David R Walt
CIK 1205236 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 16, 2016 · Latest: Dec. 6, 2017
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 33 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
33 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 11, 2017 | QTRX | P | 200,000 | $15.00 | $3,000,000 | 1,215,500 Direct | +19.69% | Acquired | -79.6% (price as of 2026-08-20) |
| Sept. 26, 2017 | XCUR | P | 268,333 | $3.00 | $804,999 | 767,711 Direct | +53.73% | Acquired | -99.7% (price as of 2026-08-20) |
| April 7, 2016 | ILMN | S 10b5-1 | 100 | $172.30 | $17,230 | 631,840 Direct | -0.02% | Disposed | 25.8% (price as of 2026-08-20) |
| April 7, 2016 | ILMN | S 10b5-1 | 600 | $170.78 | $102,468 | 631,940 Direct | -0.09% | Disposed | 26.9% (price as of 2026-08-20) |
| April 7, 2016 | ILMN | S 10b5-1 | 1,100 | $169.58 | $186,538 | 632,540 Direct | -0.17% | Disposed | 27.8% (price as of 2026-08-20) |
| April 7, 2016 | ILMN | S 10b5-1 | 1,000 | $168.34 | $168,340 | 633,640 Direct | -0.16% | Disposed | 28.7% (price as of 2026-08-20) |
| April 7, 2016 | ILMN | S 10b5-1 | 1,200 | $167.52 | $201,024 | 634,640 Direct | -0.19% | Disposed | 29.4% (price as of 2026-08-20) |
| March 15, 2016 | ILMN | S 10b5-1 | 1,300 | $150.66 | $195,858 | 631,840 Direct | -0.21% | Disposed | 43.9% (price as of 2026-08-20) |
| March 15, 2016 | ILMN | S 10b5-1 | 1,900 | $150.06 | $285,114 | 633,140 Direct | -0.30% | Disposed | 44.4% (price as of 2026-08-20) |
| March 15, 2016 | ILMN | S 10b5-1 | 800 | $148.72 | $118,976 | 635,040 Direct | -0.13% | Disposed | 45.7% (price as of 2026-08-20) |
| Feb. 22, 2016 | DARE | P 10b5-1 | 591 | $2.09 | $1,235 | 167,491 Direct | +0.35% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 19, 2016 | DARE | P 10b5-1 | 1,700 | $2.08 | $3,536 | 166,900 Direct | +1.03% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 18, 2016 | DARE | P 10b5-1 | 4,500 | $2.09 | $9,405 | 165,200 Direct | +2.80% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 17, 2016 | DARE | P 10b5-1 | 4,460 | $2.12 | $9,455 | 160,700 Direct | +2.85% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 16, 2016 | DARE | P 10b5-1 | 4,500 | $2.00 | $9,000 | 156,240 Direct | +2.97% | Acquired | -99.6% (price as of 2026-08-20) |
| Feb. 12, 2016 | DARE | P 10b5-1 | 4,311 | $2.00 | $8,622 | 151,740 Direct | +2.92% | Acquired | -99.6% (price as of 2026-08-20) |
| Feb. 11, 2016 | DARE | P 10b5-1 | 4,350 | $2.03 | $8,830 | 147,429 Direct | +3.04% | Acquired | -99.6% (price as of 2026-08-20) |
| Feb. 10, 2016 | DARE | P 10b5-1 | 4,500 | $2.08 | $9,360 | 143,079 Direct | +3.25% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 9, 2016 | DARE | P 10b5-1 | 4,500 | $2.08 | $9,360 | 138,579 Direct | +3.36% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 8, 2016 | DARE | P 10b5-1 | 4,500 | $2.22 | $9,990 | 134,079 Direct | +3.47% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 5, 2016 | DARE | P 10b5-1 | 4,500 | $2.29 | $10,305 | 129,579 Direct | +3.60% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 4, 2016 | DARE | P 10b5-1 | 4,063 | $2.31 | $9,386 | 125,079 Direct | +3.36% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 3, 2016 | DARE | P 10b5-1 | 4,018 | $2.27 | $9,121 | 121,016 Direct | +3.43% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 2, 2016 | DARE | P 10b5-1 | 4,395 | $2.37 | $10,416 | 116,998 Direct | +3.90% | Acquired | -99.7% (price as of 2026-08-20) |
