Day One Biopharmaceuticals Inc (DAWN)

Healthcare Pharmaceuticals & Medical Research Biotechnology & Medical Research

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Ticker: DAWN Exchange: NSM


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale
Past 90 days
 
Value bought
 
Value sold
 
Net insiders buying
 
Trades (buy and sell)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Total value Details
2022-09-20 2022-09-20 S Sale

Canaan XI L.P.

Major owner
146,404 -1.6%
19.50
2,854,878 USD 		146,404 -1.6% 19.50 2,854,878 USD
2022-09-20 2022-09-20 S Sale

Grant Julie Papanek

Non-Executive Director
2,266 -0.0%
20.10
45,547 USD 		2,266 -0.0% 20.10 45,547 USD
2022-09-20 2022-09-20 S Sale

Grant Julie Papanek

Non-Executive Director
146,404 -1.6%
19.50
2,854,878 USD 		146,404 -1.6% 19.50 2,854,878 USD
2022-09-20 2022-09-19 S Sale

Canaan XI L.P.

Major owner
76,725 -0.8%
20.57
1,578,233 USD 		76,725 -0.8% 20.57 1,578,233 USD
2022-09-20 2022-09-19 S Sale

Grant Julie Papanek

Non-Executive Director
76,725 -0.8%
20.57
1,578,233 USD 		76,725 -0.8% 20.57 1,578,233 USD
2022-09-20 2022-09-16 S Sale

Canaan XI L.P.

Major owner
3,722 -0.0%
22.04
82,033 USD 		3,722 -0.0% 22.04 82,033 USD
2022-09-20 2022-09-16 S Sale

Canaan XI L.P.

Major owner
111,585 -1.2%
21.53
2,402,425 USD 		111,585 -1.2% 21.53 2,402,425 USD
2022-09-20 2022-09-16 S Sale

Grant Julie Papanek

Non-Executive Director
3,722 -0.0%
22.04
82,033 USD 		3,722 -0.0% 22.04 82,033 USD
2022-09-20 2022-09-16 S Sale

Grant Julie Papanek

Non-Executive Director
111,585 -1.2%
21.53
2,402,425 USD 		111,585 -1.2% 21.53 2,402,425 USD
2022-09-15 2022-09-15 S Sale

Grant Julie Papanek

Non-Executive Director
3,314 -0.0%
23.73
78,641 USD 		3,314 -0.0% 23.73 78,641 USD
2022-09-15 2022-09-15 S Sale

Grant Julie Papanek

Non-Executive Director
47,967 -0.5%
22.79
1,093,168 USD 		47,967 -0.5% 22.79 1,093,168 USD
2022-09-15 2022-09-15 S Sale

Canaan XI L.P.

Major owner
3,314 -0.0%
23.73
78,641 USD 		3,314 -0.0% 23.73 78,641 USD
2022-09-15 2022-09-15 S Sale

Canaan XI L.P.

Major owner
47,967 -0.5%
22.79
1,093,168 USD 		47,967 -0.5% 22.79 1,093,168 USD
2022-09-15 2022-09-14 S Sale

Grant Julie Papanek

Non-Executive Director
384 -0.0%
24.29
9,327 USD 		384 -0.0% 24.29 9,327 USD
2022-09-15 2022-09-14 S Sale

Grant Julie Papanek

Non-Executive Director
105,727 -1.1%
23.68
2,503,615 USD 		105,727 -1.1% 23.68 2,503,615 USD
2022-09-15 2022-09-14 S Sale

Canaan XI L.P.

Major owner
384 -0.0%
24.29
9,327 USD 		384 -0.0% 24.29 9,327 USD
2022-09-15 2022-09-14 S Sale

Canaan XI L.P.

Major owner
105,727 -1.1%
23.68
2,503,615 USD 		105,727 -1.1% 23.68 2,503,615 USD
2022-09-15 2022-09-13 S Sale

Grant Julie Papanek

Non-Executive Director
1,003 -0.0%
25.01
25,085 USD 		1,003 -0.0% 25.01 25,085 USD
2022-09-15 2022-09-13 S Sale

Grant Julie Papanek

Non-Executive Director
86,644 -0.9%
24.39
2,113,247 USD 		86,644 -0.9% 24.39 2,113,247 USD
2022-09-15 2022-09-13 S Sale

Canaan XI L.P.

Major owner
1,003 -0.0%
25.01
25,085 USD 		1,003 -0.0% 25.01 25,085 USD
2022-09-15 2022-09-13 S Sale

Canaan XI L.P.

