Hayden Michael R — SEC Form 4 filings
SEC reporting owner CIK 1352908. 16 Form 4 filings on record with FilingPulse; latest filed 2026-08-24.
Transaction summary — filings shown
Covers all 16 filings on record, filed 2024-02-05 to 2026-08-24. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 7 legs across 5 filings — 140,000 shares, $2,769,154 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 27.
- Largest priced transaction: purchase of 15,000 shares @ $53.38 ($800,700) in IONIS PHARMACEUTICALS INC, filed 2026-07-31.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| IONIS PHARMACEUTICALS INC (IONS) | Director | 7 | 5 legs · 40,000 sh · $1,717,679 | — | 8 |
| AbCellera Biologics Inc. (ABCL) | Director | 6 | 2 legs · 100,000 sh · $1,051,476 | — | 4 |
| 89bio, Inc. (ETNB) | Director | 3 | — | — | 15 |
Form 4 filings — Hayden Michael R
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-24 | 4 | AbCellera Biologics Inc. (ABCL) | Purchase (P): 53,613 @ $10.64 | EDGAR |
| 2026-08-14 | 4 | AbCellera Biologics Inc. (ABCL) | Purchase (P): 46,387 @ $10.37 | EDGAR |
| 2026-08-13 | 4 | AbCellera Biologics Inc. (ABCL) | Gift (G): 50,000 @ $0 | EDGAR |
| 2026-07-31 | 4 | IONIS PHARMACEUTICALS INC (IONS) | Purchase (P): 15,000 @ $53.38 · Purchase (P): 5,000 @ $51.60 | EDGAR |
| 2026-07-06 | 4 | IONIS PHARMACEUTICALS INC (IONS) | Grant/award (A): 5,369 (derivative) @ $0 · Grant/award (A): 2,301 (derivative) @ $0 | EDGAR |
| 2026-06-12 | 4 | AbCellera Biologics Inc. (ABCL) | Grant/award (A): 111,701 (derivative) @ $0 | EDGAR |
| 2025-10-30 | 4 | 89bio, Inc. (ETNB) | Code (U): 80,904 · Code (U): 103,978 · Code (U): 61,538 · Disposition to issuer (D): 27,647 (derivative) @ $0 · Disposition to issuer (D): 2,933 (derivative) @ $0 · Disposition to issuer (D): 22,730 (derivative) @ $0 · +7 more | EDGAR |
| 2025-07-17 | 4 | IONIS PHARMACEUTICALS INC (IONS) | Option exercise (M): 4,079 @ $0 · Option exercise (M): 4,079 (derivative) @ $0 | EDGAR |
| 2025-07-02 | 4 | IONIS PHARMACEUTICALS INC (IONS) | Grant/award (A): 11,518 (derivative) @ $0 · Grant/award (A): 5,220 (derivative) @ $0 | EDGAR |
| 2025-07-01 | 4 | AbCellera Biologics Inc. (ABCL) | Grant/award (A): 238,864 (derivative) @ $0 | EDGAR |
| 2025-05-02 | 4 | IONIS PHARMACEUTICALS INC (IONS) | Purchase (P): 15,000 @ $31.86 | EDGAR |
| 2025-02-05 | 4 | 89bio, Inc. (ETNB) | Grant/award (A): 56,400 (derivative) @ $0 | EDGAR |
| 2024-12-26 | 4 | IONIS PHARMACEUTICALS INC (IONS) | Purchase (P): 2,500 @ $36.20 · Purchase (P): 2,500 @ $36.23 | EDGAR |
| 2024-07-03 | 4 | IONIS PHARMACEUTICALS INC (IONS) | Grant/award (A): 10,111 (derivative) @ $0 · Grant/award (A): 4,079 (derivative) @ $0 | EDGAR |
| 2024-06-24 | 4 | AbCellera Biologics Inc. (ABCL) | Grant/award (A): 163,934 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | 89bio, Inc. (ETNB) | Grant/award (A): 45,150 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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