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Insider · CIK 0001688319

Richard E Buller

director

Files at CELC (Celcuity Inc.). First filing Oct 25, 2024, latest May 6, 2026.

Richard E Buller files SEC Form 4 as director at CELC (Celcuity Inc.). Since Oct 25, 2024, Richard E Buller has reported 0 open-market buys worth $0 and 6 open-market sells worth $2.4M, the latest filed on May 6, 2026.

A track record needs three past buys with six months of prices behind them; Richard E Buller has 0, so none is measured yet.

The newest scored trade: sold $1.3M of CELC on May 4, 2026, filed May 6, 2026, scored 33 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 5 sells worth $2.4M.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 6
$0 bought, $2.4M sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

CELC: Celcuity Inc.

CELCOct 9, 2026 · close 67.94

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
33Weak
CELCsell 210b5-1
Celcuity Inc.
$1.3M
9,000 shares
-57%+1333% from low0% from high
5Weak
CELCsell10b5-1
Celcuity Inc.
$331k
3,000 shares
-31%+1290% from low-3% from high
32Weak
CELCsell 2
Celcuity Inc.
$317k
3,000 shares
-31%+1187% from low-0% from high
23Weak
CELCsell 2
Celcuity Inc.
$108k
1,100 shares
-13%+1100% from low-3% from high
34Weak
CELCsell 2
Celcuity Inc.
$377k
3,900 shares
-35%+1045% from low-0% from high
0Weak
CELCsell10b5-1
Celcuity Inc.
$5,688
350 shares
-5%-

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
May 4, 2026 CELC
Celcuity Inc.
6,000
0.01% of outstanding
$843kMay 4, 2026$331k
Mar 31, 2026 CELC
Celcuity Inc.
6,000
0.01% of outstanding
$662kMar 31, 2026none
Dec 5, 2025 CELC
Celcuity Inc.
3,000
0.01% of outstanding
$317kDec 5, 2025$485k
Dec 1, 2025 CELC
Celcuity Inc.
1,100
0.00% of outstanding
$108kDec 1, 2025$377k
Nov 20, 2025 CELC
Celcuity Inc.
3,900
0.01% of outstanding
$377kNov 20, 2025none

