Archer Aviation Inc. Form 4 Filings

Archer Aviation Inc. (ACHR) reported insider equity activity by Benjamin Lyon, President, Aircraft OEM. On August 15, 2026, two tranches of 54,383 and 41,164 restricted stock units were settled into the same number of Class A Common shares at a $0.00 exercise price, pursuant to quarterly vesting schedules. On August 17, 2026, Lyon sold 50,188 Class A shares at a weighted average price of $6.4128 per share, in multiple trades between $6.32 and $6.485, to satisfy tax withholding obligations arising from the RSU vesting.

Archer Aviation Inc. (ACHR) reported that its Chief Accounting Officer, Harsh Rungta, had restricted stock units convert into Class A Common Stock on August 15, 2026, resulting in acquisitions of 21,754 and 12,412 shares at a conversion price of $0.00 per share. On August 17, 2026, he sold 13,880 shares of Class A Common Stock in the market at a weighted average price of $6.4128 per share, within a price range of $6.32 to $6.485, to satisfy tax withholding obligations related to the RSU vesting.

Archer Aviation Inc. (ACHR) reported insider equity activity by Interim CFO Priya Gupta. On August 15, 2026, she converted a total of 20,398 Restricted Stock Units into the same number of Class A Common shares at $0.00 per share as part of vesting awards, some of which include shares previously acquired through the company’s Employee Stock Purchase Plan. On August 17, 2026, 10,015 Class A shares were sold in the market at a weighted average price of $6.4128 per share (individual trades ranged from $6.32 to $6.485) to satisfy tax withholding obligations arising from RSU vesting.

Archer Aviation Inc. (ACHR) reported that Chief Legal & Strategy Officer Eric Lentell sold 52,762 shares of Class A Common Stock on August 17, 2026 at a weighted average price of $6.4128 per share in multiple trades between $6.32 and $6.485, with the sale made to satisfy tax withholding obligations from recently vested restricted stock units. On August 15, 2026 he also settled 100,443 restricted stock units, each representing a contingent right to one Class A share, into an equal number of Class A shares at no cash exercise price, under several time-based vesting schedules tied to continued service.

Archer Aviation director Michael Spellacy exercised 19,102 restricted stock units into Class A common shares. These RSUs converted at a price of $0.00 per share as part of a compensation award.

Following the transaction, he holds 73,746 Class A shares directly and 1,162,183 Class A shares indirectly through Achill Holdings LLC, where he is the sole managing member. The filing shows no open‑market purchases or sales and no remaining RSUs from this award.

Archer Aviation director Maria Pinelli reported equity compensation activity involving Class A Common Stock and restricted stock units (RSUs). On June 26, 2026, she exercised RSUs to acquire 19,102 shares of Class A Common Stock, bringing her direct holdings to 201,787 shares after the transaction. The filing also shows a new grant of 40,983 RSUs, each representing a right to receive one share of Class A Common Stock if service-based vesting conditions are met. One RSU award vested or vests on the earlier of the one-year anniversary of its grant date or the date of Archer’s 2026 annual stockholders’ meeting, while the new award will vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 annual stockholders’ meeting. The RSUs do not expire; they either vest into shares or are cancelled if vesting conditions are not satisfied.

Archer Aviation director Oscar Munoz reported equity compensation activity involving Class A Common Stock and Restricted Stock Units (RSUs). He exercised RSUs representing 19,102 shares of Class A Common Stock and, after this exercise, directly held 461,223 Class A shares.

Munoz also received a new award of 40,983 RSUs, each representing a contingent right to one share of Class A Common Stock. These RSUs vest in full on the earlier of the one-year anniversary of the grant date or the company’s 2027 annual stockholders’ meeting, subject to his continued service.

Archer Aviation Inc. director Fred M. Diaz reported equity compensation activity involving restricted stock units and Class A Common Stock. He exercised 19,102 Restricted Stock Units into an equal number of Class A shares, bringing his direct holdings of Class A Common Stock to 126,457 shares.

Diaz also received a grant of 40,983 Deferred Restricted Stock Units, each representing a right to receive one Class A share if service-based vesting conditions are met. The footnotes explain that these awards generally vest on the earlier of the one-year anniversary of the grant date or the company’s specified future annual stockholders’ meetings, and deferred units are scheduled to settle in shares on the tenth anniversary of the grant date, subject to earlier settlement upon certain events.