Major owner
86,644 -0.9%
24.39
2,113,247 USD 		86,644 -0.9% 24.39 2,113,247 USD
2022-09-15 2022-09-02 PS Planned sale

Grant Papanek Julie

Non-Executive Director
5,000 -1.1%
23.82
119,108 USD 		5,000 -1.1% 23.82 119,108 USD
2022-09-06 2022-09-01 PS Planned sale

York Charles N II

COO, CFO and Secretary

Officer
1,394 -0.4%
23.80
33,175 USD 		1,394 -0.4% 23.80 33,175 USD
2022-09-06 2022-09-01 PS Planned sale

York Charles N II

COO, CFO and Secretary

Officer
8,606 -2.7%
23.16
199,309 USD 		8,606 -2.7% 23.16 199,309 USD
2022-09-06 2022-09-01 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
1,859 -0.1%
23.79
44,227 USD 		1,859 -0.1% 23.79 44,227 USD
2022-09-06 2022-09-01 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
10,641 -0.8%
23.15
246,354 USD 		10,641 -0.8% 23.15 246,354 USD
2022-09-06 2022-09-01 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
1,859 -0.1%
23.79
44,227 USD 		1,859 -0.1% 23.79 44,227 USD
2022-09-06 2022-09-01 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
10,641 -0.8%
23.15
246,354 USD 		10,641 -0.8% 23.15 246,354 USD
2022-09-06 2022-09-01 PS Planned sale

Grant Papanek Julie

Non-Executive Director
531 -0.1%
23.80
12,636 USD 		531 -0.1% 23.80 12,636 USD
2022-09-06 2022-09-01 PS Planned sale

Grant Papanek Julie

Non-Executive Director
4,469 -1.0%
23.21
103,723 USD 		4,469 -1.0% 23.21 103,723 USD
2022-09-06 2022-09-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
1,589 -0.1%
23.79
37,808 USD 		1,589 -0.1% 23.79 37,808 USD
2022-09-06 2022-09-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
8,411 -0.6%
23.14
194,643 USD 		8,411 -0.6% 23.14 194,643 USD
2022-08-17 2022-08-16 S Sale

Bender Jeremy

Chief Executive Officer

Executive Director
4,003 -0.3%
24.31
97,313 USD 		4,003 -0.3% 24.31 97,313 USD
2022-08-17 2022-08-16 S Sale

York Charles N II

COO, CFO and Secretary

Officer
1,089 -0.3%
24.31
26,474 USD 		1,089 -0.3% 24.31 26,474 USD
2022-08-17 2022-08-16 S Sale

Blackman Samuel C.

Chief Medical Officer

Officer
941 -0.1%
24.31
22,876 USD 		941 -0.1% 24.31 22,876 USD
2022-08-08 2022-08-05 PS Planned sale

Grant Papanek Julie

Non-Executive Director
5,000 -1.1%
20.00
100,000 USD 		5,000 -1.1% 20.00 100,000 USD
2022-08-08 2022-08-04 PS Planned sale

Grant Papanek Julie

Non-Executive Director
5,000 -1.1%
20.00
100,004 USD 		5,000 -1.1% 20.00 100,004 USD
2022-08-05 2022-08-04 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
12,500 -1.0%
20.00
250,021 USD 		12,500 -1.0% 20.00 250,021 USD
2022-08-05 2022-08-04 PS Planned sale

York Charles N II

COO, CFO and Secretary

Officer
10,000 -3.0%
20.05
200,541 USD 		10,000 -3.0% 20.05 200,541 USD
2022-08-03 2022-08-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
10,000 -0.8%
16.88
168,810 USD 		10,000 -0.8% 16.88 168,810 USD
2022-07-20 2022-07-18 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
2,600 -0.2%
20.00
52,003 USD 		2,600 -0.2% 20.00 52,003 USD
2022-07-20 2022-07-18 PS Planned sale

Grant Papanek Julie

Non-Executive Director
2,600 -0.6%
20.00
52,001 USD 		2,600 -0.6% 20.00 52,001 USD
2022-07-20 2022-07-18 PS Planned sale

York Charles N II

COO, CFO and Secretary

Officer
2,500 -0.7%
20.00
50,000 USD 		2,500 -0.7% 20.00 50,000 USD
2022-07-12 2022-07-08 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
1,795 -0.1%
20.00
35,900 USD 		1,795 -0.1% 20.00 35,900 USD
2022-07-12 2022-07-08 PS Planned sale

Grant Papanek Julie

Non-Executive Director
1,242 -0.3%
20.00
24,840 USD 		1,242 -0.3% 20.00 24,840 USD
2022-07-12 2022-07-08 PS Planned sale

York Charles N II

COO, CFO and Secretary

Officer
1,416 -0.4%
20.00
28,320 USD 		1,416 -0.4% 20.00 28,320 USD
2022-07-06 2022-07-05 PS Planned sale

York Charles N II

COO, CFO and Secretary

Officer
800 -0.2%
20.00
16,000 USD 		800 -0.2% 20.00 16,000 USD
2022-07-06 2022-07-05 PS Planned sale

Grant Papanek Julie

Non-Executive Director
800 -0.2%
20.00
16,000 USD 		800 -0.2% 20.00 16,000 USD
2022-07-06 2022-07-05 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
857 -0.1%
20.00
17,140 USD 		857 -0.1% 20.00 17,140 USD
2022-07-06 2022-07-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
867 -0.1%
19.95
17,296 USD 		867 -0.1% 19.95 17,296 USD
2022-07-06 2022-07-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
3,309 -0.3%
19.23
63,625 USD 		3,309 -0.3% 19.23 63,625 USD
2022-07-06 2022-07-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
5,824 -0.4%
18.24
106,237 USD 		5,824 -0.4% 18.24 106,237 USD
2022-07-06 2022-07-01 PS Planned sale

