HORIZON KINETICS HOLDING Form 4 Filings

Horizon Kinetics Holding Corp (HKHC) director Alice C. Brennan reported a purchase of HKHC common stock. On September 2, 2026, she bought 200 shares at $25.92 per share, bringing her directly held position to 2,000 shares of common stock.

Horizon Kinetics Holding Corp (HKHC) director Alice C. Brennan reported an open-market purchase of company stock. On 2026-08-28, she purchased 200 shares of Common Stock at $26.20 per share, increasing her directly held position to 1,800 shares. The filing indicates the Rule 10b5-1 checkbox was not checked.

For Horizon Kinetics Holding Corp (HKHC), director Alice C. Brennan reported an open-market purchase of 200 shares of common stock on 2026-08-27 at $26.00 per share. Following this transaction, she directly holds 1,600 shares of HKHC common stock.

Horizon Kinetics Holding Corp (HKHC) reported that entities associated with director Daniel J. Roller, including Maran Partners Fund, LP, purchased 500 shares of common stock on August 26, 2026 at $26.50 per share. After this open‑market transaction, one reported position holds 10,000 directly owned shares, and an affiliated fund position reflects 236,066 shares held indirectly through Maran Partners Fund, LP. The filing states these securities may be deemed indirectly beneficially owned by related Maran entities and Mr. Roller, who each disclaim beneficial ownership except to the extent of their pecuniary interest.

Horizon Kinetics Holding Corp (HKHC) reported that director Alice C Brennan purchased additional shares of the company’s Common Stock. On 2026-08-25, she bought 200 shares in a purchase characterized as an open market or private transaction at $26.75 per share, bringing her directly held position to 1,400 shares. The filing indicates the Rule 10b5-1 trading plan checkbox was not selected.

Horizon Kinetics Holding Corp (HKHC) reported that director Alice C. Brennan purchased 200 shares of its common stock on August 24, 2026 in a purchase coded as an open market or private transaction at $26.87 per share.

Following this transaction, Brennan directly holds 1,200 shares of HKHC common stock.

Horizon Kinetics Holding Corp (HKHC) director Brent D. Rosenthal reported a purchase of 2,000 shares of Common Stock on August 24, 2026 in a purchase in open market or private transaction at $27.00 per share. Following this transaction, his directly owned holdings total 4,450 shares of HKHC common stock.

Horizon Kinetics Holding Corp (HKHC) reported that its Chief Financial Officer, Mark Herndon, purchased company common stock in the open market. He bought 50 shares on 2026-08-19 at $26.50 per share and 200 shares on 2026-08-20 at $26.75 per share, all held directly. The Rule 10b5-1 trading-plan checkbox was left unchecked.

Horizon Kinetics Holding Corp Chief Financial Officer Mark Herndon bought 100 shares of common stock in an open-market transaction at $27.85 per share. After this purchase, he directly holds 300 common shares of Horizon Kinetics Holding Corp.

Horizon Kinetics Holding Corp director Brent D. Rosenthal bought 700 shares of common stock in an open-market purchase$27.85 per share on the transaction date and now directly holds 2,450 common shares following this trade.

Horizon Kinetics Holding Corp insider Murray Stahl filed an amended Form 4 reporting small open-market purchases of HKHC common stock. On March 20, 2026, he bought 10 shares directly and entities associated with him bought 25 and 18 shares, all at $34.60 per share, totaling 53 shares.

The amendment also corrects previously overstated beneficial ownership figures. After these trades, reported holdings include 249,204 shares directly and large indirect positions such as 8,216,801 shares through Horizon Common Inc., 823,923 shares through FRMO Corp., and additional smaller stakes via several affiliated entities and his spouse. Footnotes state Stahl exercises investment discretion over certain entity-held shares and disclaims beneficial ownership beyond his pecuniary interest.

Horizon Kinetics Holding Corp insider activity shows a modest net buy. CEO and CIO Murray Stahl reported open‑market purchases of a total of 53 shares of Common Stock at $34.60 per share on March 20, 2026, split between direct and entity accounts.

He bought 10 shares directly, while 25 shares were purchased through Horizon Common Inc. and 18 shares through Horizon Kinetics Hard Assets, LLC. After these trades, his direct holding stands at 249,214 shares, and Horizon Common Inc. reports 8,216,801 shares indirectly attributed to him.

Additional indirect holdings are reported via his spouse, FRMO Corp., several Kinetics partnerships, and Horizon Kinetics Asset Management LLC. Footnotes state Stahl exercises investment discretion in these entities and disclaims beneficial ownership except to the extent of his pecuniary interest.