Archer Aviation Inc. director Deborah Diaz reported routine equity compensation changes. She exercised previously granted restricted stock units, receiving 19,102 shares of Class A Common Stock at no cash exercise price, bringing her direct Class A holdings to 172,632 shares.

Diaz also received a new grant of 40,983 restricted stock units, each representing one future share of Class A Common Stock. According to the award terms, this grant will vest in full on the earlier of one year from the grant date or the date of Archer Aviation’s 2027 annual stockholders’ meeting, subject to her continued service.

Archer Aviation Inc.'s Chief Legal & Strategy Officer, Eric Lentell, reported an open-market sale of 3,754 shares of Class A common stock at a weighted average price of about $4.9984 per share on June 11, 2026.

According to the footnotes, these shares were automatically sold to cover tax withholding obligations arising from the vesting of restricted stock units, consistent with company policy. Following this tax-related sale, Lentell directly holds 137,330 shares of Archer Aviation Class A common stock.

Archer Aviation’s Chief Accounting Officer Harsh Rungta reported equity compensation activity and a related share sale. He exercised vested restricted stock units into 34,166 shares of Class A common stock, at a stated conversion price of $0.00 per share.

To cover tax withholding obligations from this vesting, he sold 12,414 shares of Class A common stock at a weighted average price of $5.9527 per share, with individual sale prices ranging from $5.87 to $6.13. Following these transactions, he directly holds 87,210 shares of Class A common stock and 152,272 restricted stock units that remain outstanding and subject to vesting conditions.

Archer Aviation Inc.’s Chief Technology Officer, Thomas Paul Muniz, reported multiple stock transactions. On May 15 and May 18, 2026, he sold a total of 136,579 shares of Class A Common Stock at weighted average prices around $6 per share. Footnotes state these shares were sold to satisfy tax withholding obligations tied to the vesting of restricted and performance restricted stock units, rather than discretionary sales. On May 15, several awards of restricted stock units were also converted into a total of 168,026 shares of Class A Common Stock. Following these transactions, Muniz directly holds 1,462,314 shares of Class A Common Stock.

Archer Aviation Chief Legal & Strategy Officer Eric Lentell reported a mix of stock transactions involving the company’s Class A common stock and restricted stock units. He sold 88,136 shares on May 15 and May 18, 2026 at weighted average prices of $6.0611 and $5.9527 per share. Footnotes state these sales were made solely to cover tax withholding obligations tied to vesting of restricted and performance restricted stock units, rather than discretionary open‑market selling. On May 15, 2026 he also exercised derivative awards to acquire 100,442 shares of Class A common stock at a conversion price of $0.00 per share and received a new grant of 87,617 restricted stock units. After these transactions, he holds 141,084 shares of Class A common stock directly, alongside ongoing RSU awards that vest in scheduled quarterly installments.

Archer Aviation Inc. interim CFO Priya Gupta reported routine equity compensation activity involving restricted stock units and related tax withholding. On May 15, 2026, she exercised RSUs that delivered 20,398 shares of Class A Common Stock. On May 18, 2026, she sold 9,860 shares at a weighted average of $5.9527 per share to satisfy tax withholding obligations tied to RSU vesting. Following these transactions, she held 189,050 shares of Class A Common Stock directly.

Goldstein Adam D reported acquisition or exercise transactions in this Form 4 filing.

Archer Aviation Inc. reported that Chief Executive Officer Adam D. Goldstein received a grant of 788,552 Deferred Restricted Stock Units. Each unit represents a contingent right to receive one share of Class A common stock, provided he remains in service through the applicable vesting dates.

The award vests in 12 equal installments, with 1/12 of the units vesting quarterly on each August 15, November 15, March 1, and May 15. Once vested, the units are scheduled to settle in shares during calendar year 2031 on a date the company determines, though settlement can occur earlier upon death, disability, separation from service, a Change in Control, or an unforeseeable emergency. Following this grant, Goldstein holds 788,552 such units directly.

Rungta Harsh reported acquisition or exercise transactions in this Form 4 filing.

Archer Aviation Inc. granted Chief Accounting Officer Harsh Rungta 148,949 restricted stock units (RSUs) under a compensation award. Each RSU represents a contingent right to receive one share of Class A common stock, tied to his continued service with the company.

