginning February 6, 2027, while another award was fully vested as of February 8, 2026.

Frontier Group Holdings SVP & CFO Mark Christopher Mitchell reported equity award vesting and related tax withholding. On February 6, 2026, 14,421 Restricted Stock Units (RSUs) converted into an equal number of common shares, increasing his directly held stock. The company withheld 6,309 shares at $5.65 solely to cover taxes, which the filing states does not represent a sale by him.

On February 8, 2026, additional RSU tranches of 3,657 and 2,471 units were settled into common stock, with 1,599 and 1,081 shares, respectively, withheld for taxes at $6.52 per share. After these transactions, Mitchell owned 178,785 shares of Frontier common stock directly. The filing notes 28,842 RSUs remained outstanding after the February 6 settlement and that the remaining RSUs vest in two substantially equal annual installments beginning on February 6, 2027, while certain RSUs were fully vested as of February 8, 2026.

Frontier Group Holdings SVP of Human Resources Steve Schuller reported equity compensation activity, not open-market trading. On February 6, 2026, 14,421 Restricted Stock Units (RSUs) converted into the same number of common shares, with 6,309 shares withheld at $5.65 solely to cover taxes.

On February 8, 2026, additional RSUs for 6,055 and 1,299 shares were settled into common stock, with 2,649 and 568 shares withheld at $6.52 for tax obligations. After these transactions, Schuller directly held 107,175 shares of common stock and 28,842 RSUs, with remaining RSUs vesting in two substantially equal annual installments beginning on February 6, 2027.

Frontier Group Holdings, Inc. President & CEO James G. Dempsey reported routine equity compensation activity involving restricted stock units (RSUs) and related common stock on February 6 and February 8, 2026.

Previously granted RSUs vested and were settled into Frontier common stock, including 37,082 shares on February 6 and 24,150 plus 5,262 shares on February 8. The company withheld 11,690 shares at $5.65 and 6,943 and 1,512 shares at $6.52 solely to cover tax obligations, which the footnotes state do not represent sales by Dempsey. After these transactions, he directly owned 347,613 shares of Frontier common stock, and 74,166 RSUs remain, scheduled to vest in two substantially equal annual installments beginning on February 6, 2027. Certain RSUs were fully vested as of February 8, 2026.

Frontier Group Holdings EVP Howard Diamond reported equity awards vesting and related tax share withholdings. On February 6, 2026, 18,335 Restricted Stock Units (RSUs) converted into the same number of common shares, with 8,021 shares withheld at $5.65 to cover taxes.

On February 8, 2026, additional RSUs for 11,328 and 6,442 shares were exercised into common stock, with 4,956 and 2,818 shares withheld at $6.52 for taxes. After these transactions, Diamond directly held 157,321 shares of Frontier common stock and 36,671 RSUs, which vest in two substantially equal annual installments beginning on February 6, 2027. The filing states no shares were sold by him; share reductions reflect issuer tax withholding.

Frontier Group Holdings SVP, Customers Alexandre Clerc reported routine equity compensation activity. On February 6, 2026, 14,421 Restricted Stock Units vested and were settled into an equal number of Frontier common shares, with no discretionary share sales by Clerc.

The company withheld 4,146 common shares at $5.65 each solely to cover tax obligations related to the vesting, which is not treated as a sale by the executive. After these transactions, Clerc directly owned 52,758 shares of Frontier common stock and held 28,842 Restricted Stock Units that continue to vest.

The remaining Restricted Stock Units are scheduled to vest in two substantially equal annual installments beginning on February 6, 2027, providing ongoing equity-based compensation tied to future service.

Frontier Group Holdings, Inc. reported that SVP and Chief Information Officer Jeffrey Mathew received an award of 61,947 Restricted Stock Units on February 5, 2026. Each unit is a contingent right to one share of common stock and was granted at $0.00 per unit.

The Restricted Stock Units vest in three substantially equal annual installments beginning on February 5, 2027. Following this award, Mathew beneficially owns 61,947 derivative securities directly.

Frontier Group Holdings SVP and Chief Commercial Officer Robert Schroeter reported equity compensation activity involving Frontier Group Holdings, Inc. common stock. On February 5, 2026, 2,536 shares of common stock were acquired at $0.00 upon partial vesting of previously granted performance stock units tied to relative total shareholder return, bringing his direct holdings to 40,450 shares before tax withholding.

