Data Storage Corporation Form 4 Filings

Data Storage Corp (DTST) director John Argen reported selling 3,000 shares of common stock on September 10, 2026, in a transaction described as a sale to satisfy his tax withholding obligations. The weighted average sale price was about $2.97 per share, based on multiple trades between $2.96 and $3.00, and he held 19,000 shares directly after this transaction. No Rule 10b5-1 trading plan is reported for this sale.

Data Storage Corp (DTST) director Clifford Stein reported a sale of common stock on September 10, 2026. He sold 3,991 shares of DTST common stock primarily to satisfy tax withholding obligations related to his holdings. The shares were sold at a weighted average price of $3.05 per share, in multiple trades between $2.98 and $3.0816. After these transactions, Stein directly holds 18,009 DTST common shares. No Rule 10b5-1 trading plan is reported for this transaction.

Data Storage Corp (DTST) director Mitchell Uwayne A. reported selling 3,000 shares of common stock on September 11, 2026, in a transaction labeled as a sale. A footnote states the shares were sold to satisfy the reporting person's tax withholding obligations. The weighted average sale price was about $2.95 per share, with individual trades between $2.921 and $2.962. After this transaction, the reporting person directly holds 19,000 shares of Data Storage Corp common stock, and no Rule 10b5-1 trading plan is reported.

Data Storage Corp (DTST) director Todd A. Correll reported equity compensation activity involving restricted stock units and common stock. On September 2, 2026, 10,000 RSUs previously granted converted on a one-for-one basis into 10,000 shares of common stock upon full vesting at the 2026 Annual Meeting of Stockholders, exhausting that RSU award. On the same date, Correll received a new grant of 12,000 RSUs that will vest in full on the date of the 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported.

Data Storage Corp (DTST) reported that director Harold J. Schwartz had 10,000 restricted stock units convert into an equal number of shares of common stock on September 2, 2026, in connection with the 2026 Annual Meeting of Stockholders. On the same date, he received a new grant of 12,000 restricted stock units that will vest in full on the date of the 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported.

Data Storage Corp (DTST) director Clifford Stein reported equity compensation activity on September 2, 2026. A prior grant of 10,000 restricted stock units (RSUs) vested in full at the 2026 Annual Meeting of Stockholders and was converted into 10,000 shares of common stock, eliminating that RSU position. On the same date he received a new RSU award covering 12,000 shares of common stock, which will vest in full on the date of the 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported, and no open-market purchases or sales are disclosed.

Data Storage Corp (DTST) reported that director Nancy Stallone had 10,000 restricted stock units convert into 10,000 shares of common stock on September 2, 2026, when a prior RSU grant vested in full at the 2026 Annual Meeting of Stockholders.

On the same date, she received a new grant of 12,000 RSUs, each convertible one-for-one into common stock and scheduled to vest in full on the date of the company’s 2027 Annual Meeting of Stockholders, contingent on her continued service.

Data Storage Corp (DTST) director Mitchell Uwayne A. reported equity-compensation activity involving restricted stock units on September 2, 2026. He exercised 10,000 RSUs, which converted into 10,000 shares of common stock at a price of $0.00 per share when an RSU grant from January 29, 2026 vested in full on the date of the company’s 2026 Annual Meeting of Stockholders. He also received a new award representing 12,000 shares of common stock underlying RSUs granted on September 2, 2026, which are scheduled to vest in full on the date of the 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported for these transactions.

Data Storage Corp (DTST) director Lawrence A. Maglione reported equity compensation activity involving restricted stock units and common stock. On September 2, 2026, he exercised 10,000 RSUs into 10,000 shares of common stock at a stated price of $0.00 per share, eliminating that RSU position. The exercised RSUs were granted on January 29, 2026 and vested in full on the date of the 2026 Annual Meeting of Stockholders. On the same date, he also received a new award of 12,000 shares of common stock underlying RSUs that will vest in full on the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported for these transactions.