The award vests in quarterly installments of 1/12 of the total grant, beginning on May 15, 2026, and then on August 15, November 15, March 1, and May 15 until fully vested or cancelled. Following this grant, Rungta holds 148,949 RSUs directly, and the RSUs either vest or are cancelled rather than expiring.

Archer Aviation Inc. reported that Chief Technology Officer Thomas Paul Muniz acquired 78,659 shares of Class A common stock through a grant with no cash price per share. The shares reflect the vesting of the second of three tranches from a March 26, 2024 performance-based restricted stock unit award tied to relative total stockholder return over a defined performance period. On April 20, 2026, Archer’s compensation committee certified that this second tranche vested at 164.87% of the target amount for the two-year performance period from March 26, 2024 to March 26, 2026. Following this vesting event, Muniz directly holds 1,430,867 Class A shares.

Archer Aviation Inc. reported that Chief Legal & Strategy Officer Eric Lentell acquired 78,659 shares of Class A common stock through vesting of a performance-based restricted stock unit award. This represents the second of three tranches from a March 26, 2024 performance-based RSU grant.

On April 20, 2026, the compensation committee certified that the vesting criteria tied to relative total stockholder return were achieved for the two-year performance period from March 26, 2024 to March 26, 2026, causing one-third of the award to vest at 164.87% of its target amount. Following this vesting, Lentell directly holds 128,778 shares.

Archer Aviation Inc. Chief Legal & Strategy Officer Eric Lentell sold a total of 100,000 shares of Class A Common Stock in open-market transactions at prices of $5.30 and $5.36 per share. These sales were executed under a pre-arranged Rule 10b5-1 trading plan and were described as offsetting certain tax liabilities and related costs from a previous restricted stock unit settlement. Following the transactions, Lentell directly held 50,119 shares and restricted stock units representing contingent rights to receive up to 548,955 additional shares, subject to service-based vesting.

Archer Aviation Inc.'s Chief Administrative Officer, Tosha Perkins, reported an automatic sale of shares to cover taxes. On the transaction date, 10,949 shares of Class A common stock were sold at a weighted average price of $6.2749 per share, with individual sale prices ranging from $6.225 to $6.315.

The footnotes explain that these shares were sold to satisfy tax withholding obligations arising from the vesting of a 2025 performance-based restricted stock unit (PRSU) award, in line with company policy under which shares are automatically sold to cover such obligations. Following this sale, Perkins directly owned 384,768 shares of Archer Aviation’s Class A common stock, indicating she retained a substantial equity position after the tax-related disposition.

Archer Aviation Inc. reported that Chief Technology Officer Thomas Paul Muniz sold 9,580 shares of Class A common stock on March 13, 2026 at a weighted average price of $6.2749 per share. According to the disclosure, these shares were automatically sold to satisfy tax withholding obligations arising from the vesting of a 2025 performance-based restricted stock unit award, consistent with company policy. After this transaction, Muniz directly holds 1,352,208 shares of Archer Aviation’s Class A common stock, indicating this was a small, routine disposition tied to compensation rather than a discretionary open-market sale.

Archer Aviation Inc. Chief Legal & Strategy Officer Eric Lentell reported an open-market sale of 8,059 shares of Class A common stock at a weighted average price of $6.2749 per share. The shares were sold on March 13, 2026 to satisfy tax withholding obligations arising from vesting of a 2025 PRSU Award, and were automatically sold under company policy. After this transaction, Lentell directly holds 150,119 shares. The sale price reflected multiple trades within a range of $6.225 to $6.315 per share.

Archer Aviation Inc. interim CFO Priya Gupta reported an open-market sale of 7,263 shares of Class A common stock. The shares were sold at a weighted average price of $6.2749 per share, in multiple trades between $6.225 and $6.315.

According to the disclosure, these shares were automatically sold to cover Gupta’s tax withholding obligations arising from the vesting of her 2025 PRSU Award. After the sale, she directly holds 178,512 Archer Aviation Class A shares.

Archer Aviation Inc. chief administrative officer Tosha Perkins acquired 18,695 shares of Class A common stock as a performance-based equity award. The shares relate to the first of three tranches of a 2025 performance restricted stock unit award, tied to relative total stockholder return and continued service. On March 10, 2026, the compensation committee certified this first tranche at 53.73% of the target amount, causing it to fully vest and become eligible for share settlement. Following this award, Perkins directly holds 395,717 Archer Aviation shares.

