Christopher Horan
CIK: 0001736819
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Artiva Biotherapeutics, Inc.
Discretionary Trading P&L
Holdings
Transaction History (16 total)
- Nov 2, 2026ARTV
Artiva Biotherapeutics, Inc.
Sale(S)Direct10.4K shares at avg. $4.18$44K - Oct 5, 2026ARTV
Artiva Biotherapeutics, Inc.
Sale(S)Direct10.3K shares at avg. $6.84$71K - Sep 9, 2026ARTV
Artiva Biotherapeutics, Inc.
Award(A)Direct40K shares- - Sep 3, 2026ARTV
Artiva Biotherapeutics, Inc.
Sale(S)Direct10.4K shares at avg. $11.16$116K - May 19, 2026ARTV
Artiva Biotherapeutics, Inc.
Sale(S)Direct7K shares at avg. $9.01$63K - Feb 15, 2026ARTV
Artiva Biotherapeutics, Inc.
Award(A)Direct117.3K shares- - Feb 15, 2026ARTV
Artiva Biotherapeutics, Inc.
Tax Payment(F)Direct2.2K shares at avg. $4.00$9K - Dec 12, 2025ARTV
Artiva Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
20.5K shares- - Dec 12, 2025ARTV
Artiva Biotherapeutics, Inc.
Award(A)Direct107.2K shares- - Dec 12, 2025ARTV
Artiva Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
77.5K shares- - Dec 12, 2025ARTV
Artiva Biotherapeutics, Inc.
Disposition(D)DirectEmployee Stock Option (Right to Buy)
9.1K shares- - Nov 15, 2025ARTV
Artiva Biotherapeutics, Inc.
Tax Payment(F)Direct1.9K shares at avg. $3.25$6K - Aug 15, 2025ARTV
Artiva Biotherapeutics, Inc.
Tax Payment(F)Direct3.6K shares at avg. $2.75$10K - May 15, 2025ARTV
Artiva Biotherapeutics, Inc.
Tax Payment(F)Direct1.3K shares at avg. $2.13$3K - Feb 26, 2025ARTV
Artiva Biotherapeutics, Inc.
Award(A)Direct60K shares- - Sep 12, 2024ARTV
Artiva Biotherapeutics, Inc.
Award(A)Direct25K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Nov 2, 2026 | ARTV Artiva Biotherapeutics, Inc. | Sale(S) | 10,423 | $4.18 | $43,580 | Direct |
| Oct 5, 2026 | ARTV Artiva Biotherapeutics, Inc. | Sale(S) | 10,340 | $6.84 | $70,697 | Direct |
| Sep 9, 2026 | ARTV Artiva Biotherapeutics, Inc. | Award(A) | 40,000 | - | $0 | Direct |
| Sep 3, 2026 | ARTV Artiva Biotherapeutics, Inc. | Sale(S) | 10,366 | $11.16 | $115,638 | Direct |
| May 19, 2026 | ARTV Artiva Biotherapeutics, Inc. | Sale(S) | 7,002 | $9.01 | $63,073 | Direct |
| Feb 15, 2026 | ARTV Artiva Biotherapeutics, Inc. | Award(A) | 117,300 | - | $0 | Direct |
| Feb 15, 2026 | ARTV Artiva Biotherapeutics, Inc. | Tax Payment(F) | 2,187 | $4.00 | $8,748 | Direct |
| Dec 12, 2025 | ARTV Artiva Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 20,519 | - | - | Direct |
| Dec 12, 2025 | ARTV Artiva Biotherapeutics, Inc. | Award(A) | 107,156 | - | - | Direct |
| Dec 12, 2025 | ARTV Artiva Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 77,519 | - | - | Direct |
| Dec 12, 2025 | ARTV Artiva Biotherapeutics, Inc. | Disposition(D) Employee Stock Option (Right to Buy) | 9,119 | - | - | Direct |
| Nov 15, 2025 | ARTV Artiva Biotherapeutics, Inc. | Tax Payment(F) | 1,899 | $3.25 | $6,172 | Direct |
| Aug 15, 2025 | ARTV Artiva Biotherapeutics, Inc. | Tax Payment(F) | 3,577 | $2.75 | $9,837 | Direct |
| May 15, 2025 | ARTV Artiva Biotherapeutics, Inc. | Tax Payment(F) | 1,341 | $2.13 | $2,856 | Direct |
| Feb 26, 2025 | ARTV Artiva Biotherapeutics, Inc. | Award(A) | 60,000 | - | - | Direct |
| Sep 12, 2024 | ARTV Artiva Biotherapeutics, Inc. | Award(A) | 25,000 | - | $0 | Direct |
1-16 of 16 transactions
About Horan Christopher
Horan Christopher (SEC CIK 0001736819) files insider reports with the SEC as Chief Tech Operations Officer of Artiva Biotherapeutics, Inc. (ARTV).
Signal8 holds 11 ownership filings by Horan Christopher, all Form 4s, filed between Sep 13, 2024 and Nov 3, 2026. Those filings report 16 transactions, from Sep 12, 2024 to Nov 2, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Horan Christopher's filings is in SAN DIEGO, CA.
Recent filings by Horan Christopher
- Nov 2, 2026: Open-market sale of ARTV shares (Form 4, code S).
- Oct 5, 2026: Open-market sale of ARTV shares (Form 4, code S).
- Sep 9, 2026: Grant or award of ARTV shares (Form 4, code A).
- Sep 3, 2026: Open-market sale of ARTV shares (Form 4, code S).
- May 19, 2026: Open-market sale of ARTV shares (Form 4, code S).
Other insiders filing for Artiva Biotherapeutics, Inc. (ARTV)
- Bush Jennifer, COO, CLO, Compliance Officer
- Banerjee Subhashis, Chief Medical Officer
- Aslan Fred, Chief Executive Officer
- RA CAPITAL MANAGEMENT, L.P., Director
- Stoppel Laura, Director
- Sorg Elaine K., Director