David Walt

Track

Insider profile

Currently holds positions in Quanterix Corp and Exicure Inc

Performance

Overall performance
3.7
Performance over holding periods
3.7
30 days 90 days 120 days
Average return 15% 8.2% 15.1%
Success rate 84% 68% 82%
Transactions
9 100% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Independent Director Quanterix Corp April 1, 2007 -
Independent Director Exicure Inc Jan. 1, 2013 -
Independent Director Dare Bioscience Inc Sept. 23, 2015 - July 19, 2017
Chairman - Scientific Advisory Board, Independent Director Illumina Inc June 1, 1998 - May 18, 2016
David Walt's trades of Quanterix Corp's stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Transaction date
Purchase
Price
192.94
Quantity 18,541 -1.3%
Value US$4,249,354
Transaction date
Purchase
Price
232.12
Quantity 97,037 +44.4%
Value US$1,158,887
Transaction date
Purchase
Price
465.79
Quantity 72,765 -18.3%
Value US$4,430,999
Transaction date
Purchase
Price
5.43
Quantity 131,869 +8.8%
Value US$716,576
Transaction date
Purchase
Price
13.29
Quantity 47,000 +3.3%
Value US$624,630
Transaction date
Purchase
Price
8.62
Quantity 150,000 +11.7%
Value US$1,293,495
Transaction date
Purchase
Price
16.66
Quantity 54,064 +4.4%
Value US$900,912
US Exicure Inc (XCUR)
Transaction date
Purchase
Price
1.21
Quantity 291,066 +16.5%
Value US$352,859
US Exicure Inc (XCUR)
Transaction date
Purchase
Price
2.00
Quantity 1,000,000 +130.3%
Value US$2,000,000
US Exicure Inc (XCUR)
Transaction date
Purchase
Price
3.00
Quantity 268,333 +53.7%
Value US$804,999
US Illumina Inc (ILMN)
Transaction date
Planned sale
Price
150.66
Quantity 1,300 -0.2%
Value US$195,861
US Illumina Inc (ILMN)
Transaction date
Planned sale
Price
150.06
Quantity 1,900 -0.3%
Value US$285,122
US Illumina Inc (ILMN)
Transaction date
Planned sale
Price
148.72
Quantity 800 -0.1%
Value US$118,979
Transaction date
Planned purchase
Price
2.08
Quantity 1,700 +1.0%
Value US$3,529
Transaction date
Planned purchase
Price
2.12
Quantity 4,460 +2.9%
Value US$9,441
Transaction date
Planned purchase
Price
2.22
Quantity 4,500 +3.5%
Value US$9,969
Transaction date
Planned purchase
Price
2.37
Quantity 4,395 +3.9%
Value US$10,409
Transaction date
Planned purchase
Price
2.41
Quantity 1,200 +1.1%
Value US$2,886
Transaction date
Planned purchase
Price
2.47
Quantity 4,500 +4.6%
Value US$11,114
Transaction date
Planned purchase
Price
2.35
Quantity 4,500 +5.1%
Value US$10,568
Transaction date
Planned purchase
Price
2.32
Quantity 4,500 +5.6%
Value US$10,428
Transaction date
Planned purchase
Price
2.52
Quantity 4,400 +6.2%
Value US$11,074
Transaction date
Planned purchase
Price
2.64
Quantity 4,400 +7.0%
Value US$11,628
Transaction date
Planned purchase
Price
2.89
Quantity 4,300 +8.0%