Archer Aviation Inc. reported that Chief Technology Officer Thomas Paul Muniz acquired 16,358 shares of Class A common stock as a stock award, with no cash paid per share. This reflects the first of three tranches from a 2025 performance-based restricted stock unit (PRSU) award.

On March 10, 2026, the compensation committee certified achievement of the first tranche of the 2025 PRSU Award, which became earned at 53.73% of the target amount granted. The performance RSUs in this tranche are now fully vested and were settled into shares on the certification date, bringing Muniz’s direct holdings to 1,361,788 shares.

Archer Aviation Inc. reported that Chief Legal & Strategy Officer Eric Lentell acquired 18,695 shares of Class A common stock at no cost through a performance-based equity award. This increased his direct holdings to 158,178 shares.

The shares relate to the first of three tranches under a 2025 performance-based restricted stock unit award granted on February 17, 2025. On March 10, 2026, the compensation committee certified that this first tranche was earned at 53.73% of its target amount, causing those units to fully vest and become settleable in Class A common stock on the certification date.

Archer Aviation Inc. interim CFO Priya Gupta reported receiving a performance-based stock award. On the certification of the first tranche of a 2025 performance restricted stock unit grant, she acquired 14,021 shares of Class A common stock at no cost as compensation.

This represented one of three tranches under a 2025 performance RSU award tied to relative total stockholder return and her continued service. Following this vesting event, her direct holdings increased to 185,775 Class A shares, and the vested units from this tranche became fully settled in stock on March 10, 2026.

Archer Aviation Inc.’s Chief Accounting Officer, Harsh Rungta, reported an open‑market sale of 22,826 shares of Class A Common Stock at a weighted average price of $6.461 per share.

According to the footnotes, these shares were sold to satisfy tax withholding obligations from recently vested restricted stock units. After the transaction, Rungta directly holds 65,458 shares of Class A Common Stock, which includes 2,569 shares acquired through the company’s employee stock purchase plan.

Archer Aviation Inc.'s Chief Administrative Officer, Tosha Perkins, reported an open-market sale of 54,786 shares of Class A Common Stock on March 5, 2026. The weighted average sale price was $6.461 per share, across individual trades between $6.315 and $6.775.

According to the filing, these shares were sold to satisfy tax withholding obligations tied to the vesting of restricted stock units previously reported. After this transaction and a minor one-share administrative correction, Perkins directly holds 377,022 shares of Archer Aviation Class A Common Stock.

Archer Aviation Inc. Chief Technology Officer Thomas Paul Muniz reported selling 94,725 shares of Class A common stock in an open-market transaction at a weighted average price of $6.461 per share on March 5, 2026. The sale was made to satisfy tax withholding obligations related to vesting restricted stock units. After this transaction and a one-share administrative correction, he held 1,345,430 shares of Archer Aviation Class A common stock directly.

Archer Aviation Inc. Chief Legal & Strategy Officer Eric Lentell sold 37,390 shares of Class A Common Stock on March 5, 2026, in an open-market transaction at a weighted average price of $6.461 per share. According to the footnotes, these shares were sold to satisfy tax withholding obligations from recently vested restricted stock units. The shares were sold in multiple trades at prices ranging from $6.315 to $6.775 per share. After this tax-related sale and a one-share administrative correction, Lentell directly holds 139,483 Class A shares.

Archer Aviation Inc. interim CFO Priya Gupta reported an open-market sale of 10,172 shares of Class A common stock on March 5, 2026, at a weighted average price of $6.461 per share. The sale was made to cover tax withholding obligations tied to recently vested restricted stock units.

After this transaction, Gupta directly held 171,754 Class A shares. The filing also corrects prior reports to include five additional shares that she acquired earlier through the company’s employee stock purchase plan, which had been omitted previously due to administrative error.

Archer Aviation Inc.'s Chief Administrative Officer, Tosha Perkins, reported multiple equity award vesting events on March 1, 2026. Restricted stock units (RSUs) were exercised or converted at a price of $0.0000 per share, resulting in additional shares of Class A Common Stock held directly.