York Charles N II

COO, CFO and Secretary

Officer
1,479 -0.4%
20.00
29,580 USD 		1,479 -0.4% 20.00 29,580 USD
2022-07-06 2022-07-01 PS Planned sale

Grant Papanek Julie

Non-Executive Director
1,000 -0.2%
20.00
20,000 USD 		1,000 -0.2% 20.00 20,000 USD
2022-07-06 2022-07-01 PS Planned sale

Bender Jeremy

Chief Executive Officer

Executive Director
1,746 -0.1%
20.00
34,920 USD 		1,746 -0.1% 20.00 34,920 USD
2022-06-22 2022-06-17 B Purchase

Atlas Venture Opportunity Fund II, L.P.

Major owner
766,667 +inf%
15.00
11,500,005 USD 		766,667 +inf% 15.00 11,500,005 USD
2022-06-22 2022-06-17 B Purchase

Gladstone Michael

Non-Executive Director
766,667 +inf%
15.00
11,500,005 USD 		766,667 +inf% 15.00 11,500,005 USD
2022-06-21 2022-06-17 B Purchase

AI Day1 LLC

Affiliate of 10% Owner

Major owner
1,200,000 +12.7%
15.00
18,000,000 USD 		1,200,000 +12.7% 15.00 18,000,000 USD
2022-06-17 2022-06-15 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
50,000 -3.7%
16.26
813,155 USD 		50,000 -3.7% 16.26 813,155 USD
2022-01-20 2022-01-20 B Purchase

AI Day1 LLC

Affiliate of 10% Owner

Major owner
4,615 +0.0%
14.73
67,976 USD 		4,615 +0.0% 14.73 67,976 USD
2022-01-20 2022-01-19 B Purchase

AI Day1 LLC

Affiliate of 10% Owner

Major owner
58,818 +0.6%
14.70
864,566 USD 		58,818 +0.6% 14.70 864,566 USD
2022-01-20 2022-01-18 B Purchase

AI Day1 LLC

Affiliate of 10% Owner

Major owner
43,429 +0.5%
14.26
619,367 USD 		43,429 +0.5% 14.26 619,367 USD
2022-01-05 2022-01-03 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
3,328 -0.2%
17.41
57,944 USD 		3,328 -0.2% 17.41 57,944 USD
2022-01-05 2022-01-03 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
6,672 -0.5%
16.95
113,074 USD 		6,672 -0.5% 16.95 113,074 USD
2021-12-09 2021-12-08 S Sale

TAKEDA PHARMACEUTICAL CO LTD

Major owner
110,338 -1.8%
18.03
1,989,394 USD 		110,338 -1.8% 18.03 1,989,394 USD
2021-12-09 2021-12-07 S Sale

TAKEDA PHARMACEUTICAL CO LTD

Major owner
58,190 -0.9%
19.50
1,134,705 USD 		58,190 -0.9% 19.50 1,134,705 USD
2021-12-09 2021-12-07 S Sale

TAKEDA PHARMACEUTICAL CO LTD

Major owner
128,745 -2.0%
18.43
2,372,770 USD 		128,745 -2.0% 18.43 2,372,770 USD
2021-12-07 2021-12-06 S Sale

TAKEDA PHARMACEUTICAL CO LTD

Major owner
97,692 -1.5%
18.05
1,763,341 USD 		97,692 -1.5% 18.05 1,763,341 USD
2021-12-07 2021-12-03 S Sale

TAKEDA PHARMACEUTICAL CO LTD

Major owner
12,517 -0.2%
18.47
231,189 USD 		12,517 -0.2% 18.47 231,189 USD
2021-12-03 2021-12-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
409 -0.0%
18.24
7,462 USD 		409 -0.0% 18.24 7,462 USD
2021-12-03 2021-12-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
4,502 -0.3%
17.81
80,189 USD 		4,502 -0.3% 17.81 80,189 USD
2021-12-03 2021-12-01 PS Planned sale

Blackman Samuel C.

Chief Medical Officer

Officer
5,089 -0.4%
16.62
84,591 USD 		5,089 -0.4% 16.62 84,591 USD
2021-06-03 2021-06-01 B Purchase

AI Day 1 LLC

Affiliate of 10% Owner

Major owner
875,000 +10.3%
16.00
14,000,000 USD 		875,000 +10.3% 16.00 14,000,000 USD
2021-06-02 2021-06-01 B Purchase

Canaan XI L.P.

Major owner
13,000 +0.1%
16.00
208,000 USD 		13,000 +0.1% 16.00 208,000 USD
2021-06-02 2021-06-01 B Purchase

Atlas Venture Fund XI, L.P.

Major owner
250,000 +inf%
16.00
4,000,000 USD 		250,000 +inf% 16.00 4,000,000 USD