Also on February 5, 2026, Schroeter received 61,947 restricted stock units, each representing one future share of common stock with no expiration date. These RSUs vest in three substantially equal annual installments beginning February 5, 2027. On February 6, 2026, 874 shares of common stock valued at $5.65 per share were withheld to cover taxes due on the PSU vesting, leaving 39,576 common shares held directly and 61,947 RSUs outstanding.

Frontier Group Holdings SVP & CFO Mark Christopher Mitchell reported equity compensation changes tied to performance and time-based awards. On February 5, 2026, 2,536 shares of common stock vested from previously granted Performance Stock Units after the Compensation Committee determined the performance goals were partially met.

On the same date, he received 88,496 Restricted Stock Units, each representing one future share of common stock, which will vest in three substantially equal annual installments beginning February 5, 2027. On February 6, 2026, 1,109 shares were withheld at a price of $5.65 per share to cover taxes due on the PSU vesting, leaving him with 167,225 directly held common shares.

Frontier Group Holdings reported equity award activity for Sr. Vice President of Operations Trevor J. Stedke. On February 5, 2026, 2,536 shares of common stock vested from previously granted performance stock units after the company partially met its relative total shareholder return goals. On February 6, 2026, 1,109 shares were disposed of at $5.65 per share, representing shares withheld to cover taxes on that vesting. The filing also shows a new grant of 61,947 restricted stock units, each representing one share of common stock, which will vest in three substantially equal annual installments beginning on February 5, 2027.

Frontier Group Holdings director Anthony David Salcido received a grant of 6,721 Restricted Stock Units on February 5, 2026. Each unit represents the right to receive one share of Frontier common stock at no purchase price.

The 6,721 Restricted Stock Units will vest in full on the earlier of May 15, 2026 or immediately before the next annual stockholder meeting after the grant date, as long as Salcido continues in service through that vesting date. Following this grant, he beneficially owns 6,721 RSUs directly.

Frontier Group Holdings SVP Steve Schuller reported multiple equity transactions in early February 2026. On February 5, he acquired 2,536 shares of common stock at $0.00 upon partial vesting of previously granted performance stock units tied to relative total shareholder return, bringing his direct holdings to 101,035 shares.

That same day, he was granted 61,947 restricted stock units, each representing one share of common stock, with no expiration and vesting in three substantially equal annual installments beginning February 5, 2027. On February 6, 1,109 shares were withheld at $5.65 to cover taxes due on the PSU vesting, and he sold 5,000 shares at $6.00 per share under a pre-established Rule 10b5-1 trading plan, leaving him with 94,926 directly held common shares.

Frontier Group Holdings President & CEO James G. Dempsey reported equity compensation changes. On February 5, 2026, 6,521 shares of common stock were acquired at $0.00 upon partial vesting of previously granted performance stock units, bringing his common stock holdings to 303,138 shares before tax withholding. On February 6, 2026, 1,874 shares at $5.65 were withheld to cover taxes due on the PSU vesting, leaving 301,264 common shares held directly. He also acquired 309,735 Restricted Stock Units for no cash cost, each representing one future share of common stock, which vest in three substantially equal annual installments starting on February 5, 2027.

Frontier Group Holdings EVP Howard Diamond reported equity compensation changes tied to performance and time-based awards. On February 5, 2026, 3,224 shares of common stock were acquired at $0.00 upon partial vesting of previously granted Performance Stock Units after the compensation committee determined performance goals were partially met.

On February 6, 2026, 1,410 shares were withheld at $5.65 per share to cover taxes from that vesting, leaving 137,011 common shares directly held. Diamond also received 88,496 Restricted Stock Units at $0.00, each representing one future common share and vesting in three equal annual installments starting February 5, 2027.

Frontier Group Holdings SVP, Customers Alexandre Clerc reported equity compensation changes. On February 5, 2026, 2,536 shares of Common Stock were acquired at $0.00 upon partial vesting of previously granted Performance Stock Units tied to relative total shareholder return goals.

On February 6, 2026, 729 shares were withheld at $5.65 per share to cover taxes due on this vesting, leaving 42,483 Common shares directly held. Clerc also received 61,947 Restricted Stock Units, each representing one future share, which vest in three equal annual installments beginning on February 5, 2027.

Frontier Group Holdings VP & CAO Josh A. Wetzel reported equity compensation activity, not open‑market stock sales. On February 5, 2026, 4,619 previously granted restricted stock units (RSUs) vested and were settled into common shares, and 815 shares vested from a performance stock unit award after partial achievement of performance goals.

