John D Quisel
CIK 1586788 · Chief Executive Officer · last filed 2026-06-05
"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
$15.37M
Companies
3
Total Filings
60
Lifetime Open-Market Net
-$17.17M
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 |
|---|---|---|---|---|---|---|---|
| GOSS | Director | — | $0.16 | — | $0 | 4 | 2026-06-05 |
| IRON | Chief Executive Officer | 226,064 | $67.99 | $15.37M | -$9.97M | 16 | 2026-02-17 |
| ACCELERON PHARMA INC (XLRN) Delisted | EVP, Chief Business Officer | 57,558 | $178.75 | $10.29M | -$7.20M | 39 | 2020-01-03 |
Recent Filings · Page 4 of 6
60 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2018-01-04 | ACCELERON PHARMA INC (XLRN) Delisted | Sell (S) | −4,333 | -$183.8K | EDGAR |
| 2017-09-14 | ACCELERON PHARMA INC (XLRN) Delisted | Sell (S) | −5,113 | -$196.4K | EDGAR |
| 2017-03-14 | ACCELERON PHARMA INC (XLRN) Delisted | Grant (A) | +7,900 | $0 | EDGAR |
| 2017-01-06 | ACCELERON PHARMA INC (XLRN) Delisted | Sell (S) | −1,700 | -$46.5K | EDGAR |
| 2016-09-23 | ACCELERON PHARMA INC (XLRN) Delisted | Mixed | −20,000 | -$1.37M | EDGAR |
| 2016-09-13 | ACCELERON PHARMA INC (XLRN) Delisted | Mixed | −5,000 | -$601.3K | EDGAR |
| 2016-03-07 | ACCELERON PHARMA INC (XLRN) Delisted | Grant (A) | +5,100 | $0 | EDGAR |
| 2015-09-16 | ACCELERON PHARMA INC (XLRN) Delisted | Mixed | — | -$162.1K | EDGAR |
| 2015-09-11 | ACCELERON PHARMA INC (XLRN) Delisted | Grant (A) | +40,000 | $0 | EDGAR |
| 2015-08-17 | ACCELERON PHARMA INC (XLRN) Delisted | Mixed | — | -$139.3K | 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.