| Feb. 1, 2016 | DARE | P 10b5-1 | 4,500 | $2.37 | $10,665 | 112,603 Direct | +4.16% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 29, 2016 | DARE | P 10b5-1 | 1,200 | $2.40 | $2,880 | 108,103 Direct | +1.12% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 28, 2016 | DARE | P 10b5-1 | 4,500 | $2.45 | $11,025 | 106,903 Direct | +4.39% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 27, 2016 | DARE | P 10b5-1 | 4,500 | $2.47 | $11,115 | 102,403 Direct | +4.60% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 26, 2016 | DARE | P 10b5-1 | 4,300 | $2.44 | $10,492 | 97,903 Direct | +4.59% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 25, 2016 | DARE | P 10b5-1 | 4,500 | $2.35 | $10,575 | 93,603 Direct | +5.05% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 22, 2016 | DARE | P 10b5-1 | 4,500 | $2.24 | $10,080 | 89,103 Direct | +5.32% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 21, 2016 | DARE | P 10b5-1 | 4,500 | $2.32 | $10,440 | 84,603 Direct | +5.62% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 20, 2016 | DARE | P 10b5-1 | 4,500 | $2.35 | $10,575 | 80,103 Direct | +5.95% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 19, 2016 | DARE | P 10b5-1 | 4,400 | $2.52 | $11,088 | 75,603 Direct | +6.18% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 15, 2016 | DARE | P 10b5-1 | 4,172 | $2.42 | $10,096 | 71,203 Direct | +6.22% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 14, 2016 | DARE | P 10b5-1 | 4,400 | $2.64 | $11,616 | 67,031 Direct | +7.03% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 13, 2016 | DARE | P 10b5-1 | 4,384 | $2.69 | $11,793 | 62,631 Direct | +7.53% | Acquired | -99.7% (price as of 2026-08-20) |
| Jan. 12, 2016 | DARE | P 10b5-1 | 4,300 | $2.89 | $12,427 | 58,247 Direct | +7.97% | Acquired | -99.8% (price as of 2026-08-20) |
| Jan. 11, 2016 | DARE | P 10b5-1 | 4,355 | $2.86 | $12,455 | 53,947 Direct | +8.78% | Acquired | -99.8% (price as of 2026-08-20) |
| Jan. 8, 2016 | DARE | P 10b5-1 | 4,500 | $2.87 | $12,915 | 49,592 Direct | +9.98% | Acquired | -99.8% (price as of 2026-08-20) |
| Jan. 7, 2016 | DARE | P 10b5-1 | 4,300 | $2.87 | $12,341 | 45,092 Direct | +10.54% | Acquired | -99.8% (price as of 2026-08-20) |
| Jan. 6, 2016 | DARE | P 10b5-1 | 4,500 | $3.03 | $13,635 | 40,792 Direct | +12.40% | Acquired | -99.8% (price as of 2026-08-20) |
| Jan. 5, 2016 | DARE | P | 4,301 | $3.06 | $13,161 | 36,292 Direct | +13.44% | Acquired | -99.8% (price as of 2026-08-20) |
| Jan. 4, 2016 | DARE | P | 4,500 | $3.01 | $13,545 | 31,991 Direct | +16.37% | Acquired | -99.8% (price as of 2026-08-20) |
| Dec. 3, 2015 | DARE | P | 10,000 | $3.75 | $37,500 | 27,491 Direct | +57.17% | Acquired | -99.8% (price as of 2026-08-20) |
| Nov. 30, 2015 | DARE | P | 5,374 | $3.25 | $17,466 | 17,491 Direct | +44.35% | Acquired | -99.8% (price as of 2026-08-20) |
| Nov. 27, 2015 | DARE | P | 6,700 | $3.28 | $21,976 | 12,117 Direct | +123.68% | Acquired | -99.8% (price as of 2026-08-20) |
| Nov. 25, 2015 | DARE | P | 5,417 | $3.37 | $18,255 | 5,417 Direct | — | Acquired | -99.8% (price as of 2026-08-20) |
| Nov. 10, 2015 | ILMN | S 10b5-1 | 800 | $153.28 | $122,624 | 38,160 Indirect | -2.05% | Disposed | 41.4% (price as of 2026-08-20) |
| Nov. 10, 2015 | ILMN | S 10b5-1 | 200 | $155.11 | $31,022 | 36,960 Indirect | -0.54% | Disposed | 39.7% (price as of 2026-08-20) |
| Nov. 10, 2015 | ILMN | S 10b5-1 | 1,000 | $154.42 | $154,420 | 37,160 Indirect | -2.62% | Disposed | 40.3% (price as of 2026-08-20) |
| Sept. 29, 2015 | ILMN | S 10b5-1 | 200 | $173.34 | $34,668 | 38,960 Indirect | -0.51% | Disposed | 25.0% (price as of 2026-08-20) |
| Sept. 29, 2015 | ILMN | S 10b5-1 | 1,100 | $172.56 | $189,816 | 39,160 Indirect | -2.73% | Disposed | 25.6% (price as of 2026-08-20) |
| Sept. 29, 2015 | ILMN | S 10b5-1 | 200 | $171.18 | $34,236 | 40,260 Indirect | -0.49% | Disposed | 26.6% (price as of 2026-08-20) |
| Sept. 29, 2015 | ILMN | S 10b5-1 | 100 | $170.00 | $17,000 | 40,460 Indirect | -0.25% | Disposed | 27.5% (price as of 2026-08-20) |
