Steven L. Hoerter
CIK 1533451 · President and CEO · last filed 2026-08-04
Steven L. Hoerter is a President and CEO who has filed 74 SEC Form 4 insider transactions across 8 companies since 2012. The most recent filing, for MBX, was dated Aug 4, 2026. Across all open-market trades the lifetime net is −$9.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.4M across reported positions.
"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.
$6.44M
8
74
-$9.16M
Filer Profile
200 SMITH STREET
WALTHAM, MA 02451
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MBX | President and CEO | 102,938 | $59.02 | $6.08M | $265.0K | 10 | 2026-08-04 |
| CCCC | Director | — | $3.51 | — | $0 | 3 | 2026-06-26 |
| ORIC | Director | — | $12.04 | — | $0 | 6 | 2026-01-06 |
| Deciphera Pharmaceuticals, Inc. (DCPH) Delisted | President and CEO | 72,763 | $25.59 | $1.86M | -$1.33M | 21 | 2024-06-11 |
| CONSTELLATION PHARMACEUTICALS INC (CNST) Delisted | Director | — | $33.99 | — | $0 | 4 | 2021-06-04 |
| AGIO | Chief Commercial Officer | 10,941 | $33.60 | $367.6K | -$3.75M | 16 | 2019-03-05 |
| Ignyta, Inc. (RXDX) Delisted | Director | — | $199.92 | — | $0 | 2 | 2017-06-19 |
| Clovis Oncology, Inc. (CLVS) Delisted | See Remarks | 0 | $0.08 | $0 | -$4.34M | 9 | 2015-03-09 |
Recent Filings
74 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-04 | MBX | Grant (A) | +71,000 | $0 | EDGAR |
| 2026-06-26 | CCCC | Grant (A) | — | $0 | EDGAR |
| 2026-06-05 | MBX | Grant (A) | — | $0 | EDGAR |
| 2026-05-04 | MBX | Grant (A) | +11,938 | $0 | EDGAR |
| 2026-04-22 | MBX | Grant (A) | — | $0 | EDGAR |
| 2026-04-22 | MBX | Grant (A) | — | $0 | EDGAR |
| 2026-01-06 | ORIC | Grant (A) | — | $0 | EDGAR |
| 2025-11-25 | MBX | Grant (A) | — | $0 | EDGAR |
| 2025-11-07 | MBX | Grant (A) | — | $0 | EDGAR |
| 2025-10-20 | MBX | Buy (P) | +20,000 | $265.0K | EDGAR |
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.