Each RSU represents a right to receive one Class A share, conditioned on Perkins’s continued service to the company. The awards vest in scheduled quarterly installments, with portions having begun vesting on May 15, 2023, May 15, 2024, March 1, 2025, and March 1, 2026, and continuing on specified quarterly dates. The filing reflects acquisitions only, with no reported share sales or dispositions.

Archer Aviation Inc. Chief Accounting Officer Harsh Rungta reported an automatic exercise and conversion of 85,715 restricted stock units into 85,715 shares of Class A Common Stock on March 1, 2026, at a price of $0.00 per share.

Following these transactions, he directly holds 174,026 restricted stock units and 85,715 shares of Class A Common Stock. The award vests with 1/3 on March 1, 2026 and the remaining 1/12 quarterly on May 15, August 15, November 15, and March 1, so long as he continues as a service provider.

Archer Aviation Inc. chief technology officer Thomas Paul Muniz reported multiple equity transactions dated March 1, 2026. All were coded as derivative exercises/conversions, moving vested Restricted Stock Units into Class A Common Stock, including blocks of 143,750, 8,945, 7,718 and 7,612 shares at a reported price of $0.00 per share. Footnotes explain that each RSU converts into one Class A share and vests in scheduled quarterly tranches; the units do not expire but either vest or are cancelled before vesting.

Archer Aviation Inc. Chief Legal & Strategy Officer Eric Lentell reported derivative exercises and vesting of restricted stock units on March 1, 2026. These transactions delivered 93,139 shares of Class A Common Stock at a price of $0.00 per share, with no shares sold.

Archer Aviation Interim CFO Priya Gupta reported multiple equity transactions tied to vesting restricted stock units on March 1, 2026. She exercised RSUs at $0.00 per share, converting blocks of 3,583, 6,524, and 10,291 units into the same number of Class A common shares, all held directly. Footnotes explain these RSU awards vest quarterly in equal fractions over 12 or 16 installments on dates including May 15, August 15, November 15, March 1, and May 15, and that units either vest or are cancelled rather than expiring.

Archer Aviation’s chief administrative officer, Tosha Perkins, received a grant of 154,365 restricted stock units (RSUs) on February 9, 2026. Each RSU is a right to receive one share of Class A common stock.

The award vests over time: 1/12 of the RSUs vests on March 1, 2026, with additional tranches vesting quarterly on May 15, August 15, November 15, and March 1 until fully vested, so long as she continues as a service provider. The RSUs do not expire; they either vest or are cancelled before the scheduled vesting dates.

Archer Aviation Inc. reported that its Chief Legal & Strategy Officer, Eric Lentell, received a grant of 185,238 restricted stock units on February 9, 2026. Each unit represents the right to receive one share of Class A common stock.

The award will vest over time, with 1/12 vesting on March 1, 2026 and additional tranches vesting quarterly on May 15, August 15, November 15, and March 1 thereafter, as long as he continues as a service provider. The units do not expire; they either vest or are cancelled before the vesting dates.

Archer Aviation's chief technology officer, Thomas Paul Muniz, received a grant of 92,619 restricted stock units on February 9, 2026. Each unit represents the right to receive one share of Class A common stock if he continues as a service provider to the company.

The award vests over time: 1/12 of the total vests on March 1, 2026, with additional portions vesting quarterly on May 15, August 15, November 15, and March 1. The units have no expiration date; they either vest on schedule or are cancelled beforehand.

Archer Aviation's interim CFO Priya Gupta reported an equity award of restricted stock units. On February 9, 2026, she received 123,492 RSUs at a grant price of $0. Each RSU represents a right to one share of Class A common stock, subject to continued service.

The award vests in 12 installments. The first 1/12 vests on March 1, 2026, with additional tranches vesting quarterly on May 15, August 15, November 15, and March 1 until fully vested. The RSUs do not have an expiration date; they either vest or are cancelled before vesting.

Archer Aviation reported that Chief Executive Officer and director Adam D. Goldstein received 131,300 deferred restricted stock units on January 7, 2026. This represents the first of three tranches from a performance-based restricted stock unit award granted in December 2024, which vests based on relative total stockholder return and requires his continued service.

