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David Watson

Insider profile

Currently holds a position at Apellis Pharmaceuticals Inc

Performance

Overall performance
3.4

Performance over holding periods
3.4
30 days 90 days 120 days
Average return 1% 8.2% 15.1%
Success rate 50% 68% 82%
Transactions
34 18% Buy
34 71% Buy
47 69% Buy

Positions

Position Company Period
General Counsel, Vice President of Corporate Development Apellis Pharmaceuticals Inc Jan. 1, 2014 -

David Watson's trades of Apellis Pharmaceuticals Inc's stock


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value
Number of shares Price Value Details
2026-01-23 2026-01-22 S Sale
17,221 +20.1%
151.45
US$2,097,167
17,221 +20.1% 151.45 US$2,097,167
2026-01-22 2026-01-22 PrS Proposed sale
31,898
204.98
US$4,205,909
31,898 204.98 US$4,205,909
2026-01-21 2026-01-20 S Sale
39,538 -9.5%
439.75
US$1,455,689
39,538 -9.5% 439.75 US$1,455,689
2026-01-20 2026-01-20 PrS Proposed sale
2,475
19.79
US$48,987
2,475 19.79 US$48,987
2026-01-15 2026-01-13 S Sale
5,780 -5.5%
22.19
US$128,242
5,780 -5.5% 22.19 US$128,242
2026-01-13 2026-01-13 PrS Proposed sale
5,780
22.19
US$128,242
5,780 22.19 US$128,242
2025-12-18 2025-12-16 PlS Planned sale
5,000 -4.6%
24.49
US$122,450
5,000 -4.6% 24.49 US$122,450
2025-12-16 2025-12-16 PrS Proposed sale
5,000
24.49
US$122,450
5,000 24.49 US$122,450
2025-12-02 2025-12-02 B Purchase
2,500
12.19
£30,475
2,500 12.19 £30,475
2025-11-18 2025-11-17 PlS Planned sale
5,000 -4.4%
20.06
US$100,300
5,000 -4.4% 20.06 US$100,300
2025-11-17 2025-11-17 PrS Proposed sale
5,000
20.06
US$100,300
5,000 20.06 US$100,300
2025-10-17 2025-10-16 PlS Planned sale
5,000 -4.2%
25.22
US$126,100
5,000 -4.2% 25.22 US$126,100
2025-10-16 2025-10-16 PrS Proposed sale
5,000
25.22
US$126,100
5,000 25.22 US$126,100
2025-09-18 2025-09-16 PlS Planned sale
5,000 -4.0%
24.34
US$121,700
5,000 -4.0% 24.34 US$121,700
2025-09-16 2025-09-16 PrS Proposed sale
5,000
24.34
US$121,700
5,000 24.34 US$121,700
2025-09-12 2025-09-10 S Sale
20,000 -28.5%
26.17
US$523,400
20,000 -28.5% 26.17 US$523,400
2025-09-10 2025-09-10 PrS Proposed sale
20,000
26.17
US$523,436
20,000 26.17 US$523,436
2025-08-19 2025-08-18 PlS Planned sale
5,000 -3.9%
27.80
US$139,000
5,000 -3.9% 27.80 US$139,000
2025-08-18 2025-08-18 PrS Proposed sale
5,000
27.80
US$139,000
5,000 27.80 US$139,000
2025-07-18 2025-07-16 PlS Planned sale
5,000 -3.7%
19.55
US$97,750
5,000 -3.7% 19.55 US$97,750
2025-07-16 2025-07-16 PrS Proposed sale
5,000
19.55
US$97,750
5,000 19.55 US$97,750
2025-06-18 2025-06-16 PlS Planned sale
5,000 -3.6%
18.77
US$93,850
5,000 -3.6% 18.77 US$93,850
2025-06-16 2025-06-16 PrS Proposed sale
5,000
18.77
US$93,850
5,000 18.77 US$93,850
2025-03-06 2025-03-05 S Sale
5,569 -3.9%
25.10
US$139,789
5,569 -3.9% 25.10 US$139,789
2025-03-05 2025-03-05 PrS Proposed sale
5,569
25.10
US$139,789
5,569 25.10 US$139,789
2025-01-30 2025-01-29 S Sale
695 -0.5%
29.52
US$20,519
695 -0.5% 29.52 US$20,519
2025-01-29 2025-01-29 PrS Proposed sale
695
29.52
US$20,519
695 29.52 US$20,519
2025-01-23 2025-01-22 S Sale
3,323 -2.2%
30.43
US$101,104
3,323 -2.2% 30.43 US$101,104
2025-01-22 2025-01-22 PrS Proposed sale
3,323
30.43
US$101,104
3,323 30.43 US$101,104
2025-01-21 2025-01-17 S Sale
2,201 -2.0%
29.96
US$65,938
2,201 -2.0% 29.96 US$65,938
2025-01-17 2025-01-17 PrS Proposed sale
2,201
29.96
US$65,938
2,201 29.96 US$65,938
2025-01-14 2025-01-13 S Sale
4,965 -4.4%
28.70
US$142,506
4,965 -4.4% 28.70 US$142,506
2025-01-13 2025-01-13 PrS Proposed sale
5,056
28.70
US$145,088
5,056 28.70 US$145,088
2024-12-13 2024-12-11 S Sale
5,000 -4.2%
34.24
US$171,175
5,000 -4.2% 34.24 US$171,175
2024-12-11 2024-12-11 PrS Proposed sale
5,000
34.24
US$171,175
5,000 34.24 US$171,175
2024-06-27 2024-06-25 B Purchase
2,500
0.00
£11
2,500 0.00 £11
2024-02-13 2024-02-12 S Sale
781 -0.7%
67.77
US$52,926
781 -0.7% 67.77 US$52,926
2024-02-12 2024-02-12 PrS Proposed sale
781
67.77
US$52,926
781 67.77 US$52,926
2024-01-31 2024-01-29 S Sale
906 -0.9%
64.14
US$58,109
906 -0.9% 64.14 US$58,109
2024-01-29 2024-01-29 PrS Proposed sale
906
64.14
US$58,109
906 64.14 US$58,109
2024-01-23 2024-01-22 S Sale
4,184 -3.8%
65.00
US$271,943
4,184 -3.8% 65.00 US$271,943
2024-01-22 2024-01-22 PrS Proposed sale
4,184
65.00
US$271,943
4,184 65.00 US$271,943
2024-01-18 2024-01-17 B Purchase
36,000
1.42
£51,120
36,000 1.42 £51,120
2024-01-17 2024-01-16 S Sale
4,240 -3.7%
66.81
US$283,268
4,240 -3.7% 66.81 US$283,268
2024-01-16 2024-01-16 PrS Proposed sale
4,240
66.81
US$283,268
4,240 66.81 US$283,268