Lambda Investors LLC
CIK 1413621 · View on SEC EDGAR ↗
Insider
First SEC filing: Oct. 1, 2007 · Latest: Oct. 1, 2007
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 7 non-open-market transactions below
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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 29, 2015 | NEPH | X | 11,742,100 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-18) |
| Sept. 29, 2015 | NEPH | A | 11,742,100 | — | — | 11,742,100 Indirect | — | Acquired | (price as of 2026-08-18) |
| Sept. 29, 2015 | NEPH | D | 11,742,100 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-18) |
| Sept. 29, 2015 | NEPH | X | 11,742,100 | — | — | 27,017,848 Indirect | +76.87% | Acquired | (price as of 2026-08-18) |
| Nov. 14, 2007 | NEPH | C | 7,190,811 | — | — | 7,190,811 Direct | — | Acquired | (price as of 2026-08-18) |
| Nov. 14, 2007 | NEPH | C | None | — | — | 0 Direct | — | Disposed | (price as of 2026-08-18) |
| Nov. 14, 2007 | NEPH | C | 14,381,621 | $0.71 | $10,210,951 | 14,381,621 Direct | — | Acquired | -96.6% (price as of 2026-08-18) |
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 |
|---|---|---|---|---|---|---|---|
| Sept. 29, 2015 | NEPH | Class D Warrants | Common Stock (11,742,100) | $0.15 | Dec. 18, 2019 | 11,742,100 | Disposed |
| Sept. 29, 2015 | NEPH | Class D Warrants (Common Stock) | Common Stock (11,742,100) | $0.15 | Dec. 18, 2019 | 11,742,100 | Acquired |
| Sept. 29, 2015 | NEPH | Class D Warrants | Common Stock (11,742,100) | $0.30 | Dec. 18, 2019 | 11,742,100 | Disposed |
| Nov. 14, 2007 | NEPH | Class D Warrant for the Purchase of Shares of Common Stock | Common Stock (7,190,811) | $0.90 | Nov. 14, 2012 | 7,190,811 | Acquired |
| Nov. 14, 2007 | NEPH | Series A 10% Secured Convertible Note due 2008 | Common Stock and a Warrant to Purchase Common Stoc | $0.71 | — | — | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 1, 2007 | NEPH | Series A 10% Secured Convertible Note due 2008→ Common Stock and Warrants to Purchase Common Stock | — | Direct |