The company withheld 1,593 shares on February 5 and 281 shares on February 6 to cover taxes due at prices of $5.85 and $5.65 per share, respectively, which are not reported as sales. Wetzel directly owned 17,128 common shares after these transactions and held 22,124 new RSUs granted on February 5, 2026, scheduled to vest in three equal annual installments beginning February 5, 2027.

Frontier Group Holdings EVP Howard Diamond reported equity compensation activity, not an open-market sale. On February 1, 2026, 45,512 Restricted Stock Units vested and were settled into the same number of shares of common stock at $0.00 exercise price.

The company then withheld 19,911 shares at $4.64 solely to cover tax obligations, which the filing states does not represent a sale by Diamond. After these transactions, he directly owned 135,197 shares of common stock and 45,512 Restricted Stock Units that are scheduled to fully vest on February 1, 2027.

Frontier Group Holdings SVP Steve Schuller reported the vesting of 37,665 Restricted Stock Units and related tax withholding transactions on Common Stock. The RSU vesting on February 1, 2026, resulted in 37,665 shares of Common Stock being issued.

The company withheld 16,478 shares of Common Stock at $4.64 per share solely to cover tax obligations, which the filing states does not represent a sale by Schuller. After these entries, he beneficially owned 98,499 shares of Common Stock and 37,665 remaining RSUs that fully vest on February 1, 2027.

Frontier Group Holdings, Inc. executive Alexandre Clerc, SVP, Customers, reported restricted stock unit (RSU) vesting and related tax withholding transactions. On January 8, 2026, RSUs covering 47,081 and 9,416 units were converted into the same number of shares of common stock at an exercise price of $0.00 per share, reflecting previously granted awards.

The company withheld 15,741 and 2,707 shares of common stock at $4.73 per share solely to satisfy tax withholding obligations; the filing states these withholdings do not represent sales by the reporting person. After the transactions, Clerc beneficially owned 40,676 shares of common stock. Remaining RSUs of 94,162 vest in two substantially equal annual installments beginning on January 8, 2027, and 9,417 RSUs fully vest on January 8, 2027.

Frontier Group Holdings, Inc. reported that President & CEO James G. Dempsey received a new equity award of 117,371 Performance Stock Units on January 7, 2026, as disclosed in a Form 4 filing. Each unit represents a contingent right to receive one share of Frontier common stock.

The Performance Stock Units will cliff vest on the fourth anniversary of the grant date, as long as Dempsey continues serving the company through that date. The actual number of shares earned depends on stock price performance over the four-year period: a performance multiplier is calculated by dividing the average closing price at the end of the period (capped at $30.00 per share) by the average closing price at the beginning. There will be no payout if the average share price at the end of the performance period is below 50% of the beginning average price.

Frontier Group Holdings senior vice president of human resources Steve Schuller reported selling 5,000 shares of the company’s common stock on 12/10/2025 at a price of $6 per share.

After this transaction, he directly beneficially owns 77,312 shares. The sale was carried out under a Rule 10b5-1 trading plan that he adopted on May 19, 2024.

Frontier Group Holdings, Inc. CEO and director Barry L. Biffle reported open-market sales of company common stock. On 12/10/2025 he sold 17,373 shares at a weighted average price of $6.0106, and on 12/11/2025 he sold 82,627 shares at a weighted average price of $5.7811. After these transactions, he beneficially owned 631,836 shares of Frontier common stock directly. The sales were made under a Rule 10b5-1 trading plan adopted on August 8, 2025.

Frontier Group Holdings (ULCC) reported an insider equity award. Officer Jeffrey Mathew, SVP and Chief Information Officer, received 261,780 Restricted Stock Units (RSUs) on 10/29/2025 under a Form 4 filing. RSUs carry no cash exercise price.

The award vests in four substantially equal annual installments beginning on September 22, 2026. Following the transaction, 261,780 derivative securities were reported as beneficially owned in a direct capacity. Each RSU represents the right to receive one share of common stock upon vesting.

Frontier Group Holdings (ULCC): CEO/Form 4 activity. CEO and director Barry L. Biffle reported RSU vesting on October 25, 2025. He acquired 234,375 shares of common stock via RSU settlement (code M), with the company withholding 102,539 shares at $4.15 solely to cover taxes (code F). After these transactions, he directly holds 931,836 common shares.

Each RSU represents the right to receive one share and has no expiration. The filing notes that the remaining 234,375 RSUs fully vest on October 25, 2026, and that no shares were sold by the reporting person.