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Randolph Altschuler

CIK 1869814 · Chief Executive Officer · last filed 2026-07-06

Randolph Altschuler is a Chief Executive Officer who has filed 43 SEC Form 4 insider transactions across 3 companies since 2021. The most recent filing shows the insider sold $533.9K of XMTR on Jul 6, 2026. Across all open-market trades the lifetime net is −$18.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $141.3M 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.

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Disclosed Exposure

$141.31M

Companies

3

Total Filings

43

Lifetime Open-Market Net

-$18.55M

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
XMTR Chief Executive Officer 1,560,893 $90.53 $141.31M -$18.55M 30 2026-07-06
OPLN Director — $37.27 — $0 1 2026-06-08
OPENLANE, Inc. (KAR) Delisted Director — $30.88 — $0 2 2025-06-09

Recent Filings

43 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
2026-07-06 XMTR Sell (S) −5,722 -$533.9K EDGAR
2026-07-02 XMTR Notice (144) −5,722 -$556.3K EDGAR
2026-06-08 OPLN Grant (A) — $0 EDGAR
2026-05-22 XMTR Sell (S) −50,000 -$4.39M EDGAR
2026-05-21 XMTR Notice (144) −30,000 -$2.63M EDGAR
2026-05-21 XMTR Notice (144) −20,000 -$1.76M EDGAR
2026-04-03 XMTR Sell (S) −5,721 -$238.7K EDGAR
2026-04-02 XMTR Notice (144) −5,721 -$238.7K EDGAR
2026-03-12 XMTR Grant (A) +67,816 $0 EDGAR
2026-02-26 XMTR Notice (144) −31,928 -$1.39M EDGAR
Showing 1–10 of 43
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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.