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LINDA MAXWELL

CIK 1822674 · last filed 2026-07-23

LINDA MAXWELL is a corporate insider who has filed 15 SEC Form 4 insider transactions across 2 companies since 2020. The most recent filing, for UTHR, was dated Jul 23, 2026. Across all open-market trades the lifetime net is −$456.0K, making them a net seller over the disclosed history.

"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

$0

Companies

2

Total Filings

15

Lifetime Open-Market Net

-$456.0K

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
UTHR Director 0 $512.70 $0 -$456.0K 8 2026-07-23
IBRX Director — $7.87 — $0 7 2026-06-10

Recent Filings

15 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
2026-07-23 UTHR Grant (A) — $0 EDGAR
2026-06-10 IBRX Grant (A) — $0 EDGAR
2025-07-28 UTHR Grant (A) — $0 EDGAR
2025-06-20 IBRX Grant (A) — $0 EDGAR
2024-07-26 UTHR Grant (A) — $0 EDGAR
2024-06-13 IBRX Grant (A) — $0 EDGAR
2023-07-17 UTHR Grant (A) — $0 EDGAR
2023-06-15 IBRX Grant (A) — $0 EDGAR
2022-07-08 UTHR Grant (A) — $0 EDGAR
2022-06-15 IBRX Grant (A) — $0 EDGAR
Showing 1–10 of 15
Page 1 of 2
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.