ROBERT W STALLINGS
CIK 900764 · Executive Chairman · last filed 2026-04-23
"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
$12.70M
Companies
3
Total Filings
133
Lifetime Open-Market Net
$32.16M
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.
Recent Filings · Page 8 of 14
133 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 |
|---|---|---|---|---|---|
| 2023-05-10 | TCBIO | Buy (P) | +4,000 | $66.0K | EDGAR |
| 2023-05-08 | TCBIO | Buy (P) | +5,500 | $161.7K | EDGAR |
| 2023-05-04 | TCBIO | Buy (P) | +21,000 | $757.8K | EDGAR |
| 2023-05-02 | TCBIO | Buy (P) | +26,500 | $1.25M | EDGAR |
| 2023-04-27 | TCBIO | Buy (P) | +9,500 | $442.7K | EDGAR |
| 2023-04-27 | TCBIO | Buy (P) | +15,000 | $771.6K | EDGAR |
| 2023-04-25 | TCBIO | Buy (P) | +27,000 | $1.20M | EDGAR |
| 2023-04-20 | TCBIO | Mixed | +1,377 | $0 | EDGAR |
| 2023-03-03 | TCBIO | Buy (P) | +10,000 | $433.4K | EDGAR |
| 2023-02-24 | TCBIO | Buy (P) | +10,000 | $211.8K | 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.