Hayden Michael R

Director · ABCL, IONS, ETNB

As of 2026-09-27, Hayden Michael R has 35 Form 4 transactions on record across 3 companies — 23 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $13.4MIndirect: $18.5M$31.9Mas of 2026-09-27
  • Direct $13.4M
  • Indirect $18.5M
ABCLindirect1,373,397 sh$17.4M
ABCLdirect1,011,544 sh$12.8M
IONSindirect24,000 sh$1.1M
IONSdirect12,198 sh$543K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

ETNB · 16 trades
2025-10-30: Disposition, 22,730 sh ($0)2025-10-30: Disposition, 27,647 sh ($0)2025-10-30: Disposition, 2,933 sh ($0)2025-10-30: Disposition, 7,000 sh ($0)2025-10-30: Disposition, 12,500 sh ($0)2025-10-30: Disposition, 25,000 sh ($0)2025-10-30: Disposition, 27,400 sh ($0)2025-10-30: Disposition, 45,150 sh ($0)2025-10-30: Disposition, 56,400 sh ($0)2025-10-30: Code U, 61,538 sh2025-10-30: Code U, 80,904 sh2025-10-30: Code U, 61,538 sh2025-10-30: Code U, 103,978 sh2025-10-30: Code U, 80,904 sh2025-10-30: Code U, 103,978 sh2025-02-03: Award / grant, 56,400 sh ($0)
IONS · 13 trades
2026-07-31: Purchase, 5,000 sh ($258K)2026-07-30: Purchase, 15,000 sh ($801K)2026-07-01: Award / grant, 5,369 sh ($0)2026-07-01: Award / grant, 2,301 sh ($0)2025-07-15: Option exercise, 4,079 sh ($0)2025-07-15: Option exercise, 4,079 sh ($0)2025-07-01: Award / grant, 5,220 sh ($0)2025-07-01: Award / grant, 11,518 sh ($0)2025-05-01: Purchase, 15,000 sh ($478K)2024-12-23: Purchase, 2,500 sh ($91K)2024-12-23: Purchase, 2,500 sh ($90K)2024-07-01: Award / grant, 10,111 sh ($0)2024-07-01: Award / grant, 4,079 sh ($0)
ABCL · 6 trades
2026-08-24: Purchase, 53,613 sh ($570K)2026-08-12: Purchase, 46,387 sh ($481K)2026-08-11: Gift, 50,000 sh ($0)2026-06-11: Award / grant, 111,701 sh ($0)2025-06-12: Award / grant, 238,864 sh ($0)2024-06-21: Award / grant, 163,934 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-24ABCLPurchase53,613 @ $10.64$570K+4.1% of holding1,373,397Form 4
2026-08-12ABCLPurchase46,387 @ $10.37$481K+3.6% of holding1,319,784Form 4
2026-07-31IONSPurchase5,000 @ $51.60$258K+26.3% of holding24,000Form 4
2026-07-30IONSPurchase15,000 @ $53.38$801K+375.0% of holding19,000Form 4
2025-05-01IONSPurchase15,000 @ $31.86$478K+42.6% of holding50,219Form 4
2024-12-23IONSPurchase2,500 @ $36.23$91K+7.6% of holding35,219Form 4
2024-12-23IONSPurchase2,500 @ $36.20$90K+8.3% of holding32,719Form 4
28 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-11ABCLGift50,0001,273,397Form 4
2026-07-01IONSAward / grant5,3695,369Form 4
2026-07-01IONSAward / grant2,30112,198Form 4
2026-06-11ABCLAward / grant111,7011,011,544Form 4
2025-10-30ETNBDisposition22,7300Form 4
2025-10-30ETNBDisposition27,6470Form 4
2025-10-30ETNBDisposition2,9330Form 4
2025-10-30ETNBDisposition7,0000Form 4
2025-10-30ETNBDisposition12,5000Form 4
2025-10-30ETNBDisposition25,0000Form 4
2025-10-30ETNBDisposition27,4000Form 4
2025-10-30ETNBDisposition45,1500Form 4
2025-10-30ETNBDisposition56,4000Form 4
2025-10-30ETNBCode U61,5380Form 4
2025-10-30ETNBCode U80,9040Form 4
2025-10-30ETNBCode U61,5380Form 4
2025-10-30ETNBCode U103,9780Form 4
2025-10-30ETNBCode U80,9040Form 4
2025-10-30ETNBCode U103,9780Form 4
2025-07-15IONSOption exercise4,07954,298Form 4
2025-07-15IONSOption exercise4,0799,897Form 4
2025-07-01IONSAward / grant5,22013,976Form 4
2025-07-01IONSAward / grant11,51811,518Form 4
2025-06-12ABCLAward / grant238,864899,843Form 4
2025-02-03ETNBAward / grant56,40056,400Form 4
2024-07-01IONSAward / grant10,11110,111Form 4
2024-07-01IONSAward / grant4,0798,756Form 4
2024-06-21ABCLAward / grant163,934660,979Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.