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Joanne L. Viney

CIK 1816744 · See Remarks · last filed 2026-06-18

Joanne L. Viney is a corporate insider who has filed 15 SEC Form 4 insider transactions across 5 companies since 2020. The most recent filing, for SION, was dated Jun 18, 2026. Across all open-market trades the lifetime net is +$21.6K, making them a net buyer over the disclosed history.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$0

Companies

5

Total Filings

15

Lifetime Open-Market Net

$21.6K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
SION Director — $6.46 — $0 3 2026-06-18
LENZ Therapeutics, Inc. (GRPH) Delisted Director — $22.26 — $0 2 2023-07-21
Harpoon Therapeutics, Inc. (HARP) Delisted Director 2,103 $23.01 $48.4K $0 5 2023-04-04
Finch Therapeutics Group, Inc. (FNCH) Delisted Director — $7.30 — $0 2 2022-06-15
Pandion Therapeutics, Inc. (PAND) Delisted See Remarks 0 $60.05 $0 $21.6K 3 2021-04-01

Recent Filings

15 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-06-18 SION Grant (A) — $0 EDGAR
2025-06-16 SION Grant (A) — $0 EDGAR
2025-02-10 SION Grant (A) — $0 EDGAR
2023-07-21 LENZ Therapeutics, Inc. (GRPH) Delisted Grant (A) — $0 EDGAR
2023-04-04 Harpoon Therapeutics, Inc. (HARP) Delisted Grant (A) +21,028 $0 EDGAR
2022-06-24 Harpoon Therapeutics, Inc. (HARP) Delisted Grant (A) — $0 EDGAR
2022-06-22 LENZ Therapeutics, Inc. (GRPH) Delisted Grant (A) — $0 EDGAR
2022-06-15 Finch Therapeutics Group, Inc. (FNCH) Delisted Grant (A) — $0 EDGAR
2021-05-14 Harpoon Therapeutics, Inc. (HARP) Delisted Grant (A) — $0 EDGAR
2021-05-14 Finch Therapeutics Group, Inc. (FNCH) Delisted Grant (A) — $0 EDGAR
Showing 1–10 of 15
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.