Data Storage Corp (DTST) director Thomas Kempster reported equity compensation activity on September 2, 2026. He exercised 10,000 restricted stock units (RSUs), which converted on a one-for-one basis into 10,000 shares of common stock, fully vesting a grant originally made on January 29, 2026 and tied to the 2026 Annual Meeting of Stockholders.

On the same date, he also received a new grant of 12,000 RSUs, which will vest in full on the date of Data Storage Corp’s 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported for these transactions.

Data Storage Corp (DTST) director Matthew Grover reported equity compensation activity involving restricted stock units and common shares. On September 2, 2026, 10,000 restricted stock units previously granted on January 29, 2026 vested and were converted on a one-for-one basis into 10,000 shares of common stock at a stated price of $0.00 per share. On the same date, he also received a new grant of 12,000 restricted stock units that will vest in full on the date of Data Storage Corp's 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported for these transactions.

Data Storage Corp (DTST) director John Argen reported equity compensation activity on September 2, 2026. He exercised 10,000 restricted stock units, converting them into 10,000 shares of common stock upon full vesting at the 2026 Annual Meeting, and received a separate equity award for 12,000 shares underlying a new RSU grant that will vest in full on the date of the 2027 Annual Meeting of Stockholders, subject to continued service. No Rule 10b5-1 trading plan is reported.

Data Storage Corp (DTST) Chairman and CEO Charles M. Piluso reported selling a total of 86,958 shares of common stock in three open-market transactions. The sales occurred on May 21, 2026, May 22, 2026, and May 26, 2026 at weighted average prices between $3.80 and $3.95 per share.

After these transactions, Piluso directly holds 223,074 shares of Data Storage Corp common stock. A footnote explains that shares were sold to satisfy tax withholding obligations, and that each reported price is a weighted average for multiple trades within the stated ranges.

Data Storage Corp Chief Financial Officer Christos Panagiotakos reported equity awards that increase his direct ownership stake. He received stock options for 125,000 shares at an exercise price of $0.0000 per share and a grant of 60,000 shares of common stock underlying restricted stock units.

Both the options and RSUs vest in three equal installments on May 20, 2027, May 20, 2028, and May 20, 2029. After the common stock award, his directly held common shares total 100,507, aligning his compensation more closely with shareholder outcomes over a multi-year period.

Data Storage Corp reported that Chairman and CEO Charles M. Piluso received new equity awards on February 13, 2026. He was granted stock options for 250,000 shares, which vest in three equal parts on May 20, 2027, May 20, 2028, and May 20, 2029, with an exercise price set at 110% of the closing share price on the grant date. He also received a restricted stock unit award covering 60,000 shares of common stock, vesting one-third on each of May 20, 2027, May 20, 2028, and May 20, 2029; these units convert into common stock on a one-for-one basis as they vest.

Data Storage Corp’s Chairman and CEO reported the acquisition of 160,600 shares of common stock on February 9, 2026, reflecting a grant of restricted stock units (RSUs) at a price of $0 per share. After this grant, the reporting person beneficially owns 250,032 common shares directly.

The filing is an amendment that corrects the vesting terms of this RSU award. It clarifies that all RSUs will vest in full on May 20, 2026, rather than on the grant date as previously disclosed. Each RSU converts into one share of common stock upon vesting.

Data Storage Corp Chairman and CEO Charles M. Piluso received a grant of 160,600 shares of common stock through restricted stock units on February 9, 2026. The RSU award vested in full on the grant date and converts into common stock on a one-for-one basis. Following this equity grant, Piluso directly beneficially owns 250,032 shares of Data Storage Corp common stock.

Data Storage Corp director receives RSU grant

Data Storage Corp director Harold J. Schwartz reported an award of 10,000 restricted stock units on January 29, 2026. The RSUs convert into common stock on a one-for-one basis and vest in full on the date of the company’s 2026 Annual Meeting of Stockholders, subject to his continued service.

