JOHN D DIEKMAN
CIK 1240357 · last filed 2025-06-23
"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
$4.20M
Companies
5
Total Filings
26
Lifetime Open-Market Net
-$75.27M
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 |
|---|---|---|---|---|---|---|---|
| ZLAB | Director | 99,769 | $17.07 | $1.70M | -$444.9K | 9 | 2025-06-23 |
| Q32 Bio Inc. (FIXX) Delisted | 10%+ Owner | 201,435 | $16.82 | $3.39M | -$36.76M | 1 | 2020-12-16 |
| APRE | 75,965 | $0.69 | $52.1K | -$39.85M | 1 | 2020-10-07 | |
| IDYA | Director | 84,420 | $28.98 | $2.45M | $2.50M | 2 | 2019-12-19 |
| AFFYMETRIX INC (AFFX) Delisted | Director | 103,398 | — | — | -$725.4K | 13 | 2012-05-15 |
Recent Filings · Page 3 of 3
26 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2009-06-18 | AFFYMETRIX INC (AFFX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-06-12 | AFFYMETRIX INC (AFFX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2007-06-15 | AFFYMETRIX INC (AFFX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2007-03-23 | AFFYMETRIX INC (AFFX) Delisted | Sell (S) | −10,000 | -$300.0K | EDGAR |
| 2007-02-12 | AFFYMETRIX INC (AFFX) Delisted | Sell (S) | −5,000 | -$138.8K | EDGAR |
| 2007-02-05 | AFFYMETRIX INC (AFFX) Delisted | Mixed | — | $542.5K | EDGAR |
Showing 21–26 of 26
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Page 3 of 3
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.