WaveMan · Form 4
Horizon Kinetics Asset Management LLC insider trades
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Horizon Kinetics Asset Management LLC insider trades

Horizon Kinetics Asset Management LLC has filed 952 Form 4s with the SEC that we hold, for Texas Pacific Land Corp (TPL) (10% owner), RENN Fund, Inc. (RCG) (10% owner) and Miami International Holdings, INC. (MIAX) (10% owner). Across all of them we count 1,939 purchases worth $9.8M and 1 sale worth $5.0M reported on Form 4. In the last 12 months: 333 purchases ($631.0K) and 1 sale ($5.0M). The largest single trade was a sale of 121,054 shares of Miami International Holdings, INC. worth $5.0M, dated 2026-03-02. The first filing on our record is dated 2021-07-01 and the latest 2026-10-01.

Texas Pacific Land Corp (TPL)

10% owner · 862 filings · 1,845 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-06-30P, purchase reported on Form 42$3.2K2021-07-01
2021-06-30P, purchase reported on Form 412$19.2K2021-07-01
2021-06-30P, purchase reported on Form 41$1.6K2021-07-01
2021-06-30P, purchase reported on Form 45$8.0K2021-07-01
2021-07-01P, purchase reported on Form 41$1.6K2021-07-02
2021-07-01P, purchase reported on Form 42$3.2K2021-07-02
2021-07-01P, purchase reported on Form 412$19.4K2021-07-02
2021-07-01P, purchase reported on Form 45$8.1K2021-07-02
2021-07-02P, purchase reported on Form 42$3.2K2021-07-06
2021-07-02P, purchase reported on Form 41$1.6K2021-07-06
2021-07-02P, purchase reported on Form 412$19.1K2021-07-06
2021-07-02P, purchase reported on Form 45$8.0K2021-07-06
2021-07-08P, purchase reported on Form 41$1.5K2021-07-09
2021-07-08P, purchase reported on Form 42$2.9K2021-07-09
2021-07-08P, purchase reported on Form 45$7.3K2021-07-09
2021-07-08P, purchase reported on Form 413$19.0K2021-07-09
2021-07-12P, purchase reported on Form 41$1.5K2021-07-13
2021-07-12P, purchase reported on Form 412$18.5K2021-07-13
2021-07-12P, purchase reported on Form 42$3.1K2021-07-13
2021-07-12P, purchase reported on Form 45$7.7K2021-07-13
2021-07-13P, purchase reported on Form 41$1.5K2021-07-14
2021-07-13P, purchase reported on Form 42$3.1K2021-07-14
2021-07-13P, purchase reported on Form 45$7.6K2021-07-14
2021-07-13P, purchase reported on Form 412$18.3K2021-07-14
2021-07-15P, purchase reported on Form 41$1.5K2021-07-16
2021-07-15P, purchase reported on Form 42$2.9K2021-07-16
2021-07-15P, purchase reported on Form 412$17.4K2021-07-16
2021-07-15P, purchase reported on Form 45$7.3K2021-07-16
2021-07-16P, purchase reported on Form 41$1.4K2021-07-19
2021-07-16P, purchase reported on Form 45$7.1K2021-07-19
2021-07-16P, purchase reported on Form 42$2.8K2021-07-19
2021-07-16P, purchase reported on Form 412$17.0K2021-07-19
2021-07-19P, purchase reported on Form 42$2.8K2021-07-20
2021-07-19P, purchase reported on Form 41$1.4K2021-07-20
2021-07-19P, purchase reported on Form 45$7.0K2021-07-20
2021-07-19P, purchase reported on Form 413$18.2K2021-07-20
2021-07-20P, purchase reported on Form 42$3.0K2021-07-21
2021-07-20P, purchase reported on Form 41$1.5K2021-07-21
2021-07-20P, purchase reported on Form 413$19.4K2021-07-21
2021-07-20P, purchase reported on Form 45$7.5K2021-07-21
2021-07-22P, purchase reported on Form 41$1.5K2021-07-23
2021-07-22P, purchase reported on Form 42$3.0K2021-07-23
