Home

MARK F FURLONG

CIK 1131355 · President and CEO · last filed 2026-06-18

MARK F FURLONG is a President and CEO who has filed 166 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for ALTI, was dated Jun 18, 2026. Across all open-market trades the lifetime net is −$849.0K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.4M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$2.37M

Companies

5

Total Filings

166

Lifetime Open-Market Net

-$849.0K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ALTI Director 96,408 $3.63 $350.0K $135.8K 10 2026-06-18
KFRC Director 34,527 $58.49 $2.02M -$2.93M 78 2026-06-16
HESKA CORP (HSKA) Delisted Director 0 $119.99 $0 $0 6 2023-06-14
BOSTON PRIVATE FINANCIAL HOLDINGS INC (BPFH) Delisted Director 44,900 $14.75 $662.3K $131.7K 22 2021-05-17
MI Chairman, CEO and President 239 $9.17 $2.2K $1.81M 44 2011-07-06

Recent Filings

166 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-06-18 ALTI Mixed +30,732 $0 EDGAR
2026-06-16 KFRC Other (J) +38 $0 EDGAR
2026-04-28 KFRC Grant (A) +4,782 $0 EDGAR
2026-03-10 KFRC Other (J) +48 $0 EDGAR
2025-12-09 KFRC Other (J) +43 $0 EDGAR
2025-09-16 KFRC Other (J) +41 $0 EDGAR
2025-07-30 ALTI Mixed +22,312 $0 EDGAR
2025-06-23 ALTI Grant (A) — $0 EDGAR
2025-06-17 KFRC Other (J) +32 $0 EDGAR
2025-06-16 ALTI Mixed +22,312 $0 EDGAR
Showing 1–10 of 166
Page 1 of 17
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.