RICHARD A SANDBERG
CIK 1245055 · VP, CFO, Treasurer, Asst. Sec. · last filed 2026-05-26
"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 · Page 5 of 7
70 filingsInsider 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 |
|---|---|---|---|---|---|
| 2019-05-03 | Oxford Immunotec Global PLC (OXFD) Delisted | Sell (S) | −3,000 | -$48.2K | EDGAR |
| 2019-02-01 | Oxford Immunotec Global PLC (OXFD) Delisted | Sell (S) | −3,000 | -$42.8K | EDGAR |
| 2018-11-01 | Oxford Immunotec Global PLC (OXFD) Delisted | Sell (S) | −3,000 | -$46.5K | EDGAR |
| 2018-08-03 | Oxford Immunotec Global PLC (OXFD) Delisted | Sell (S) | −3,000 | -$39.5K | EDGAR |
| 2018-06-21 | Oxford Immunotec Global PLC (OXFD) Delisted | Grant (A) | — | $0 | EDGAR |
| 2018-05-02 | Oxford Immunotec Global PLC (OXFD) Delisted | Mixed | — | -$38.0K | EDGAR |
| 2018-02-16 | Oxford Immunotec Global PLC (OXFD) Delisted | Mixed | — | -$35.8K | EDGAR |
| 2017-11-02 | Oxford Immunotec Global PLC (OXFD) Delisted | Mixed | — | -$37.8K | EDGAR |
| 2017-09-05 | Oxford Immunotec Global PLC (OXFD) Delisted | Mixed | — | -$45.0K | EDGAR |
| 2017-06-08 | Oxford Immunotec Global PLC (OXFD) Delisted | Grant (A) | — | $0 | EDGAR |
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.
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.