Morningside Venture Investments Ltd
CIK 1543112 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 25, 2022 · Latest: Jan. 11, 2023
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Insider at
Insider transactions
1 buys (P)
0 sells (S)
Net:
$5,000,000
+ 14 non-open-market transactions below
Avg return of open purchases vs now:
77.6%
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
14 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 3, 2026 | APMD | P | 312,500 | $16.00 | $5,000,000 | 7,152,713 Direct | +4.57% | Acquired | 77.6% (price as of 2026-08-21) |
| March 29, 2023 | AMLX | S | 29,048 | $30.45 | $884,512 | 6,997,302 Direct | -0.41% | Disposed | 33.4% (price as of 2026-08-21) |
| March 28, 2023 | AMLX | S | 100,000 | $30.37 | $3,037,000 | 7,026,350 Direct | -1.40% | Disposed | 33.8% (price as of 2026-08-21) |
| March 27, 2023 | AMLX | S | 28,000 | $30.80 | $862,400 | 7,126,350 Direct | -0.39% | Disposed | 31.9% (price as of 2026-08-21) |
| March 27, 2023 | AMLX | S | 32,964 | $30.25 | $997,161 | 7,154,350 Direct | -0.46% | Disposed | 34.3% (price as of 2026-08-21) |
| March 21, 2023 | AMLX | S | 28,807 | $32.17 | $926,721 | 7,187,314 Direct | -0.40% | Disposed | 26.3% (price as of 2026-08-21) |
| March 21, 2023 | AMLX | S | 34,641 | $31.69 | $1,097,773 | 7,216,121 Direct | -0.48% | Disposed | 28.2% (price as of 2026-08-21) |
| March 16, 2023 | AMLX | S | 9,122 | $32.55 | $296,921 | 7,250,762 Direct | -0.13% | Disposed | 24.8% (price as of 2026-08-21) |
| March 15, 2023 | AMLX | S | 41,066 | $33.68 | $1,383,103 | 7,259,884 Direct | -0.56% | Disposed | 20.6% (price as of 2026-08-21) |
| March 15, 2023 | AMLX | S | 108,934 | $33.12 | $3,607,894 | 7,300,950 Direct | -1.47% | Disposed | 22.7% (price as of 2026-08-21) |
| March 14, 2023 | AMLX | S | 70,714 | $34.54 | $2,442,462 | 7,409,884 Direct | -0.95% | Disposed | 17.6% (price as of 2026-08-21) |
| March 2, 2023 | AMLX | S | 50,000 | $33.75 | $1,687,500 | 7,480,598 Direct | -0.66% | Disposed | 20.4% (price as of 2026-08-21) |
| Feb. 23, 2023 | AMLX | S | 1,111 | $36.24 | $40,263 | 7,580,598 Direct | -0.01% | Disposed | 12.1% (price as of 2026-08-21) |
| Feb. 23, 2023 | AMLX | S | 48,889 | $35.55 | $1,738,004 | 7,581,709 Direct | -0.64% | Disposed | 14.3% (price as of 2026-08-21) |
| Feb. 22, 2023 | AMLX | S | 2,112 | $35.34 | $74,638 | 7,530,598 Direct | -0.03% | Disposed | 15.0% (price as of 2026-08-21) |
| Feb. 22, 2023 | AMLX | S | 47,888 | $34.70 | $1,661,714 | 7,532,710 Direct | -0.63% | Disposed | 17.1% (price as of 2026-08-21) |
| Feb. 22, 2023 | AMLX | S | 10,084 | $36.34 | $366,453 | 7,630,598 Direct | -0.13% | Disposed | 11.8% (price as of 2026-08-21) |
| Feb. 22, 2023 | AMLX | S | 39,916 | $35.91 | $1,433,384 | 7,640,682 Direct | -0.52% | Disposed | 13.1% (price as of 2026-08-21) |
| Jan. 11, 2022 | AMLX | P | 263,158 | $19.00 | $5,000,002 | 10,678,808 Direct | +2.53% | Acquired | 113.8% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Aug. 3, 2026 | APMD | Convertible Preferred Stock | Class A Common Stock (6,840,213) | — | — | 9,227,454 | Disposed |
| Aug. 3, 2026 | APMD | Convertible Promissory Note | Class A Common Stock (75,624) | — | — | 1,088,986 | Disposed |
| Jan. 11, 2022 | AMLX | Series C-2 Preferred Stock | Common Stock (1,621,544) | — | — | 1,621,544 | Disposed |
| Jan. 11, 2022 | AMLX | Series C-1 Preferred Stock | Common Stock (974,107) | — | — | 974,107 | Disposed |
| Jan. 11, 2022 | AMLX | Series B Preferred Stock | Common Stock (6,410,964) | — | — | 6,410,964 | Disposed |
| Jan. 11, 2022 | AMLX | Series A Preferred Stock | Common Stock (1,409,035) | — | — | 1,409,035 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 30, 2026 | APMD | Convertible Preferred Stock→ Common Stock (6,840,213) | 6,840,213 | Direct |
| July 30, 2026 | APMD | Convertible Promissory Note→ Common Stock (75,624) | 75,624 | Indirect |
| Jan. 25, 2022 | AMLX | Series A Preferred Stock→ Common Stock (1,409,035) | 1,409,035 | Direct |
| Jan. 25, 2022 | AMLX | Series B Preferred Stock→ Common Stock (6,410,964) | 6,410,964 | Direct |
| Jan. 25, 2022 | AMLX | Series C-1 Preferred Stock→ Common Stock (974,107) | 974,107 | Direct |
| Jan. 25, 2022 | AMLX | Series C-2 Preferred Stock→ Common Stock (1,621,544) | 1,621,544 | Direct |