John P. Butler
CIK 1591467 · CEO and President · last filed 2026-03-05
"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
$3.26M
Companies
4
Total Filings
53
Lifetime Open-Market Net
-$1.02M
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 |
|---|---|---|---|---|---|---|---|
| AKBA | CEO and President | 3,526,992 | $0.92 | $3.26M | -$999.1K | 36 | 2026-03-05 |
| Zynerba Pharmaceuticals, Inc. (ZYNE) Delisted | Director | 47,824 | $1.30 | $62.2K | $32.1K | 9 | 2023-10-11 |
| KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Director | 20,000 | — | — | $0 | 2 | 2017-06-20 |
| Relypsa Inc (RLYP) Delisted | Director | 2,250 | — | — | -$57.7K | 6 | 2016-09-02 |
Recent Filings · Page 2 of 6
53 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-03-03 | AKBA | Sell (S) | −91,868 | -$80.6K | EDGAR |
| 2023-03-01 | AKBA | Sell (S) | −38,632 | -$31.4K | EDGAR |
| 2023-02-02 | AKBA | Grant (A) | +293,125 | $0 | EDGAR |
| 2022-06-16 | Zynerba Pharmaceuticals, Inc. (ZYNE) Delisted | Mixed | +23,056 | -$54 | EDGAR |
| 2022-03-02 | AKBA | Mixed | +214,099 | -$171.1K | EDGAR |
| 2022-02-18 | AKBA | Other (J) | +1,248 | $0 | EDGAR |
| 2021-08-05 | Zynerba Pharmaceuticals, Inc. (ZYNE) Delisted | Grant (A) | +5,000 | $0 | EDGAR |
| 2021-04-01 | AKBA | Sell (S) | −4,109 | -$14.0K | EDGAR |
| 2021-03-18 | AKBA | Grant (A) | +39,520 | $0 | EDGAR |
| 2021-03-02 | AKBA | Mixed | +187,410 | -$169.8K | EDGAR |
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.