| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
1 company
Richard E Buller is Director at CELC. Richard E Buller's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $107K at current prices.
Historically, Richard E Buller's trades have earned a middling insider score of 53/100 across 32 rated trades. Over a 12-month horizon, 37.0% of those trades were profitable, with an average 12-month return of -27.1%.
The CELC filings lean toward selling, a net 27,875 shares.
Richard E Buller has 42 Form 4 filings on record from December 2019 to June 2026, all as Director at Celcuity (CELC), 2019–2026.
The 82 reported transactions were 39 open-market sales, 20 gifts, 9 option or other derivative awards and 7 stock awards, plus smaller numbers of other types.
Counted by filing, the open-market trades come to no purchases and 29 sales worth about $2.5M.
The largest open-market sale was 9,000 shares of CELC at an average $140.46 on May 4, 2026, about $1.3M.
12 of the 18 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other 6 were not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| May 4, 2026 | CELC Celcuity Inc. | Director | Sale+OE10b5-1 | 9,000 | $140.46 | $1,264,180.76 | -57.1% | -39.5% | - | |
| Mar 31, 2026 | CELC Celcuity Inc. | Director | Sale+OE10b5-1 | 3,000 | $110.27 | $330,803.84 | -30.7% | -10.2% | - | |
| Dec 5, 2025 | CELC Celcuity Inc. | Director | Sale+OE | 3,000 | $105.69 | $317,069.61 | -30.7% | +9.1% | - | |
| Dec 1, 2025 | CELC Celcuity Inc. | Director | Sale+OE | 1,100 | $98.13 | $107,948.39 | -13.2% | +10.0% | - | |
| Nov 20, 2025 | CELC Celcuity Inc. | Director | Sale+OE | 3,900 | $96.73 | $377,254.80 | -34.9% | +12.5% | - | |
| Oct 23, 2024 | CELC Celcuity Inc. | Director | Sell10b5-1 | 350 | $16.25 | $5,687.50 | -5.0% | -29.1% | +346.1% | |
| Aug 23, 2024 | CELC Celcuity Inc. | Director | Sell10b5-1 | 350 | $16.95 | $5,932.50 | -4.7% | -26.6% | +202.1% | |
| Jun 21, 2024 | CELC Celcuity Inc. | Director | Sell10b5-1 | 350 | $15.68 | $5,488.00 | -4.5% | -4.6% | -27.2% | |
| Apr 24, 2024 | CELC Celcuity Inc. | Director | Sell10b5-1 | 350 | $17.06 | $5,971.00 | -4.3% | +8.7% | -34.8% | |
| Feb 21, 2024 | CELC Celcuity Inc. | Director | Sell10b5-1 | 350 | $14.15 | $4,952.50 | -4.2% | +15.1% | -8.5% |