Morningside Venture Investments Ltd

CIK 1543112 · last filed 2023-08-17

Morningside Venture Investments Ltd is a corporate insider who has filed 34 SEC Form 4 insider transactions across 4 companies since 2017. The most recent filing, for KZR, was dated Aug 17, 2023. Across all open-market trades the lifetime net is +$54.0M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $88.7M across reported positions.

"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

$88.70M

Companies

4

Total Filings

34

Lifetime Open-Market Net

$53.96M

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
Kezar Life Sciences, Inc. (KZR) Delisted 10%+ Owner 194,799 $7.29 $1.42M $9.80M 13 2023-08-17
AMLX 10%+ Owner 4,997,302 $17.75 $88.70M -$17.54M 10 2023-08-17
GreenLight Biosciences Holdings, PBC (GRNAW) Delisted 10%+ Owner 1,000,000 $0.02 $22.0K $12.00M 4 2023-07-25
Apellis Pharmaceuticals, Inc. (APLS) Delisted 10%+ Owner 12,806,342 $41.03 $525.44M $49.70M 6 2021-11-18

Recent Filings

34 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
2023-08-17 Kezar Life Sciences, Inc. (KZR) Delisted Gift (G) −3,500,000 $0 EDGAR
2023-08-17 AMLX Gift (G) −2,000,000 $0 EDGAR
2023-07-25 GreenLight Biosciences Holdings, PBC (GRNAW) Delisted Other (J) −16,919,155 $0 EDGAR
2023-03-31 AMLX Sell (S) −29,048 -$884.5K EDGAR
2023-03-29 AMLX Sell (S) −160,964 -$4.90M EDGAR
2023-03-23 AMLX Sell (S) −63,448 -$2.02M EDGAR
2023-03-17 AMLX Sell (S) −9,122 -$296.9K EDGAR
2023-03-16 AMLX Sell (S) −220,714 -$7.43M EDGAR
2023-03-06 AMLX Sell (S) −50,000 -$1.69M EDGAR
2023-02-28 AMLX Sell (S) −50,000 -$1.74M EDGAR
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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.