Herndon Mark

Insider CIK 1754318 · SFE SVP & Chief Financial Officer · HKHC Chief Financial Officer

Track record

See how this insider's past purchases performed 30 and 90 days later, and a conviction score on each buy.

Ticker	Code	Trade	Filed	Shares	Price	Value	Owned after
HKHC Horizon Kinetics Holding C	P Buy	2026-08-20	2026-08-20	200	$26.75	$5.3K	550	SEC↗
HKHC Horizon Kinetics Holding C	P Buy	2026-08-20	2026-08-20	200	$26.75	$5.3K	550	SEC↗
HKHC Horizon Kinetics Holding C	P Buy	2026-08-19	2026-08-20	50	$26.50	$1.3K	350	SEC↗
HKHC Horizon Kinetics Holding C	P Buy	2026-08-19	2026-08-20	50	$26.50	$1.3K	350	SEC↗
HKHC Horizon Kinetics Holding C	P Buy	2026-05-20	2026-05-21	100	$27.85	$2.8K	300	SEC↗
HKHC Horizon Kinetics Holding C	P Buy	2026-03-18	2026-03-19	80	$33.03	$2.6K	200	SEC↗
HKHC Horizon Kinetics Holding C	P Buy	2025-11-20	2025-11-21	100	$29.00	$2.9K	120	SEC↗
HKHC Horizon Kinetics Holding C	P Buy	2025-06-04	2025-06-05	20	$40.18	$804	20	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	F Tax w/h	2023-01-17	2023-01-19	13,156	$3.13	$41.2K	57,469	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	A Award	2023-01-17	2023-01-19	26,835	—	$0	70,625	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	A Award	2022-01-17	2022-01-18	11,526	—	$0	49,138	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	F Tax w/h	2022-01-17	2022-01-18	5,348	$7.10	$38.0K	43,790	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	A Award	2021-01-20	2021-01-21	11,323	—	$0	41,323	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	F Tax w/h	2021-01-20	2021-01-21	3,711	$6.57	$24.4K	37,612	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	P Buy	2020-05-06	2020-05-07	2,000	$6.25	$12.5K	30,000	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	P Buy	2018-12-07	2018-12-10	10,000	$9.44	$94.4K	28,000	SEC↗
SFE SAFEGUARD SCIENTIFICS INC	A Award	2018-10-23	2018-10-25	18,000	—	$0	18,000	SEC↗