Data Storage Corp director receives equity grant

Data Storage Corp director Matthew Grover received an award of 10,000 restricted stock units on January 29, 2026. These RSUs convert into common stock on a one-for-one basis and vest in full on the date of the company’s 2026 Annual Meeting of Stockholders, if he continues serving through that date.

Data Storage Corp director Todd A. Correll reported a grant of 10,000 restricted stock units (RSUs). The award was made on January 29, 2026 and is held directly. Each RSU converts into one share of Data Storage Corp common stock.

The 10,000 RSUs vest in full on the date of the company’s 2026 Annual Meeting of Stockholders, provided Correll continues serving the company through that vesting date. Following this grant, he beneficially owns 10,000 derivative securities tied to common shares.

Data Storage Corp director Lawrence A. Maglione reported an equity award of restricted stock units. On January 29, 2026, he received 10,000 restricted stock units at a price of $0 per unit. These RSUs convert into common stock on a one-for-one basis.

The 10,000 RSUs vest in full on the date of Data Storage Corp’s 2026 Annual Meeting of Stockholders, provided Maglione continues serving the company through that date. Following this grant, he directly holds 10,000 derivative securities tied to the company’s common stock.

Data Storage Corp director Uwayne A. Mitchell received an equity award of 10,000 restricted stock units on January 29, 2026. These RSUs convert into common stock on a one-for-one basis. They vest in full on the date of the company’s 2026 Annual Meeting of Stockholders, contingent on his continued service through that vesting date.

Following this grant, Mitchell beneficially owns 10,000 derivative securities directly in the form of RSUs.

Data Storage Corp director Nancy Stallone reported receiving a grant of 10,000 restricted stock units (RSUs) on January 29, 2026. Each RSU converts into one share of common stock. The RSUs vest in full on the date of Data Storage Corp’s 2026 Annual Meeting of Stockholders, subject to her continued service. Following this award, she beneficially owns 10,000 derivative securities directly.

Data Storage Corp director John Argen reported receiving an award of 10,000 restricted stock units on January 29, 2026. These RSUs convert into common stock on a one-for-one basis and are scheduled to vest in full at the company’s 2026 Annual Meeting of Stockholders, conditioned on his continued service.

Data Storage Corp director Thomas Kempster was granted 10,000 restricted stock units (RSUs) on January 29, 2026. Each RSU converts into one share of Data Storage Corp common stock.

These 10,000 RSUs vest in full on the date of the company’s 2026 Annual Meeting of Stockholders, provided Kempster continues serving the company through that vesting date.

Data Storage Corp reported an equity award to director Clifford Stein. On January 29, 2026, he received 10,000 restricted stock units (RSUs) at a price of $0 per unit. These RSUs convert into common stock on a one-for-one basis and vest in full on the date of the company’s 2026 Annual Meeting of Stockholders, subject to his continued service. Following this grant, Stein beneficially owns 10,000 derivative securities directly.

Data Storage Corp director John Argen reported selling 57,207 shares of the company’s common stock on January 14, 2026. The shares were sold to the issuer in a tender offer that is described as exempt under Rule 16b-3, meaning the transaction was with the company rather than in the open market, at a price of $5.20 per share. Following this sale, Argen reported owning zero shares of Data Storage Corp common stock. The reported transaction amount also includes 10,955 shares that had been inadvertently left out of his previous ownership reports.

Data Storage Corp director and 10% owner Harold J. Schwartz reported significant share sales and ownership corrections. On January 14, 2026, he disposed of 888,376 shares of common stock at $5.20 per share in a sale to the company under an issuer tender offer exempt under Rule 16b-3, leaving him with 28,471 shares held directly.

On the same date, 7,500 shares of common stock were disposed of at $5.20 per share by Systems Trading, Inc., an entity owned by Schwartz, which then held no shares. The filing also corrects prior reports: earlier forms had overstated his beneficial ownership by 20,735 shares and had omitted the 7,500 shares indirectly held through Systems Trading, Inc.