Horizon Kinetics Holding Corp director buys additional shares in the open market. Director Allison Nagelberg purchased 150 shares of common stock at $33.96 per share, bringing her direct holdings to 400 shares. This is a small open-market purchase that modestly increases her personal stake in the company.

Horizon Kinetics Holding Corp (HKHC) director and CEO/CIO Murray Stahl reported small open-market purchases of the company’s common stock. On March 19, 2026, he bought 89 shares in total at $34.06 per share across three transactions. Following these trades, his reported direct holding increased to 249,194 shares.

The filing also lists substantial indirect holdings through related entities. These include Horizon Common Inc., shown with 8,216,776 shares, and FRMO Corp., shown with 823,923 shares, along with smaller positions held via several partnerships and a spouse account. Footnotes state that Stahl exercises investment discretion over these entity-held shares and disclaims beneficial ownership except to the extent of his pecuniary interest.

Horizon Kinetics Holding Corp director and CEO/CIO Murray Stahl reported net open‑market purchases of Horizon Kinetics Holding Corp (HKHC) common stock. On 2026-03-18, he bought 10 shares directly at $34.00 per share, bringing his direct holdings to 249,148 shares.

On the same date, 9 shares were purchased at $34.00 per share and are held indirectly through Horizon Common Inc., which now holds 8,216,751 shares, and 8 shares were purchased at $34.00 per share and are held indirectly through Horizon Kinetics Hard Assets, LLC, which now holds 99 shares. Additional indirect holdings are reported through his spouse, FRMO Corp., Kinetics Institutional Partners LP, Kinetics Partners LP, and Horizon Kinetics Asset Management LLC; he exercises investment discretion over these entities but disclaims beneficial ownership except to the extent of his pecuniary interest.

Horizon Kinetics Holding Corp Chief Financial Officer Mark Herndon reported an open-market purchase of 80 shares of common stock at $33.03 per share. After this transaction, he directly owns 200 shares. This filing shows a small, routine insider buy rather than a large position change.

Horizon Kinetics Holding Corp director Brent D. Rosenthal made an open-market purchase of common stock. On March 18, 2026, he bought 750 shares at a price of $33.05 per share. After this transaction, he directly owns 1,750 common shares of the company.

Horizon Kinetics Holding Corp insider entities reported non-cash internal transfers of common stock. A group of related investment entities and Daniel J. Roller jointly filed to disclose activity on 12/23/2025. One transaction shows an in-kind contribution of 25,360 shares of common stock to Maran Partners Fund, LP at a stated price of $0 per share. Another transaction reports the disposition of 42,000 shares by Maran SPV, LP at $0 per share as those shares were distributed to its limited partners while that vehicle is winding down.

Following these transactions, Maran Partners Fund, LP is listed as directly beneficially owning 236,066 shares of Horizon Kinetics common stock, and Maran SPV, LP reports no remaining shares. The filing also notes an additional 9,500 shares of common stock reported as indirectly owned by Daniel J. Roller, reflecting his interests through affiliated entities.

Horizon Kinetics Holding Corp (HKHC) reported an insider stock purchase by its CEO, CIO, director, and 10% owner, Mr. Stahl. On 12/10/2025, he acquired small amounts of Common Stock in open-market purchases at $27 per share, including 12 shares held directly, 6 shares held through Horizon Common Inc., and 4 shares held through Horizon Kinetics Hard Assets, LLC.

After these transactions, he beneficially owns 249,138 shares directly and large indirect positions, including 8,216,742 shares through Horizon Common Inc., plus additional holdings via entities such as FRMO Corp., Kinetics Institutional Partners LP, Kinetics Partners LP, and Horizon Kinetics Asset Management LLC. The filing notes he exercises discretion over these shares and disclaims beneficial ownership beyond his pecuniary interest.

Horizon Kinetics Holding Corp insider activity: On 12/09/2025, CEO, CIO, director and 10% owner Mr. Stahl reported small open‑market purchases of Horizon Kinetics Holding Corp common stock at $27 per share. The filing shows acquisitions of 12 shares held directly, 6 shares held through Horizon Common Inc., and 4 shares held through Horizon Kinetics Hard Assets, LLC.

After these transactions, Mr. Stahl is shown as directly owning 249,126 shares, with substantial additional indirect holdings, including 8,216,736 shares through Horizon Common Inc., 823,923 shares through FRMO Corp., and smaller positions via several investment partnerships and entities. The footnotes state that Mr. Stahl exercises discretion over these shares and disclaims beneficial ownership beyond his economic interest.