| Sept. 29, 2015 | ILMN | S 10b5-1 | 400 | $168.94 | $67,576 | 40,560 Indirect | -0.98% | Disposed | 28.3% (price as of 2026-08-20) |
| Sept. 15, 2015 | ILMN | S 10b5-1 | 1,100 | $206.78 | $227,458 | 40,960 Indirect | -2.62% | Disposed | 4.8% (price as of 2026-08-20) |
| Sept. 15, 2015 | ILMN | S 10b5-1 | 900 | $206.04 | $185,436 | 42,060 Indirect | -2.09% | Disposed | 5.2% (price as of 2026-08-20) |
| Sept. 1, 2015 | ILMN | S 10b5-1 | 900 | $196.25 | $176,625 | 42,960 Indirect | -2.05% | Disposed | 10.4% (price as of 2026-08-20) |
| Sept. 1, 2015 | ILMN | S 10b5-1 | 500 | $194.91 | $97,455 | 43,860 Indirect | -1.13% | Disposed | 11.2% (price as of 2026-08-20) |
| Sept. 1, 2015 | ILMN | S 10b5-1 | 400 | $193.87 | $77,548 | 44,360 Indirect | -0.89% | Disposed | 11.8% (price as of 2026-08-20) |
| Sept. 1, 2015 | ILMN | S 10b5-1 | 200 | $192.62 | $38,524 | 44,760 Indirect | -0.44% | Disposed | 12.5% (price as of 2026-08-20) |
| Aug. 18, 2015 | ILMN | S 10b5-1 | 500 | $207.22 | $103,610 | 44,960 Indirect | -1.10% | Disposed | 4.6% (price as of 2026-08-20) |
| Aug. 18, 2015 | ILMN | S 10b5-1 | 1,500 | $206.78 | $310,170 | 45,460 Indirect | -3.19% | Disposed | 4.8% (price as of 2026-08-20) |
| Aug. 11, 2015 | ILMN | S 10b5-1 | 300 | $211.48 | $63,444 | 648,840 Direct | -0.05% | Disposed | 2.5% (price as of 2026-08-20) |
| Aug. 11, 2015 | ILMN | S 10b5-1 | 900 | $210.43 | $189,387 | 649,140 Direct | -0.14% | Disposed | 3.0% (price as of 2026-08-20) |
| Aug. 11, 2015 | ILMN | S 10b5-1 | 2,000 | $208.74 | $417,480 | 650,040 Direct | -0.31% | Disposed | 3.8% (price as of 2026-08-20) |
Showing latest 100 of 4782 transactions
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 |
|---|---|---|---|---|---|---|---|
| June 4, 2020 | XCUR | Stock Option (right to buy) | Common Stock (21,693) | $2.79 | June 3, 2030 | 21,693 | Acquired |
| Aug. 7, 2018 | QTRX | Stock Option (Right to Buy) | Common Stock (7,900) | $14.80 | Aug. 7, 2028 | 7,900 | Acquired |
| Dec. 11, 2017 | QTRX | Series D Preferred Stock | Common Stock (135,647) | — | — | 435,967 | Disposed |
| Dec. 11, 2017 | QTRX | Series C Preferred Stock | Common Stock (28,691) | — | — | 92,215 | Disposed |
| Dec. 11, 2017 | QTRX | Series B Preferred Stock | Common Stock (334,985) | — | — | 1,076,642 | Disposed |
| Dec. 11, 2017 | QTRX | Series A-2 Preferred Stock | Common Stock (86,517) | — | — | 278,068 | Disposed |
| Dec. 11, 2017 | QTRX | Series A-1 Preferred Stock | Common Stock (32,959) | — | — | 105,931 | Disposed |
| Nov. 29, 2017 | QTRX | Series C Preferred Stock [F5] | Common Stock (219) | — | — | 707 | Acquired |
| Nov. 29, 2017 | QTRX | Warrant to Purchase Series C Preferred Stock (right to buy) [F5] | Series C Preferred Stock (707) | $3.33 | Nov. 30, 2017 | 707 | Disposed |
| Nov. 29, 2017 | QTRX | Series C Preferred Stock [F5] | Common Stock (952) | — | — | 3,060 | Acquired |
| Nov. 29, 2017 | QTRX | Warrant to Purchase Series C Preferred Stock (right to buy) [F5] | Series C Preferred Stock (3,060) | $3.33 | Nov. 30, 2017 | 3,060 | Disposed |
| Nov. 29, 2017 | QTRX | Series C Preferred Stock [F5] | Common Stock (1,346) | — | — | 4,327 | Acquired |
| Nov. 29, 2017 | QTRX | Warrant to Purchase Series C Preferred Stock (right to buy) [F5] | Series C Preferred Stock (4,327) | $3.33 | Nov. 30, 2017 | 4,327 | Disposed |
| Sept. 26, 2017 | XCUR | Stock Option (right to buy) | Common Stock | — | Jan. 4, 2027 | 24,824 | Acquired |
| Sept. 26, 2017 | XCUR | Stock Option (right to buy) | Common Stock | — | April 28, 2025 | 24,824 | Acquired |
| Sept. 26, 2017 | XCUR | Stock Option (right to buy) | Common Stock | — | Jan. 31, 2023 | 49,649 | Acquired |
| June 22, 2016 | DARE | Stock Option (right to buy) | Common Stock (20,000) | $2.08 | June 21, 2026 | 20,000 | Acquired |