Data Storage Corp director Clifford Stein reported selling 280,850 shares of common stock to the company in an issuer tender offer at $5.2 per share, leaving him with no directly held shares.

The sale took place on January 14, 2026 and was reported as a disposition of non-derivative common stock. Following this transaction, Stein’s reported beneficial ownership of Data Storage Corp common stock is shown as zero shares held directly, indicating a full exit from his directly owned position through the tender offer.

Data Storage Corp director Lawrence A. Maglione reported a sale of 24,752 shares of common stock back to the company at $5.20 per share on January 14, 2026. The transaction was a sale to the issuer under a tender offer that is described as exempt under Rule 16b-3. Following this sale, the filing shows that Maglione directly beneficially owns 0 shares of Data Storage Corp common stock.

Data Storage Corp director Mitchell Uwayne A. reported a sale of common stock in a Form 4 filing. On 01/14/2026, he disposed of 11,248 shares of Data Storage Corp common stock at $5.20 per share, as shown in Table I. The transaction is coded "D" for a disposition and is marked as directly owned.

According to the footnote, the sale represents shares sold back to the company in an issuer tender offer that is exempt under Rule 16b-3. Following this transaction, the filing shows that Mitchell Uwayne A. beneficially owns 0 shares of the company’s common stock.

Data Storage Corp reported an insider share sale by director Nancy Stallone. On 01/14/2026, she disposed of 11,248 shares of common stock at $5.20 per share, according to a Form 4 filing. The transaction was coded as a disposition and left her with 0 shares beneficially owned.

The filing explains that the sale represents shares sold to the issuer in connection with an issuer tender offer exempt under Rule 16b-3, meaning the company itself was the buyer rather than open-market purchasers. The ownership is reported as held directly by Nancy Stallone.

Data Storage Corp director and 10% owner Kempster Thomas reported a sale of 881,472 shares of common stock at $5.20 per share on January 14, 2026. The transaction was coded as a disposal and left him with 0 shares beneficially owned directly after the sale. The shares were sold back to the company in connection with an issuer tender offer that is described as exempt under Rule 16b-3. The reported amount also reflects an additional 9,500 shares of common stock that had been inadvertently omitted from Thomas’s earlier ownership reports.

Data Storage Corp Chairman and CEO Charles M. Piluso reported several sales of the company’s common stock in connection with an issuer tender offer exempt under Rule 16b-3. On January 14, 2026, he disposed of 323,859 directly held shares at $5.20 per share, leaving 89,432 shares held directly. Additional sales of common stock at $5.20 per share were reported from indirect holdings through Piluso Family Associates, Piluso Family Associates LLC, and two 2012 trusts where Piluso or his spouse have roles as beneficiary or co‑trustee.

Data Storage Corp director Matthew Grover reported selling 43,340 shares of common stock to the company on January 14, 2026 at $5.20 per share. The transaction was coded as a disposition and was executed through an issuer tender offer that is exempt under Rule 16b-3. Following this sale, the filing shows that Grover no longer beneficially owns any shares of Data Storage Corp common stock in this account.

Data Storage Corp director reported an amended insider transaction related to stock options. On December 12, 2025, 10,202 shares of Data Storage Corp common stock were withheld to cover the exercise price of options at $4.97 per share, coded as transaction type "F". After this transaction, the director directly beneficially owned 43,340 shares of common stock.

This Form 4/A corrects an earlier report filed on December 15, 2025 that understated the number of shares withheld by 12 shares. The amendment clarifies that 10,202 shares, rather than the previously reported lower figure, were actually withheld by the company in connection with the option exercise.

Data Storage Corp reported that a director who is also a 10% owner exercised previously granted stock options on 12/16/2025. The insider acquired 9,804 shares at $1.96, 16,667 shares at $2.00, and 10,352 shares at $3.22 per share of common stock. Following these exercises, the reporting person beneficially owns 937,582 shares of common stock directly.

