SLNH

SEC source: 0001493152-25-027500 · ownership.xml · nonDerivative · entry 2

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 124,233

F2 · price: Represents the average sales price of shares sold ranging from $9.25-$9.61 per share of 9.0% Series A Cumulative Preferred Stock. Mr. Phelan undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares sold in each separate lot.

SEC source: 0001493152-25-027501 · ownership.xml · nonDerivative · entry 1

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,748

F1 · price: Represents the average sales price of shares sold ranging from $9.69- $9.71 per share of 9.0% Series A Cumulative Preferred Stock. Mr. Hirshfield undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares sold in each separate lot.

SEC source: 0001493152-25-027500 · ownership.xml · nonDerivative · entry 1

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,970

F1 · price: Represents the average sales price of shares sold ranging from $9.43-$9.70 per share of 9.0% Series A Cumulative Preferred Stock. Mr. Phelan undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares sold in each separate lot.

SEC source: 0001493152-25-026002 · ownership.xml · nonDerivative · entry 1

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 976,318

F1 · shares: Transaction reported is a grant of 685,074 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001493152-25-026009 · ownership.xml · nonDerivative · entry 1

TOPOREK MICHAEL · CIK 0001243628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,822,282

F1 · shares: Transaction reported is a grant of 6,894,614 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001493152-25-026001 · ownership.xml · nonDerivative · entry 1

Hazelip William · CIK 0001848710 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 976,458

F1 · shares: Transaction reported is a grant of 685,074 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001493152-25-026005 · ownership.xml · nonDerivative · entry 1

MICHAELS DAVID C · CIK 0001183209 · Director · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,180,804

F1 · shares: Transaction reported is a grant of 801,222 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001493152-25-026006 · ownership.xml · nonDerivative · entry 1

OReilly Mary Jennifer · CIK 0001887606 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 977,274

F1 · shares: Transaction reported is a grant of 685,074 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on December 1, 2026, 33% on December 1, 2027, and 34% on December 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001493152-25-026007 · ownership.xml · nonDerivative · entry 1

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,320,015

F1 · shares: Transaction reported is a grant of 917,932 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer

SEC source: 0001493152-25-026008 · ownership.xml · nonDerivative · entry 1

Thomas Jessica L. · CIK 0001833489 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 338,609

F1 · shares: Transaction reported is a grant of 226,108 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on December 1, 2026, 33% on December 1, 2027, and 34% on December 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001493152-25-026004 · ownership.xml · nonDerivative · entry 1

Marusak Thomas J · CIK 0001312027 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,149,040

F1 · shares: Transaction reported is a grant of 801,222 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001493152-25-026003 · ownership.xml · nonDerivative · entry 1

Lipman Matthew E. · CIK 0001687758 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 977,402

F1 · shares: Transaction reported is a grant of 685,074 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001493152-25-026000 · ownership.xml · nonDerivative · entry 1

Budzyn Agnieszka Teresa · CIK 0002093633 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 485,000

F1 · shares: Transaction reported is a grant of 350,000 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on each of December 1, 2026 and December 1, 2027, and 34% will vest on December 1, 2028, so long as the Reporting Person has maintained a Business Relationship (as defined in the Restricted Stock Agreement) through each such date.

SEC source: 0001493152-25-025998 · ownership.xml · nonDerivative · entry 1

Belizaire John · CIK 0001891684 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,074,266

F1 · shares: Transaction reported is a grant of 2,861,788 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on December 1, 2026, 33% on December 1, 2027, and 34% on December 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001493152-25-025999 · ownership.xml · nonDerivative · entry 1

Bottomley John · CIK 0001891682 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 977,158

F1 · shares: Transaction reported is a grant of 685,074 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001493152-25-027325 · ownership.xml · nonDerivative · entry 2

Belizaire John · CIK 0001891684 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,053,287

F1 · shares: Transaction reported is a grant of 2,861,788 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on December 1, 2026, 33% on December 1, 2027, and 34% on December 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

F2 · balance_after: On December 3, 2025, the reporting person filed a Form 4 which inadvertently reported the incorrect number of shares of common stock beneficially owned following the reported transaction. In fact, as reported in this amendment, the number of shares of common stock beneficially owned following the reported transaction was 4,053,287.

SEC source: 0001493152-25-027325 · ownership.xml · nonDerivative · entry 1

Belizaire John · CIK 0001891684 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,191,499

SEC source: 0001493152-25-027323 · ownership.xml · nonDerivative · entry 2

Thomas Jessica L. · CIK 0001833489 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 335,197

F1 · shares: Transaction reported is a grant of 226,108 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on December 1, 2026, 33% on December 1, 2027, and 34% on December 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

F2 · balance_after: On December 3, 2025, the reporting person filed a Form 4 which inadvertently reported the incorrect number of shares of common stock beneficially owned following the reported transaction. In fact, as reported in this amendment, the number of shares of common stock beneficially owned following the reported transaction was 335,197.