Horizon Kinetics Holding Corp insider Mr. Stahl, who serves as CEO, CIO, director and a 10% owner, reported recent transactions in the company’s common stock on a Form 4. On 12/08/2025, he made small open‑market purchases of common stock at $26.73 per share, both in his direct account and through entities over which he has indirect control, including Horizon Common Inc. and Horizon Kinetics Hard Assets, LLC. The filing also lists sizable indirect holdings through his spouse, FRMO Corp, and several investment partnerships and an asset management company. Mr. Stahl states that he exercises discretion over certain shares and disclaims beneficial ownership beyond his pecuniary interest, and notes that part of the FRMO Corp position reflects shares held by its wholly owned subsidiary, Fromex Equity Corp.

Horizon Kinetics Holding Corp. (HKHC) reported an insider stock purchase by a senior executive and major shareholder. On 12/05/2025, the reporting person bought 12 shares of HKHC common stock directly and 6 shares indirectly, each at a price of $27.75 per share. After these transactions, the executive directly owns 249,102 shares and indirectly owns 8,216,724 shares through Horizon Common Inc., along with additional indirect holdings through entities including a spouse, FRMO Corp., and several investment partnerships.

The filer is identified as a Director, 10% Owner, CEO and CIO of HKHC, and the form notes that he exercises discretion over certain shares and disclaims beneficial ownership beyond his pecuniary interest. The filing is made jointly by more than one reporting person and is signed by an attorney-in-fact.

Horizon Kinetics Holding Corp (HKHC) insider Murray Stahl reported small open-market purchases of the company’s common stock. On 12/04/2025, he bought 12 shares of HKHC common stock directly at $27.75 per share, bringing his directly held stake to 249,090 shares. On the same date, an affiliated entity, Horizon Common Inc., purchased 6 shares at $27.75 per share, after which 8,216,718 shares are reported as indirectly owned through that entity.

Stahl is listed as a director, 10% owner, and CEO and CIO of Horizon Kinetics Holding Corp, and he reports additional indirect holdings through several related entities and his spouse. He states that he exercises discretion over these shares and disclaims beneficial ownership except to the extent of his pecuniary interest, including shares held by FRMO Corp and its wholly owned subsidiary Fromex Equity Corp.

Horizon Kinetics Holding Corp reported insider share purchases by a reporting person who is a director, CEO, CIO and 10% owner. On 12/03/2025, this insider bought 12 shares of common stock directly at $27 per share, bringing the directly held total to 249,078 shares.

On the same date, the insider also acquired 6 shares of common stock at $27 per share held indirectly through Horizon Common Inc., and 4 shares at $27 through Horizon Kinetics Hard Assets, LLC. The filing lists additional indirect holdings through a spouse, FRMO Corp., and several investment partnerships and asset management entities. The insider notes that he exercises discretion over certain shares and disclaims beneficial ownership except to the extent of his pecuniary interest.

Horizon Kinetics Holding Corp’s CEO and CIO, who is also a director and 10% owner, reported open-market purchases of common stock. On 12/02/2025, the insider bought 12, 6, and 4 shares of common stock at a price of $27.23 per share, each coded as a purchase transaction.

After these trades, the insider directly beneficially owns 249,066 shares of Horizon Kinetics common stock. He also reports significant indirect holdings, including 8,216,706 shares held through Horizon Common Inc. and additional shares held through entities such as FRMO Corp., Kinetics Institutional Partners LP, Kinetics Partners LP, Horizon Kinetics Hard Assets, LLC, Horizon Kinetics Asset Management LLC, and through a spouse. The insider states he exercises discretion over certain shares and disclaims beneficial ownership beyond his pecuniary interest.

Horizon Kinetics Holding Corp insider activity: A reporting person identified as Mr. Stahl, who serves as director, CEO, CIO and is a 10% owner of Horizon Kinetics Holding Corp, reported multiple open-market purchases of the company’s common stock on 11/28/2025 at a price of $27.23 per share. These included 12 shares held directly, and additional shares acquired through entities such as Horizon Common Inc. and Horizon Kinetics Hard Assets, LLC.

Following these transactions, the filing shows 249,042 shares held directly and significant indirect holdings, including 8,216,694 shares through Horizon Common Inc., 823,923 shares through FRMO Corp., and smaller positions through several affiliated investment partnerships and a spouse. Mr. Stahl exercises discretion over these indirect holdings and disclaims beneficial ownership except to the extent of his pecuniary interest, and the FRMO Corp. position includes shares owned by its wholly owned subsidiary Fromex Equity Corp.

Horizon Kinetics Holding Corp insider ownership details were updated in a Form 4 filing following stock purchases on 11/26/2025. The reporting person, who serves as a director, 10% owner, CEO and CIO, bought small amounts of common stock at $27.23 per share both directly and through affiliated entities.