2021-07-22P, purchase reported on Form 45$7.5K2021-07-23
2021-07-22P, purchase reported on Form 413$19.6K2021-07-23
2021-07-23P, purchase reported on Form 41$1.5K2021-07-26
2021-07-23P, purchase reported on Form 413$19.5K2021-07-26
2021-07-23P, purchase reported on Form 42$3.0K2021-07-26
2021-07-23P, purchase reported on Form 45$7.5K2021-07-26
2021-07-27P, purchase reported on Form 41$1.4K2021-07-28
2021-07-27P, purchase reported on Form 42$2.9K2021-07-28
2021-07-27P, purchase reported on Form 45$7.2K2021-07-28
2021-07-27P, purchase reported on Form 46$8.7K2021-07-28
2021-07-29P, purchase reported on Form 46$8.8K2021-07-30
2021-07-29P, purchase reported on Form 41$1.5K2021-07-30
2021-07-29P, purchase reported on Form 42$2.9K2021-07-30
2021-07-29P, purchase reported on Form 44$5.9K2021-07-30
2021-07-30P, purchase reported on Form 41$1.5K2021-08-02
2021-07-30P, purchase reported on Form 412$17.9K2021-08-02
2021-07-30P, purchase reported on Form 44$6.0K2021-08-02
2021-07-30P, purchase reported on Form 42$3.0K2021-08-02
2021-08-02P, purchase reported on Form 41$1.5K2021-08-03
2021-08-02P, purchase reported on Form 42$3.0K2021-08-03
2021-08-02P, purchase reported on Form 44$5.9K2021-08-03
2021-08-02P, purchase reported on Form 412$17.7K2021-08-03
2021-08-03P, purchase reported on Form 44$5.9K2021-08-04
2021-08-03P, purchase reported on Form 41$1.5K2021-08-04
2021-08-03P, purchase reported on Form 42$3.0K2021-08-04
2021-08-03P, purchase reported on Form 412$17.8K2021-08-04
2021-08-05P, purchase reported on Form 42$2.9K2021-08-06
2021-08-05P, purchase reported on Form 412$17.6K2021-08-06
2021-08-05P, purchase reported on Form 41$1.5K2021-08-06
2021-08-05P, purchase reported on Form 44$5.9K2021-08-06
2021-08-06P, purchase reported on Form 44$5.9K2021-08-09
2021-08-06P, purchase reported on Form 41$1.5K2021-08-09
2021-08-06P, purchase reported on Form 412$17.8K2021-08-09
2021-08-06P, purchase reported on Form 42$3.0K2021-08-09
2021-08-11P, purchase reported on Form 412$17.9K2021-08-12
2021-08-11P, purchase reported on Form 41$1.5K2021-08-12
2021-08-11P, purchase reported on Form 42$3.0K2021-08-12
2021-08-11P, purchase reported on Form 44$6.0K2021-08-12
2021-08-12P, purchase reported on Form 41$1.5K2021-08-13
2021-08-12P, purchase reported on Form 42$3.0K2021-08-13
2021-08-12P, purchase reported on Form 412$18.1K2021-08-13
2021-08-12P, purchase reported on Form 43$4.5K2021-08-13
2021-08-17P, purchase reported on Form 42$2.9K2021-08-18
2021-08-17P, purchase reported on Form 41$1.4K2021-08-18
2021-08-17P, purchase reported on Form 412$17.1K2021-08-18
2021-08-17P, purchase reported on Form 43$4.3K2021-08-18
2021-08-18P, purchase reported on Form 42$2.7K2021-08-19
2021-08-18P, purchase reported on Form 43$4.1K2021-08-19
2021-08-18P, purchase reported on Form 41$1.4K2021-08-19
2021-08-18P, purchase reported on Form 412$16.4K2021-08-19
2021-08-25P, purchase reported on Form 43$4.3K2021-08-26
2021-08-25P, purchase reported on Form 412$17.0K2021-08-26
2021-08-25P, purchase reported on Form 41$1.4K2021-08-26
2021-08-25P, purchase reported on Form 42$2.8K2021-08-26
2021-08-26P, purchase reported on Form 412$16.6K2021-08-27
2021-08-26P, purchase reported on Form 41$1.4K2021-08-27
2021-08-26P, purchase reported on Form 42$2.8K2021-08-27
2021-08-27P, purchase reported on Form 41$1.4K2021-08-30
Newest 100 of 1,845