SEC source: 0001493152-25-027323 · ownership.xml · nonDerivative · entry 1

Thomas Jessica L. · CIK 0001833489 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,089

SEC source: 0001493152-25-025795 · ownership.xml · nonDerivative · entry 1

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,748

SEC source: 0001493152-25-025007 · ownership.xml · nonDerivative · entry 3

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,748

SEC source: 0001493152-25-024651 · ownership.xml · nonDerivative · entry 3

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,971

SEC source: 0001493152-25-025004 · ownership.xml · nonDerivative · entry 2

Belizaire John · CIK 0001891684 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,212,478

SEC source: 0001493152-25-025004 · ownership.xml · nonDerivative · entry 1

Belizaire John · CIK 0001891684 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,217,400

SEC source: 0001493152-25-025007 · ownership.xml · nonDerivative · entry 2

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,748

SEC source: 0001493152-25-025007 · ownership.xml · nonDerivative · entry 1

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,648

SEC source: 0001493152-25-024651 · ownership.xml · nonDerivative · entry 2

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,471

SEC source: 0001493152-25-024651 · ownership.xml · nonDerivative · entry 1

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,971

SEC source: 0001493152-25-020245 · ownership.xml · nonDerivative · entry 1

Budzyn Agnieszka Teresa · CIK 0002093633 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,000

F1 · shares: Includes 135,000 shares of restricted stock as an initial grant upon initiation of board service. Of these shares, 33% will vest on each of September 1, 2026 and September 1, 2027, and 34% will vest on September 1, 2028, so long as the Reporting Person has maintained a Business Relationship (as defined in the Restricted Stock Agreement) through each such date.

SEC source: 0001641172-25-026263 · ownership.xml · nonDerivative · entry 1

Lipman Matthew E. · CIK 0001687758 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 292,328

F1 · shares: Transaction reported is a grant of 99,679 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001641172-25-026265 · ownership.xml · nonDerivative · entry 1

MICHAELS DAVID C · CIK 0001183209 · Director · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 379,582

F1 · shares: Transaction reported is a grant of 116,579 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001641172-25-026264 · ownership.xml · nonDerivative · entry 1

Marusak Thomas J · CIK 0001312027 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 347,818

F1 · shares: Transaction reported is a grant of 116,579 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on September 1, 2026, 33% on September 1, 2027, and 34% on September 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001641172-25-026268 · ownership.xml · nonDerivative · entry 1

Thomas Jessica L. · CIK 0001833489 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,501

F1 · shares: Transaction reported is a grant of 32,899 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on September 1, 2026, 33% on September 1, 2027, and 34% on September 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001641172-25-026269 · ownership.xml · nonDerivative · entry 1

TOPOREK MICHAEL · CIK 0001243628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,927,668

F1 · shares: Transaction reported is a grant of 1,003,176 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001641172-25-026262 · ownership.xml · nonDerivative · entry 2

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,244

F2 · shares: Transaction reported is a grant of 33,226 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on September 1, 2026, 33% on September 1, 2027, and 34% on September 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001641172-25-026262 · ownership.xml · nonDerivative · entry 1

Hirshfield Edward R · CIK 0001687731 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 258,018

F1 · shares: Transaction reported is a grant of 66,453 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001641172-25-026266 · ownership.xml · nonDerivative · entry 1

OReilly Mary Jennifer · CIK 0001887606 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 292,200

F1 · shares: Transaction reported is a grant of 99,679 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on September 1, 2026, 33% on September 1, 2027, and 34% on September 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001641172-25-026259 · ownership.xml · nonDerivative · entry 1

Belizaire John · CIK 0001891684 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,221,700

F1 · shares: Transaction reported is a grant of 416,394 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on September 1, 2026, 33% on September 1, 2027, and 34% on September 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.

SEC source: 0001641172-25-026260 · ownership.xml · nonDerivative · entry 1

Bottomley John · CIK 0001891682 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 292,084

F1 · shares: Transaction reported is a grant of 99,679 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001641172-25-026267 · ownership.xml · nonDerivative · entry 1

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 402,083

F1 · shares: Transaction reported is a grant of 133,560 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer

SEC source: 0001641172-25-026261 · ownership.xml · nonDerivative · entry 1

Hazelip William · CIK 0001848710 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,384

F1 · shares: Transaction reported is a grant of 99,679 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 100% upon the reporting person's separation from the issuer.

SEC source: 0001641172-25-014925 · ownership.xml · nonDerivative · entry 2

Tunison John · CIK 0002018397 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,000

SEC source: 0001641172-25-014828 · ownership.xml · nonDerivative · entry 2

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,071

F2 · price: Represents the average sales price of shares sold ranging from $2.55- $3.00 per share of 9.0% Series A Cumulative Preferred Stock. Mr. Phelan undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares sold in each separate lot.

SEC source: 0001641172-25-014828 · ownership.xml · nonDerivative · entry 1

Phelan William P · CIK 0001311899 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,421

F1 · price: Represents the average sales price of shares sold ranging from $2.76- $3.26 per share of 9.0% Series A Cumulative Preferred Stock. Mr. Phelan undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares sold in each separate lot.

SEC source: 0001641172-25-014925 · ownership.xml · nonDerivative · entry 1

Tunison John · CIK 0002018397 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,000

SEC source: 0001641172-25-014792 · ownership.xml · nonDerivative · entry 1

Thomas Jessica L. · CIK 0001833489 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,400

SEC source: 0001641172-25-013460 · ownership.xml · nonDerivative · entry 4

OReilly Mary Jennifer · CIK 0001887606 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,400

SEC source: 0001641172-25-013460 · ownership.xml · nonDerivative · entry 3

OReilly Mary Jennifer · CIK 0001887606 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,800

SEC source: 0001641172-25-013460 · ownership.xml · nonDerivative · entry 2

OReilly Mary Jennifer · CIK 0001887606 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,900

SEC source: 0001641172-25-013460 · ownership.xml · nonDerivative · entry 1

OReilly Mary Jennifer · CIK 0001887606 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 192,521

F1 · shares: Transaction reported is a grant of 73,972 restricted stock awards representing shares of Common Stock, par value $0.001 per share, of the issuer ("Common Stock"), which were approved by the Compensation Committee. The shares of Common Stock will vest 33% on June 1, 2026, 33% on June 1, 2027, and 34% on June 1, 2028, in each case subject to the reporting person remaining in the service of the issuer on each such vesting date.