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Alexander C. Karp

CIK 1823951 · See Remarks · last filed 2026-08-24

Alexander C. Karp is a corporate insider who has filed 97 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing, for PLTR, was dated Aug 24, 2026. Across all open-market trades the lifetime net is −$3.49B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.23B 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

$1.23B

Companies

1

Total Filings

97

Lifetime Open-Market Net

-$3.49B

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
PLTR See Remarks 6,834,606 $179.92 $1.23B -$3.49B 58 2026-08-24

Recent Filings

97 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
2026-08-24 PLTR Mixed — -$86.06M EDGAR
2026-08-20 PLTR Notice (144) −402,348 -$70.34M EDGAR
2026-08-20 PLTR Notice (144) −90,000 -$15.77M EDGAR
2026-05-22 PLTR Mixed — -$54.11M EDGAR
2026-05-20 PLTR Notice (144) −397,744 -$54.11M EDGAR
2026-02-24 PLTR Mixed — -$65.96M EDGAR
2026-02-20 PLTR Notice (144) −403,025 -$53.89M EDGAR
2026-02-20 PLTR Notice (144) −90,000 -$12.14M EDGAR
2025-11-24 PLTR Mixed — -$66.04M EDGAR
2025-11-20 PLTR Notice (144) −585,000 -$95.93M EDGAR
Showing 1–10 of 97
Page 1 of 10
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.