Richardson Nathan

Director · GRND

As of 2026-09-16, Richardson Nathan has 21 Form 4 transactions on record across 1 company — 10 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 June in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $106KIndirect: $0$106Kas of 2026-09-16
  • Direct $106K
  • Indirect $0
GRNDdirect6,833 sh$106K

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

GRND · 21 trades
2026-06-01: Sale, 1,500 sh ($19K)2026-05-01: Sale, 1,500 sh ($20K)2026-04-01: Sale, 1,500 sh ($18K)2026-03-02: Sale, 1,500 sh ($17K)2026-02-02: Sale, 1,500 sh ($17K)2026-01-02: Sale, 1,500 sh ($20K)2025-12-01: Sale, 1,500 sh ($19K)2025-11-18: Sale, 1,500 sh ($20K)2025-11-14: Sale, 485 sh ($7K)2025-10-14: Sale, 1,000 sh ($14K)2025-09-15: Sale, 1,000 sh ($16K)2025-08-14: Sale, 1,000 sh ($16K)2025-07-14: Sale, 1,000 sh ($21K)2025-06-16: Sale, 1,000 sh ($23K)2025-06-03: Award / grant, 484 sh ($0)2025-05-14: Sale, 1,000 sh ($24K)2025-04-14: Sale, 1,000 sh ($18K)2025-03-14: Sale, 1,000 sh ($16K)2025-02-14: Sale, 1,000 sh ($19K)2024-12-16: Sale, 1,000 sh ($16K)2024-07-30: Award / grant, 8,192 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-01GRNDSale1,500 @ $12.59$19K−18.0% of holding6,833Form 4
2026-05-01GRNDSale1,500 @ $13.51$20K−15.3% of holding8,333Form 4
2026-04-01GRNDSale1,500 @ $12.17$18K−13.2% of holding9,833Form 4
2026-03-02GRNDSale1,500 @ $11.27$17K−11.7% of holding11,333Form 4
2026-02-02GRNDSale1,500 @ $11.18$17K−10.5% of holding12,833Form 4
2026-01-02GRNDSale1,500 @ $13.66$20K−9.5% of holding14,333Form 4
2025-12-01GRNDSale1,500 @ $12.70$19K−8.7% of holding15,833Form 4
2025-11-18GRNDSale1,500 @ $13.55$20K−8.0% of holding17,333Form 4
2025-11-14GRNDSale485 @ $14.03$7K−2.5% of holding18,833Form 4
2025-10-14GRNDSale1,000 @ $13.50$14K−4.9% of holding19,318Form 4
2025-09-15GRNDSale1,000 @ $16.19$16K−4.7% of holding20,318Form 4
2025-08-14GRNDSale1,000 @ $16.27$16K−4.5% of holding21,318Form 4
2025-07-14GRNDSale1,000 @ $21.26$21K−6.6% of holding14,126Form 4
2025-06-16GRNDSale1,000 @ $23.45$23K−6.2% of holding15,126Form 4
2025-05-14GRNDSale1,000 @ $24.01$24K−6.0% of holding15,642Form 4
2025-04-14GRNDSale1,000 @ $18.40$18K−5.7% of holding16,642Form 4
2025-03-14GRNDSale1,000 @ $16.34$16K−5.4% of holding17,642Form 4
2025-02-14GRNDSale1,000 @ $18.58$19K−5.1% of holding18,642Form 4
2024-12-16GRNDSale1,000 @ $16.00$16K−4.6% of holding20,642Form 4
2 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2025-06-03GRNDAward / grant48416,126Form 4
2024-07-30GRNDAward / grant8,19222,318Form 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.