RENN Fund, Inc. (RCG)

10% owner · 85 filings · 91 purchases and sales
Trade dateCodeSharesValue as filedFiled
2026-04-07P, purchase reported on Form 4180$5832026-04-09
2026-04-07P, purchase reported on Form 4296$9592026-04-09
2026-04-07P, purchase reported on Form 418$582026-04-09
2026-04-07P, purchase reported on Form 482$2662026-04-09
2026-04-07P, purchase reported on Form 4360$1.2K2026-04-09
2026-05-27P, purchase reported on Form 4756$2.0K2026-05-29
2026-05-28P, purchase reported on Form 4756$2.1K2026-05-29
2026-05-29P, purchase reported on Form 4756$2.2K2026-06-01
2026-06-01P, purchase reported on Form 4756$2.1K2026-06-02
2026-06-02P, purchase reported on Form 4756$2.0K2026-06-03
2026-06-03P, purchase reported on Form 4756$2.1K2026-06-04
2026-06-04P, purchase reported on Form 4756$2.1K2026-06-05
2026-06-05P, purchase reported on Form 4756$2.1K2026-06-08
2026-06-08P, purchase reported on Form 4756$2.1K2026-06-09
2026-06-09P, purchase reported on Form 4756$2.1K2026-06-10
2026-06-10P, purchase reported on Form 4756$2.1K2026-06-11
2026-06-11P, purchase reported on Form 4756$2.1K2026-06-12
2026-06-12P, purchase reported on Form 4756$2.1K2026-06-15
2026-06-15P, purchase reported on Form 4756$2.2K2026-06-16
2026-06-16P, purchase reported on Form 4756$2.1K2026-06-17
2026-06-17P, purchase reported on Form 4756$2.2K2026-06-18
2026-06-18P, purchase reported on Form 4756$2.1K2026-06-22
2026-06-22P, purchase reported on Form 4756$2.1K2026-06-23
2026-06-23P, purchase reported on Form 4756$2.1K2026-06-24
2026-06-24P, purchase reported on Form 4756$2.1K2026-06-25
2026-06-25P, purchase reported on Form 4756$2.1K2026-06-26
2026-06-26P, purchase reported on Form 4756$2.1K2026-06-29
2026-06-29P, purchase reported on Form 4756$2.2K2026-06-30
2026-06-30P, purchase reported on Form 4756$2.2K2026-07-01
2026-07-01P, purchase reported on Form 4756$2.3K2026-07-02
2026-07-02P, purchase reported on Form 4756$2.4K2026-07-06
2026-07-06P, purchase reported on Form 4756$2.3K2026-07-07
2026-07-07P, purchase reported on Form 4756$2.3K2026-07-08
2026-07-08P, purchase reported on Form 4756$2.3K2026-07-09
2026-07-09P, purchase reported on Form 4756$2.3K2026-07-10
2026-07-10P, purchase reported on Form 4756$2.3K2026-07-13
2026-07-13P, purchase reported on Form 4756$2.3K2026-07-14
2026-07-14P, purchase reported on Form 4756$2.3K2026-07-15
2026-07-15P, purchase reported on Form 4756$2.3K2026-07-16
2026-07-16P, purchase reported on Form 4756$2.3K2026-07-17
2026-07-17P, purchase reported on Form 4756$2.3K2026-07-20
2026-07-20P, purchase reported on Form 4756$2.3K2026-07-21
2026-07-21P, purchase reported on Form 4756$2.3K2026-07-22
2026-07-22P, purchase reported on Form 4756$2.3K2026-07-23
2026-07-23P, purchase reported on Form 4756$2.3K2026-07-24
2026-07-24P, purchase reported on Form 4756$2.3K2026-07-27
2026-07-27P, purchase reported on Form 4756$2.3K2026-07-28
2026-07-28P, purchase reported on Form 4756$2.3K2026-07-29
2026-07-29P, purchase reported on Form 4756$2.3K2026-07-30
