FULC
Fulcrum Therapeutics, Inc. · Healthcare · Market cap $278.5M
Insiders bought $1.4M net in the last 90 days ·1 seller, 1 buyer· 1 of 1 sale under Rule 10b5-1 plans· latest Form 4 filed Jul 21, 2026
Insider Buying
$1.5M
reported purchases (SEC code P)
Insider Selling
$59.2M
reported sales (SEC code S)
Unique Insiders
5
in the rolling window
Latest filing
Jul 21, 2026
TANG KEVIN
Fulcrum Therapeutics, Inc. (FULC) has 9 SEC Form 4 filings (15 transaction rows) in the rolling window, disclosed by 5 distinct insiders. Most recent filing: Jul 21, 2026.
Inside the rolling window, 5 insiders at Fulcrum Therapeutics, Inc. reported 5 open-market purchases totaling $1.5M and 6 open-market sales totaling $59.2M. The most active filer is 10% Owner TANG KEVIN with 5 filings. Insiders have net bought $918K over the trailing 6 months. The most recent open-market filing is a purchase of 116,671 shares by 10% Owner TANG KEVIN, dated Jul 16, 2026, worth $415K.
- Industry:Biotechnology
- CEO:Alexander C. Sapir
- Employees:9
- HQ:Cambridge, MA, US
- IPO:2019-07-18
| Source | |||||||
|---|---|---|---|---|---|---|---|
| 10% Owner | Purchase | 116,671 | $415K | Jul 21 | -0.8% | SEC ↗ | |
| 10% Owner | Purchase | 50,945 | $179K | Jul 21 | -0.8% | SEC ↗ | |
| 10% Owner | Purchase | 12,966 | $46K | Jul 15 | +2.5% | SEC ↗ | |
| 10% Owner | Purchase | 129,603 | $463K | Jul 15 | +2.5% | SEC ↗ | |
| 10% Owner | Purchase | 107,377 | $382K | Jul 15 | +2.5% | SEC ↗ | |
Ezekowitz AlanFirst filing | Director | Sale | 18,000 | $66K | Jun 30 | -0.3% | SEC ↗ |
| Director | Sale | 30,000 | $341K | Feb 4 | -63.1% | SEC ↗ | |
| Director | Sale | 15,000 | $161K | Feb 4 | -63.1% | SEC ↗ | |
Oltmans Curtis GaleFirst filing | Chief Legal Officer | Sale | 3,452 | $45K | Dec 17 | — | SEC ↗ |
| 10% Owner | Sale | 4,175,139 | $58.4M | Dec 10 | — | SEC ↗ | |
Gould Robert JFirst filing | Director | Sale | 15,000 | $165K | Nov 21 | — | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does FULC have?
Fulcrum Therapeutics, Inc. (FULC) has 9 SEC Form 4 filings (15 transaction rows) in the rolling 365-day window, disclosed by 5 distinct insiders. Most recent filing: Jul 21, 2026.
When was the most recent SEC Form 4 filing for FULC?
The most recent Form 4 filing for FULC on Tracefour is dated Jul 21, 2026.
Who is the most active insider at FULC?
The most active SEC Form 4 filer at FULC in the rolling window is 10% Owner TANG KEVIN, with 5 filings.
What is the net insider flow at FULC over the last 6 months?
Over the trailing 180 days, insiders at FULC have net bought $918K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at FULC in the current window?
Inside the rolling window, insiders at FULC bought $1.5M and sold $59.2M based on SEC Form 4 filings.
Can I get alerts for FULC insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Fulcrum Therapeutics, Inc. (FULC). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Fulcrum Therapeutics, Inc. is in the Healthcare sector.