The deferred restricted stock units are fully vested and each unit will convert into one share of Archer’s Class A common stock during a deferral period in calendar year 2029, on a date chosen by the company. Settlement can occur earlier if there is a qualifying event such as death, disability, separation from service, a change in control, or an unforeseeable emergency. The remaining two tranches of this 2024 award can still expire if their performance goals are not met by the end of their respective performance periods in 2026 and 2027.

Archer Aviation Inc.'s Chief Technology Officer, Thomas Paul Muniz, reported a stock sale of company shares. On 01/02/2026, he sold 125,000 shares of Archer Aviation Class A common stock at a price of $8 per share in a single reported transaction. After this sale, he beneficially owned 1,272,129 shares of Class A common stock in direct ownership.

The transaction was carried out under a pre-established Rule 10b5-1 trading plan, which the reporting person adopted on August 28, 2025 and later amended on September 29, 2025. Such plans are designed to allow insiders to sell shares according to predetermined instructions.

Archer Aviation Inc. (ACHR) reported insider equity activity by its Chief People Partnerships Officer, Tosha Perkins, related to vesting restricted stock units (RSUs) and a tax-related share sale. On 11/15/2025, multiple RSU awards were exercised, delivering 32,456, 19,797, 5,964, and 26,096 shares of Class A Common Stock at an exercise price of $0 per share. These RSUs convert into one share each as they vest and do not expire, instead either vesting or being cancelled.

On 11/17/2025, Perkins sold 45,018 Class A shares at a weighted average price of $7.4948 to cover tax withholding obligations triggered by the RSU vesting, in line with company policy that automatically sells shares for this purpose. After these transactions, Perkins beneficially owned 334,632 Class A shares directly.

Archer Aviation Inc. (ACHR) reported insider activity by its Chief Technology Officer, Thomas Paul Muniz. On 11/15/2025, multiple restricted stock unit (RSU) awards were converted into Class A Common Stock, including 143,750, 8,946, and 7,612 shares at an exercise price of $0. These RSUs each represent a contingent right to receive one share and vest over multi-year schedules tied to continued service.

On 11/17/2025, Muniz sold 90,648 Class A shares at a weighted average price of $7.4948 per share to satisfy tax withholding obligations triggered by the RSU vesting. Following these transactions, he directly owned 1,397,129 Class A shares and continued to hold substantial unvested RSUs.

Archer Aviation Inc. (ACHR) reported an insider equity transaction by its Chief Legal & Strategy Officer on a Form 4. On 11/15/2025, several tranches of restricted stock units (RSUs) were exercised, resulting in the acquisition of 22,866, 19,797, 8,946, and 26,096 shares of Class A common stock at an exercise price of $0 per share. On 11/17/2025, 41,490 shares of Class A common stock were sold at a weighted average price of $7.4948 per share to satisfy tax withholding obligations related to the RSU vesting. Following these transactions, the officer beneficially owned 83,733 shares of Archer Aviation Class A common stock directly.

Archer Aviation Inc. (ACHR) interim CFO Priya Gupta reported equity transactions involving the company’s Class A Common Stock and restricted stock units (RSUs).

On 11/15/2025, RSUs converted into 3,583 and 6,524 shares of Class A Common Stock at a price of $0 per share, increasing her directly held shares to 167,002.

On 11/17/2025, 5,479 shares of Class A Common Stock were sold at a weighted average price of $7.4948, in transactions within a price range of $7.245 to $7.87, leaving 161,523 shares held directly. The sale was to satisfy tax withholding obligations triggered by RSU vesting.

The filing also notes two RSU awards, each RSU representing one share of Class A Common Stock. One award vests in sixteenth increments beginning May 15, 2024, and the other in twelfth increments beginning March 1, 2025; RSUs either vest or are cancelled and do not expire.

Archer Aviation Inc. (ACHR) reported an amended insider transaction for its Interim CFO, Priya Gupta. The Form 4/A corrects the number of restricted stock units that vested on March 1, 2025 from a single RSU award. On that date, 19,484 restricted stock units converted into shares of Class A common stock at a price of $0 per share, reflecting the nature of RSU vesting rather than an open-market purchase. The RSU award’s vesting schedule had previously been modified by the company’s compensation committee, and the units either vest or are cancelled prior to the vesting date. After giving effect to all transactions originally reported in the earlier filing, the reporting person directly held 127,463 shares of Archer Aviation Class A common stock.