Transactions

Every row this insider has filed, 36 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jun 10, 2026CELC
Celcuity Inc.
GGift
Stock Option (right to buy)derivative
-12,503$0.00$00Jun 12, 2026
Jun 10, 2026CELC
Celcuity Inc.
GGift
Stock Option (right to buy)derivativeindirect: By Trust
+12,503$0.00$012,503Jun 12, 2026
Jun 5, 2026CELC
Celcuity Inc.
AGrant or award
Common Stock
+1,530$0.00$01,530Jun 9, 2026
May 19, 2026CELC
Celcuity Inc.
GGift
Common Stock
-1,029$0.00$00May 20, 2026
May 19, 2026CELC
Celcuity Inc.
GGift
Common Stockindirect: By Trust
+1,029$0.00$07,789May 20, 2026
May 4, 2026CELC
Celcuity Inc.
MOption exercise
Common Stockindirect: By Trust10b5-1
+9,000$5.10$46k15,760May 6, 2026
May 4, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-1,289$137.00$177k14,471May 6, 2026
May 4, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-550$139.00$76k13,921May 6, 2026
May 4, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-1,670$139.58$233k12,251May 6, 2026
May 4, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-2,301$141.03$325k9,950May 6, 2026
May 4, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-2,825$142.04$401k7,125May 6, 2026
May 4, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-365$143.24$52k6,760May 6, 2026
May 4, 2026CELC
Celcuity Inc.
MOption exercise
Stock Option (right to buy)derivativeindirect: By Trust10b5-1
-9,000$0.00$0654May 6, 2026
Mar 31, 2026CELC
Celcuity Inc.
MOption exercise
Common Stockindirect: By Trust10b5-1
+3,000$5.10$15k9,760Apr 2, 2026
Mar 31, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-2,325$110.11$256k7,435Apr 2, 2026
Mar 31, 2026CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-675$110.83$75k6,760Apr 2, 2026
Mar 31, 2026CELC
Celcuity Inc.
MOption exercise
Stock Option (right to buy)derivativeindirect: By Trust10b5-1
-3,000$0.00$09,654Apr 2, 2026
Dec 5, 2025CELC
Celcuity Inc.
MOption exercise
Common Stockindirect: By Trust
+3,000$5.50$17k9,760Dec 9, 2025
Dec 5, 2025CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust
-1,490$105.34$157k8,270Dec 9, 2025
Dec 5, 2025CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust
-1,510$106.04$160k6,760Dec 9, 2025
Dec 5, 2025CELC
Celcuity Inc.
MOption exercise
Stock Option (right to buy)derivativeindirect: By Trust
-3,000$0.00$01,555Dec 9, 2025
Dec 1, 2025CELC
Celcuity Inc.
MOption exercise
Common Stockindirect: By Trust
+1,100$14.83$16k8,360Dec 3, 2025
Dec 1, 2025CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust
-1,100$98.13$108k7,260Dec 3, 2025
Dec 2, 2025CELC
Celcuity Inc.
GGift
Common Stockindirect: By Trust
-500$0.00$06,760Dec 3, 2025
Dec 1, 2025CELC
Celcuity Inc.
MOption exercise
Stock Option (right to buy)derivativeindirect: By Trust
-1,100$0.00$01,522Dec 3, 2025
Nov 19, 2025CELC
Celcuity Inc.
GGift
Common Stockindirect: By Trust
-500$0.00$07,260Nov 21, 2025
Nov 20, 2025CELC
Celcuity Inc.
MOption exercise
Common Stockindirect: By Trust
+3,900$14.83$58k11,160Nov 21, 2025
Nov 20, 2025CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust
-3,900$96.73$377k7,260Nov 21, 2025
Nov 20, 2025CELC
Celcuity Inc.
MOption exercise
Stock Option (right to buy)derivativeindirect: By Trust
-3,900$0.00$02,622Nov 21, 2025
May 27, 2025CELC
Celcuity Inc.
GGift
Common Stock
-1,079$0.00$01,029May 29, 2025
May 27, 2025CELC
Celcuity Inc.
GGift
Common Stockindirect: By Trust
+1,079$0.00$07,760May 29, 2025
May 28, 2025CELC
Celcuity Inc.
GGift
Stock Option (right to buy)derivative
-6,522$0.00$00May 29, 2025
May 28, 2025CELC
Celcuity Inc.
GGift
Stock Option (right to buy)derivativeindirect: By Trust
+6,522$0.00$06,522May 29, 2025
May 19, 2025CELC
Celcuity Inc.
AGrant or award
Common Stock
+1,029$0.00$02,108May 21, 2025
May 19, 2025CELC
Celcuity Inc.
AGrant or award
Stock Option (right to buy)derivative
+12,503$0.00$012,503May 21, 2025
Oct 23, 2024CELC
Celcuity Inc.
SOpen-market sale
Common Stockindirect: By Trust10b5-1
-350$16.25$5,6886,681Oct 25, 2024

Questions about Richard E Buller

Answered from the filings on this page, as of the latest one.

Is Richard E Buller buying or selling?

In the last 12 months Richard E Buller reported 0 open-market buys worth $0 and 5 open-market sells worth $2.4M on SEC Form 4; the latest was sold $1.3M of CELC on May 4, 2026. Grants, option exercises and tax withholding are not counted.

How did Richard E Buller's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Richard E Buller has 0.

Where does Richard E Buller file Form 4?

Richard E Buller has filed Form 4 at CELC (Celcuity Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Richard E Buller: insider trades and track record | InsiderTell