Robert L Engler MD
CIK 1078452 · View on SEC EDGAR ↗
Insider
First SEC filing: April 27, 2004 · Latest: Feb. 8, 2005
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 10 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
10 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 14, 2014 | HALO | S | 35,000 | $9.96 | $348,600 | 273,176 Direct | -11.36% | Disposed | 967.3% (price as of 2026-08-20) |
| May 15, 2014 | HALO | S | 126,700 | $7.56 | $957,852 | 233,176 Direct | -35.21% | Disposed | 1306.1% (price as of 2026-08-20) |
| Dec. 16, 2008 | HALO | P | 10,000 | $4.38 | $43,800 | 65,000 Direct | +18.18% | Acquired | 2326.9% (price as of 2026-08-20) |
| March 15, 2007 | HALO | S | 6,000 | $8.00 | $48,000 | 25,000 Direct | -19.35% | Disposed | 1228.8% (price as of 2026-08-20) |
| March 15, 2007 | HALO | S | 2,000 | $8.02 | $16,040 | 31,000 Direct | -6.06% | Disposed | 1225.4% (price as of 2026-08-20) |
| March 15, 2007 | HALO | S | 3,000 | $8.03 | $24,090 | 33,000 Direct | -8.33% | Disposed | 1223.8% (price as of 2026-08-20) |
| March 15, 2007 | HALO | S | 3,900 | $8.05 | $31,395 | 36,000 Direct | -9.77% | Disposed | 1220.5% (price as of 2026-08-20) |
| March 15, 2007 | HALO | S | 100 | $8.06 | $806 | 39,900 Direct | -0.25% | Disposed | 1218.9% (price as of 2026-08-20) |
| March 15, 2007 | HALO | S | 10,000 | $8.10 | $81,000 | 40,000 Direct | -20.00% | Disposed | 1212.3% (price as of 2026-08-20) |
| May 24, 2005 | HALO | P | 7,000 | $1.99 | $13,930 | 35,000 Direct | +25.00% | Acquired | 5241.7% (price as of 2026-08-20) |
| May 24, 2005 | HALO | P | 2,600 | $1.98 | $5,148 | 28,000 Direct | +10.24% | Acquired | 5268.7% (price as of 2026-08-20) |
| May 24, 2005 | HALO | P | 1,400 | $1.97 | $2,758 | 25,400 Direct | +5.83% | Acquired | 5295.9% (price as of 2026-08-20) |
| May 24, 2005 | HALO | P | 12,000 | $1.93 | $23,160 | 24,000 Direct | +100.00% | Acquired | 5407.8% (price as of 2026-08-20) |
| May 24, 2005 | HALO | P | 2,000 | $1.93 | $3,860 | 12,000 Direct | +20.00% | Acquired | 5407.8% (price as of 2026-08-20) |
| Aug. 18, 2004 | HALO | P | 10,000 | $1.60 | $16,000 | 10,000 Direct | — | Acquired | 6543.8% (price as of 2026-08-20) |
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. 14, 2014 | HALO | Options to Purchase Common Stock | Common Stock (75,000) | $2.05 | Oct. 13, 2014 | 75,000 | Disposed |
| May 15, 2014 | HALO | Option to Purchase Common Stock (NSO) | Common Stock (150,000) | $4.10 | May 21, 2014 | 150,000 | Disposed |
| May 15, 2007 | HALO | Options to purchase common stock. | Common Stock (10,000) | $10.37 | May 15, 2017 | 10,000 | Acquired |
| May 4, 2006 | HALO | Option to Purchase Common Stock | Common Stock (10,000) | $2.80 | May 4, 2006 | 10,000 | Acquired |
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 |
|---|---|---|---|---|
| April 27, 2004 | HALO | Common Stock | 0 | Direct |