CHESS ROBERT

Director · TWST, NKTR

As of 2026-09-16, CHESS ROBERT has 16 Form 4 transactions on record across 2 companies — 9 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.

Pattern in the record: open-market sales filed in February in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $539KIndirect: $0$539Kas of 2026-09-16
  • Direct $539K
  • Indirect $0
NKTRdirect8,000 sh$539K

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

TWST · 15 trades
2026-08-07: Sale, 18,417 sh ($2.0M)2026-08-07: Option exercise, 18,417 sh ($219K)2026-08-07: Option exercise, 18,417 sh ($0)2026-03-17: Sale, 10,000 sh ($470K)2026-03-17: Option exercise, 10,000 sh ($119K)2026-03-17: Option exercise, 10,000 sh ($0)2026-02-13: Sale, 2,184 sh ($105K)2026-02-05: Award / grant, 5,095 sh ($0)2025-02-07: Sale, 2,940 sh ($156K)2025-02-05: Award / grant, 4,472 sh ($0)2025-01-07: Sale, 5,000 sh ($250K)2024-12-05: Sale, 2,795 sh ($145K)2024-12-05: Sale, 709 sh ($37K)2024-12-05: Option exercise, 3,504 sh ($31K)2024-12-05: Option exercise, 3,504 sh ($0)
NKTR · 1 trade
2025-09-30: Award / grant, 8,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-07TWSTSale18,417 @ $110.89$2.0M−46.6% of holding21,084Form 4
2026-03-17TWSTSale10,000 @ $47.00$470K−32.2% of holding21,084Form 4
2026-02-13TWSTSale2,184 @ $48.26$105K−9.4% of holding21,084Form 4
2025-02-07TWSTSale2,940 @ $53.13$156K−13.9% of holding18,173Form 4
2025-01-07TWSTSale5,000 @ $50.00$250K−23.1% of holding16,641Form 4
2024-12-05TWSTSale2,795 @ $51.70$145K−11.1% of holding22,350Form 4
2024-12-05TWSTSale709 @ $52.45$37K−3.2% of holding21,641Form 4
9 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-07TWSTOption exercise18,41739,501Form 4
2026-08-07TWSTOption exercise18,4170Form 4
2026-03-17TWSTOption exercise10,00031,084Form 4
2026-03-17TWSTOption exercise10,00018,417Form 4
2026-02-05TWSTAward / grant5,09523,268Form 4
2025-09-30NKTRAward / grant8,0008,000Form 4
2025-02-05TWSTAward / grant4,47221,113Form 4
2024-12-05TWSTOption exercise3,50425,145Form 4
2024-12-05TWSTOption exercise3,5040Form 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.