The options exercised had been issued between March 1, 2023 and January 2, 2024, and their remaining unexercised portions vested in full upon the consummation of the divestiture of the company’s CloudFirst business on September 11, 2025. The reported options were exercisable for a term of five years, and after these transactions, the specific option grants shown have been fully exercised.

Data Storage Corp director filed a Form 4 reporting several stock option exercises on 12/12/2025. The director acquired common stock through multiple option exercises, including 627 shares at an exercise price of $2.16 and additional blocks of 2,500 shares at exercise prices ranging from $1.48 to $3.24.

These options were originally granted between 2019 and 2023, with 10-year terms, and in several cases vested in full immediately upon consummation of the divestiture of the company’s CloudFirst business on 09/11/2025. A total of 10,190 shares were withheld to cover the option exercise price, and the director reported owning 43,352 shares of common stock directly after the transactions.

A director of Data Storage Corp reported multiple stock option exercises and related trades in the company’s common stock. On December 11, 2025, the director exercised options for 1,667 shares and several 2,500‑share lots at exercise prices between $1.48 and $3.24 per share, receiving common shares.

Shares were withheld at $4.99 per share to cover the option exercise costs, and additional shares were sold on December 11 and 12, 2025 at prices around $5.00 per share. After these transactions, the director directly owned 24,752 shares of Data Storage Corp common stock. Several of the options had fully vested earlier in connection with the divestiture of the company’s CloudFirst business on September 11, 2025.

Data Storage Corp reported that a company director carried out several equity transactions on December 11, 2025. The director exercised multiple stock options into common stock at exercise prices ranging from $1.48 to $3.24 per share, increasing their holdings before subsequent dispositions.

On the same day, 10,156 shares were disposed of at $4.96 per share to cover the option exercise cost, and an additional 10,471 shares were sold at $4.96 per share. After these transactions, the director directly owned 33,540 shares of Data Storage Corp common stock. Several of the options exercised had recently vested in full following the September 11, 2025 divestiture of the company’s CloudFirst business, and each option has a 10-year term from its grant date.

Data Storage Corp chairman and CEO Charles M. Piluso, who is also a director and a 10% owner, reported selling 20,089 shares of common stock on 12/10/2025 at a weighted average price of $4.9934 per share to satisfy tax withholding obligations.

After this transaction, he beneficially owned 413,291 common shares directly, plus indirect holdings of 16,667 shares through Piluso Family Associates, 65,083 shares through Piluso Family Associates LLC, and 230,116 shares each through The Lasata 2012 Trust and The Bella Vita 2012 Trust.

Data Storage Corp director and 10% owner Thomas Kempster reported a small sale of common stock. On 12/10/2025, he sold 6,846 shares of Data Storage Corp common stock in a single reported transaction coded as a sale.

The shares were sold to satisfy tax withholding obligations, according to the explanation provided. The transaction was executed at a weighted average price of $4.9934, with individual trades occurring between $4.9518 and $5.0001. After this transaction, Kempster beneficially owned 871,972 shares of Data Storage Corp common stock directly.

Data Storage Corp reported an insider stock sale by its Chief Financial Officer, Christos Panagiotakos. On 12/10/2025, he sold 11,053 shares of the company’s common stock at a weighted average price of $4.9934 per share.

The sale was made to satisfy tax withholding obligations, meaning shares were sold to cover taxes rather than as a discretionary open-market sale. Following this transaction, he beneficially owns 40,507 shares of Data Storage Corp common stock, held directly.

Data Storage Corp (DTST) director filed a Form 4 reporting multiple stock option exercises on 10/09/2025. The transactions converted options into common stock at exercise prices ranging from $1.48 to $3.24, with each line coded “M” for option exercise and shown as acquisitions. Following the reported transactions, the director beneficially owns 46,252 shares directly.

According to the footnotes, the exercised options were originally granted between 2022 and 2023, with several tranches vesting in full upon consummation of the divestiture of the Issuer’s CloudFirst business on September 11, 2025.