2026-07-30P, purchase reported on Form 4756$2.3K2026-07-31
2026-07-31P, purchase reported on Form 4756$2.3K2026-08-03
2026-08-03P, purchase reported on Form 4756$2.3K2026-08-04
2026-08-04P, purchase reported on Form 4756$2.3K2026-08-05
2026-08-05P, purchase reported on Form 4756$2.2K2026-08-06
2026-08-06P, purchase reported on Form 4756$2.2K2026-08-07
2026-08-07P, purchase reported on Form 4756$2.3K2026-08-10
2026-08-10P, purchase reported on Form 4756$2.2K2026-08-11
2026-08-11P, purchase reported on Form 4756$2.3K2026-08-12
2026-08-12P, purchase reported on Form 4756$2.2K2026-08-13
2026-08-13P, purchase reported on Form 4756$2.2K2026-08-14
2026-08-14P, purchase reported on Form 4756$2.1K2026-08-17
2026-08-17P, purchase reported on Form 4756$2.1K2026-08-18
2026-08-18P, purchase reported on Form 4756$2.1K2026-08-19
2026-08-19P, purchase reported on Form 4756$2.2K2026-08-20
2026-08-20P, purchase reported on Form 4756$2.2K2026-08-21
2026-08-21P, purchase reported on Form 4756$2.2K2026-08-24
2026-08-24P, purchase reported on Form 4756$2.2K2026-08-25
2026-08-25P, purchase reported on Form 4756$2.2K2026-08-26
2026-08-26P, purchase reported on Form 4756$2.2K2026-08-27
2026-08-27P, purchase reported on Form 4756$2.2K2026-08-28
2026-08-28P, purchase reported on Form 4756$2.2K2026-08-31
2026-08-31P, purchase reported on Form 4756$2.2K2026-09-01
2026-09-01P, purchase reported on Form 4756$2.2K2026-09-02
2026-09-02P, purchase reported on Form 4756$2.2K2026-09-03
2026-09-03P, purchase reported on Form 4756$2.2K2026-09-04
2026-09-04P, purchase reported on Form 4756$2.2K2026-09-08
2026-09-08P, purchase reported on Form 4756$2.2K2026-09-10
2026-09-09P, purchase reported on Form 4756$2.2K2026-09-10
2026-09-10P, purchase reported on Form 4756$2.2K2026-09-11
2026-09-11P, purchase reported on Form 4756$2.3K2026-09-14
2026-09-14P, purchase reported on Form 4756$2.3K2026-09-15
2026-09-15P, purchase reported on Form 4756$2.3K2026-09-16
2026-09-16P, purchase reported on Form 4756$2.3K2026-09-17
2026-09-17P, purchase reported on Form 4756$2.3K2026-09-18
2026-09-18P, purchase reported on Form 4756$2.3K2026-09-21
2026-09-21P, purchase reported on Form 4756$2.3K2026-09-22
2026-09-22P, purchase reported on Form 4756$2.3K2026-09-23
2026-09-23P, purchase reported on Form 4756$2.3K2026-09-24
2026-09-24P, purchase reported on Form 4756$2.3K2026-09-25
2026-09-25P, purchase reported on Form 4756$2.3K2026-09-28
2026-09-28P, purchase reported on Form 4756$2.3K2026-09-29

Miami International Holdings, INC. (MIAX)

10% owner · 5 filings · 4 purchases and sales
Trade dateCodeSharesValue as filedFiled
2025-08-28P, purchase reported on Form 434,470$1.2M2025-09-30
2025-10-03P, purchase reported on Form 42$842025-10-06
2026-03-02S, sale reported on Form 4121,054$5.0M2026-03-04
2026-03-04P, purchase reported on Form 47,200$312.3K2026-03-05
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1056823) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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