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▼ SELL 10b5-1 Plan

$ Value

$75K

Shares

675

Price

$111

Filed

Apr 2

Insider

Name

Buller Richard E

Title

CIK

0001688319

Roles

Director

Transaction Details

Transaction Date

2026-03-31

Code

S

Table

Non-Derivative

Ownership

Indirect

Equity Swap

No

Shares After

6,760

Footnotes

The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 8, 2025. | The Reporting Person and his spouse are the trustees and beneficiaries. The Reporting Person continues to beneficially own these securities held by the trust. | The price reported in Column 4 is a weighted average price. These shares of common stock of the issuer were traded in multiple transactions at prices ranging from $109.505 to $110.48, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares traded at each separate price within the range set forth in this footnote. | The price reported in Column 4 is a weighted average price. These shares of common stock of the issuer were traded in multiple transactions at prices ranging from $110.50 to $111.36, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares traded at each separate price within the range set forth in this footnote. | 100% vested.

Filing Info

Accession No.

0001688319-26-000002

Form Type

4

Issuer CIK

0001603454

Buller Richard E's History

Date Ticker Type Value
2026-03-31 CELC M $15K
2026-03-31 CELC $256K
2026-03-31 CELC $75K
2026-03-31 CELC M $0
2025-05-28 CELC G $0
2025-05-28 CELC G $0
2025-05-27 CELC G $0
2025-05-27 CELC G $0
2025-05-19 CELC A $0
2025-05-19 CELC A $0

Other Insiders at CELC (90d)

Insider Bought Sold Last
NIGON RICHARD 2026-04-09
Buller Richard E $256K 2026-03-31