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RICHARD A SANDBERG

CIK 1245055 · VP, CFO, Treasurer, Asst. Sec. · last filed 2026-05-26

RICHARD A SANDBERG is a VP, CFO, Treasurer, Asst. Sec. who has filed 70 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing shows the insider sold $22.5K of PRPO on May 26, 2026. Across all open-market trades the lifetime net is −$889.3K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $259.0K 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

$259.0K

Companies

6

Total Filings

70

Lifetime Open-Market Net

-$889.3K

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
PRPO Director 11,142 $22.67 $252.6K $113.0K 31 2026-05-26
Oxford Immunotec Global PLC (OXFD) Delisted Director 4,081 — — -$1.00M 27 2020-06-26
ETH Director 350 $18.29 $6.4K $0 4 2009-07-27
NORTH AMERICAN SCIENTIFIC INC (NASM) Delisted Director — — — $0 1 2008-05-02
NORTH AMERICAN SCIENTIFIC INC (NASI) Delisted Director — — — $0 1 2007-06-06
MZT Holdings, Inc. (MZT) Delisted VP, CFO, Treasurer, Asst. Sec. 43,598 — — $0 2 2007-04-04

Recent Filings

70 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
2026-05-26 PRPO Sell (S) −900 -$22.5K EDGAR
2026-05-21 PRPO Sell (S) −3,134 -$77.8K EDGAR
2026-05-19 PRPO Notice (144) −4,034 -$100.2K EDGAR
2026-01-06 PRPO Grant (A) — $0 EDGAR
2025-05-30 PRPO Buy (P) +1,399 $14.0K EDGAR
2025-05-28 PRPO Buy (P) +101 $990 EDGAR
2025-05-27 PRPO Buy (P) +500 $4.7K EDGAR
2025-05-22 PRPO Buy (P) +8,035 $74.5K EDGAR
2025-05-22 PRPO Buy (P) +4,965 $41.9K EDGAR
2025-05-21 PRPO Buy (P) +4,965 $41.9K EDGAR
Showing 1–10 of 70
Page 1 of 7
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.