| April 7, 2016 | ILMN | Non-qualified Stock Option (Right to Buy) | Common Stock (4,000) | $13.30 | June 8, 2016 | 4,000 | Disposed |
| March 15, 2016 | ILMN | Non-qualified Stock Option (Right to Buy) | Common Stock (4,000) | $13.30 | June 8, 2016 | 4,000 | Disposed |
| Sept. 23, 2015 | DARE | Stock Option (Right to Buy) | Common Stock (22,000) | $4.80 | Sept. 22, 2025 | 22,000 | Acquired |
| Jan. 27, 2015 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (4,000) | $6.22 | June 28, 2015 | 4,000 | Disposed |
| Jan. 20, 2015 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (4,000) | $6.22 | June 28, 2015 | 4,000 | Disposed |
| Jan. 13, 2015 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (4,000) | $6.22 | June 28, 2015 | 4,000 | Disposed |
| Jan. 6, 2015 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (4,000) | $6.22 | June 28, 2015 | 4,000 | Disposed |
| March 11, 2014 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (10,600) | $3.24 | May 20, 2014 | 10,600 | Disposed |
| March 10, 2014 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (9,400) | $3.24 | May 20, 2014 | 9,400 | Disposed |
| May 29, 2013 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (7,600) | $71.09 | May 29, 2023 | 7,600 | Acquired |
| April 17, 2013 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $1.03 | May 22, 2013 | 5,000 | Disposed |
| April 3, 2013 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $1.03 | May 22, 2013 | 5,000 | Disposed |
| March 20, 2013 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $1.03 | May 22, 2013 | 5,000 | Disposed |
| March 6, 2013 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $1.03 | May 22, 2013 | 5,000 | Disposed |
| May 11, 2012 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (20,000) | $3.25 | May 23, 2012 | 20,000 | Acquired |
| April 18, 2012 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (10,800) | $44.51 | April 18, 2022 | 10,800 | Acquired |
| May 19, 2011 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $5.15 | May 24, 2011 | 15,000 | Disposed |
| May 11, 2011 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $5.15 | May 24, 2011 | 5,000 | Disposed |
| May 10, 2011 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (10,800) | $75.66 | May 10, 2021 | 10,800 | Acquired |
| May 12, 2010 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (13,500) | $42.82 | May 12, 2020 | 13,500 | Acquired |
| May 8, 2009 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $36.29 | May 8, 2019 | 15,000 | Acquired |
| May 16, 2008 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (7,500) | $78.28 | May 16, 2018 | 7,500 | Acquired |
| June 7, 2007 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $35.15 | June 7, 2017 | 10,000 | Acquired |
| June 8, 2006 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (8,000) | $26.60 | June 8, 2016 | 8,000 | Acquired |
| June 28, 2005 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (8,000) | $12.45 | June 28, 2015 | 8,000 | Acquired |
| May 20, 2004 | ILMN | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $6.48 | May 20, 2014 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 6, 2017 | QTRX | Common Stock | 396,701 | Direct |
| Dec. 6, 2017 | QTRX | Series A-1 Preferred Stock→ Common Stock (32,959) | 32,959 | Direct |
| Dec. 6, 2017 | QTRX | Series A-2 Preferred Stock→ Common Stock (86,517) | 86,517 | Direct |
| Dec. 6, 2017 | QTRX | Series B Preferred Stock→ Common Stock (334,985) | 334,985 | Direct |
| Dec. 6, 2017 | QTRX | Series C Preferred Stock→ Common Stock (28,691) | 28,691 | Direct |
| Dec. 6, 2017 | QTRX | Series D Preferred Stock→ Common Stock (135,647) | 135,647 | Direct |
| Sept. 25, 2015 | DARE | No securities are beneficially owned. | 0 | Direct |