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Chow Gregory K.

Track

Insider profile

Performance

Overall performance
3.6
Performance over holding periods
4.2
30 days 90 days 120 days
Average return 21% 8.2% 15.1%
Success rate 100% 68% 82%
Transactions
5 80% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
Performance for realised trades
4.4
Average return 239%
Success rate 73%
Average holding period 220
Transactions 28
Ranking by realised performance
Chow Gregory K.'s trades of Sutro Biopharma 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
2025-10-16 2025-10-15
B Purchase
40,729 -27.8%
145.52
US$4,077,573 		40,729 -27.8% 145.52 US$4,077,573
2020-07-10 2020-07-10
S Sale
45,110 -49.3%
350.81
US$3,335,102 		45,110 -49.3% 350.81 US$3,335,102
2019-06-07 2019-06-05
B Purchase
29,671 +41.1%
429.40
US$1,600,330 		29,671 +41.1% 429.40 US$1,600,330
2019-03-14 2019-03-13
B Purchase
5,000 +4.1%
1.79
US$8,928 		5,000 +4.1% 1.79 US$8,928
2019-03-14 2019-03-13
B Purchase
10,000 +8.9%
1.74
US$17,394 		10,000 +8.9% 1.74 US$17,394