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Mara G. Aspinall

CIK 1623049 · Director · last filed 2025-05-15

Mara G. Aspinall is a Director who has filed 40 SEC Form 4 insider transactions across 4 companies since 2015. The most recent filing, for OSUR, was dated Dec 4, 2025. Across all open-market trades the lifetime net is −$338.5K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.9M 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

$1.85M

Companies

4

Total Filings

40

Lifetime Open-Market Net

-$338.5K

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
OSUR Director 107,741 $4.05 $436.4K $96.3K 12 2025-05-15
CSTL Director 44,139 $32.03 $1.41M -$444.8K 12 2024-06-04
Veradigm Inc. (MDRX) Delisted Director 95,943 $6.81 $653.4K $10.0K 6 2021-05-27
SAFEGUARD SCIENTIFICS INC (SFE) Delisted Director — $0.46 — $0 9 2016-06-01

Recent Filings

40 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
2025-12-04 OSUR Notice (144) −89,716 -$225.0K EDGAR
2025-05-15 OSUR Mixed +64,351 -$17.7K EDGAR
2024-06-04 CSTL Exer (M) +8,636 $0 EDGAR
2024-05-16 OSUR Mixed +18,072 -$34.8K EDGAR
2023-06-06 CSTL Exer (M) +3,825 $0 EDGAR
2023-05-30 CSTL Grant (A) — $0 EDGAR
2023-05-17 OSUR Mixed +19,117 -$30.3K EDGAR
2022-08-31 OSUR Buy (P) +6,000 $25.1K EDGAR
2022-06-13 CSTL Exer (M) +830 $0 EDGAR
2022-06-06 CSTL Grant (A) — $0 EDGAR
Showing 1–10 of 40
Page 1 of 4
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.