Value US$12,415
Transaction date
Planned purchase
Price
2.87
Quantity 4,500 +10.0%
Value US$12,937
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2025-06-13 2025-06-13
B Purchase
18,541 -1.3%
192.94
US$4,249,354 		18,541 -1.3% 192.94 US$4,249,354
2025-06-13 2025-06-12
B Purchase
97,037 +44.4%
232.12
US$1,158,887 		97,037 +44.4% 232.12 US$1,158,887
2025-06-09 2025-06-09
B Purchase
72,765 -18.3%
465.79
US$4,430,999 		72,765 -18.3% 465.79 US$4,430,999
2025-06-09 2025-06-06
B Purchase
131,869 +8.8%
5.43
US$716,576 		131,869 +8.8% 5.43 US$716,576
2024-09-17 2024-08-20
B Purchase
47,000 +3.3%
13.29
US$624,630 		47,000 +3.3% 13.29 US$624,630
2022-08-10 2022-08-10
B Purchase
150,000 +11.7%
8.62
US$1,293,495 		150,000 +11.7% 8.62 US$1,293,495
2020-03-17 2020-03-13
B Purchase
54,064 +4.4%
16.66
US$900,912 		54,064 +4.4% 16.66 US$900,912
2020-03-16 2020-03-13
US Exicure Inc (XCUR)
B Purchase
291,066 +16.5%
1.21
US$352,859 		291,066 +16.5% 1.21 US$352,859
2019-08-06 2019-08-02
US Exicure Inc (XCUR)
B Purchase
1,000,000 +130.3%
2.00
US$2,000,000 		1,000,000 +130.3% 2.00 US$2,000,000
2017-09-28 2017-09-26
US Exicure Inc (XCUR)
B Purchase
268,333 +53.7%
3.00
US$804,999 		268,333 +53.7% 3.00 US$804,999
2016-03-16 2016-03-15
US Illumina Inc (ILMN)
PlS Planned sale
1,300 -0.2%
150.66
US$195,861 		1,300 -0.2% 150.66 US$195,861
2016-03-16 2016-03-15
US Illumina Inc (ILMN)
PlS Planned sale
1,900 -0.3%
150.06
US$285,122 		1,900 -0.3% 150.06 US$285,122
2016-03-16 2016-03-15
US Illumina Inc (ILMN)
PlS Planned sale
800 -0.1%
148.72
US$118,979 		800 -0.1% 148.72 US$118,979
2016-02-23 2016-02-19
PP Planned purchase
1,700 +1.0%
2.08
US$3,529 		1,700 +1.0% 2.08 US$3,529
2016-02-19 2016-02-17
PP Planned purchase
4,460 +2.9%
2.12
US$9,441 		4,460 +2.9% 2.12 US$9,441
2016-02-10 2016-02-08
PP Planned purchase
4,500 +3.5%
2.22
US$9,969 		4,500 +3.5% 2.22 US$9,969
2016-02-04 2016-02-02
PP Planned purchase
4,395 +3.9%
2.37
US$10,409 		4,395 +3.9% 2.37 US$10,409
2016-02-02 2016-01-29
PP Planned purchase
1,200 +1.1%
2.41
US$2,886 		1,200 +1.1% 2.41 US$2,886
2016-01-29 2016-01-27
PP Planned purchase
4,500 +4.6%
2.47
US$11,114 		4,500 +4.6% 2.47 US$11,114
2016-01-27 2016-01-25
PP Planned purchase
4,500 +5.1%
2.35
US$10,568 		4,500 +5.1% 2.35 US$10,568
2016-01-25 2016-01-21
PP Planned purchase
4,500 +5.6%
2.32
US$10,428 		4,500 +5.6% 2.32 US$10,428
2016-01-21 2016-01-19
PP Planned purchase
4,400 +6.2%
2.52
US$11,074 		4,400 +6.2% 2.52 US$11,074
2016-01-19 2016-01-14
PP Planned purchase
4,400 +7.0%
2.64
US$11,628 		4,400 +7.0% 2.64 US$11,628
2016-01-14 2016-01-12
PP Planned purchase
4,300 +8.0%
2.89
US$12,415 		4,300 +8.0% 2.89 US$12,415
2016-01-12 2016-01-08
PP Planned purchase
4,500 +10.0%
2.87
US$12,937 		4,500 +10.0% 2.87 US$12,937