MARK A EMALFARB
CIK 1328287 · CEO · last filed 2026-01-06
"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
$9.78M
Companies
2
Total Filings
15
Lifetime Open-Market Net
-$1.64M
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 |
|---|---|---|---|---|---|---|---|
| DYAI | CEO | 9,226,682 | $1.06 | $9.78M | -$1.64M | 13 | 2026-01-06 |
| DYADIC INTERNATIONAL INC (DIL) Delisted | President and CEO | 4,166,987 | — | — | $0 | 2 | 2019-04-12 |
Recent Filings · Page 2 of 2
15 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 |
|---|---|---|---|---|---|
| 2021-06-04 | DYAI | Mixed | +164,930 | -$222.2K | EDGAR |
| 2021-01-06 | DYAI | Grant (A) | — | $0 | EDGAR |
| 2020-01-03 | DYAI | Grant (A) | — | $0 | EDGAR |
| 2019-04-12 | DYADIC INTERNATIONAL INC (DIL) Delisted | Exer (M) | +50,000 | $85.5K | EDGAR |
| 2007-04-09 | DYADIC INTERNATIONAL INC (DIL) Delisted | Grant (A) | — | $0 | EDGAR |
Showing 11–15 of 15
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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.