After these transactions, the filing shows 249,030 shares of common stock held directly and significant indirect holdings through various vehicles. These include positions attributed to entities such as Horizon Common Inc., Horizon Kinetics Hard Assets, LLC, FRMO Corp, Kinetics Institutional Partners LP, Kinetics Partners LP, and Horizon Kinetics Asset Management LLC, as well as shares held by a spouse. A footnote explains that Mr. Stahl exercises discretion over certain shares and disclaims beneficial ownership beyond his pecuniary interest.

Horizon Kinetics Holding Corp (HKHC) reported insider transactions on a Form 4 for a director, 10% owner, and CEO/CIO. On 11/25/2025, the reporting person made several open-market purchases of common stock at $27 per share, including 12 shares held directly and smaller amounts through affiliated entities.

Following these transactions as of that date, the reporting person directly owned 249,018 HKHC shares and indirectly held 8,216,680 shares through Horizon Common Inc., along with additional indirect positions via entities such as FRMO Corp., Kinetics Institutional Partners LP, Kinetics Partners LP, Horizon Kinetics Asset Management LLC, and a spouse. The filing notes that Mr. Stahl exercises discretion over certain shares and disclaims beneficial ownership beyond his pecuniary interest.

Horizon Kinetics Holding Corp (HKHC) director reported a routine open-market purchase of company stock. On 11/25/2025, the reporting person bought 300 shares of common stock at a price of $27.28 per share, coded as a purchase transaction. Following this trade, the director now beneficially owns 1,000 shares of HKHC common stock in direct ownership form. This filing reflects compliance with insider reporting rules and shows the director increasing their personal stake in the company.

Horizon Kinetics Holding Corp (HKHC) insider buying was reported by a key executive and major shareholder. On 11/24/2025, the reporting person, who serves as CEO, CIO, director, and a 10% owner, purchased HKHC common stock in open market transactions at a price of $28 per share. These purchases included 12 shares held directly and additional shares held indirectly through affiliated entities.

After these transactions, the reporting person beneficially owned 249,006 shares directly and large indirect positions, including 8,216,672 shares through Horizon Common Inc., along with smaller holdings through other investment vehicles and a spouse. The filing notes that Mr. Stahl exercises discretion over certain shares and disclaims beneficial ownership except to the extent of his pecuniary interest.

Horizon Kinetics Holding Corp (HKHC) reported insider share purchases by a major executive and shareholder on a Form 4. On 11/21/2025, CEO, CIO, director and 10% owner Murray Stahl bought 12 shares of HKHC common stock directly at $28.25 per share and an additional 9 shares indirectly through Horizon Common Inc. at the same price. The filing also lists large indirect holdings of HKHC common stock through entities such as Horizon Common Inc., Horizon Kinetics Hard Assets, LLC, FRMO Corp., Kinetics Institutional Partners LP, Kinetics Partners LP, Horizon Kinetics Asset Management LLC and through his spouse. The explanation notes that Mr. Stahl exercises discretion over these shares and disclaims beneficial ownership except to the extent of his pecuniary interest.

Horizon Kinetics Holding Corp insider Mr. Stahl filed a Form 4 reporting small open-market purchases of the company’s common stock. On 11/20/2025, he bought 11 shares directly and 9 shares indirectly at a price of $27.5 per share.

After these transactions, he is shown as directly beneficially owning 248,982 shares and indirectly beneficially owning 8,216,655 shares through Horizon Common Inc., along with smaller indirect positions via entities such as Horizon Kinetics Hard Assets, LLC, FRMO Corp, several Kinetics partnerships, and his spouse. The filing notes that Mr. Stahl exercises discretion over these shares and disclaims beneficial ownership except to the extent of his pecuniary interest, and that the FRMO Corp total includes shares held by its wholly owned subsidiary Fromex Equity Corp.

Horizon Kinetics Holding Corp (HKHC) reported an insider stock purchase by its Chief Financial Officer. On 11/20/2025, the CFO acquired 100 shares of HKHC common stock in an open market purchase at a price of $29 per share. Following this transaction, the officer beneficially owns 120 shares of HKHC common stock, held directly. This Form 4 filing records the insider’s personal trading activity and updates the public record of management’s equity holdings.

Horizon Kinetics Holding Corp (HKHC) reported insider holdings on a Form 4. The reporting person, an officer listed as President, Cons Prod Div., noted 1,479 shares of common stock beneficially owned directly following the reported activity. The earliest transaction date is 10/15/2025. An explanatory note states this figure includes 377 stock options previously granted by Scott's Liquid Gold-Inc. on May 9, 2017, which expire on May 8, 2027.