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Eric Shaff

Track

Insider profile

Currently holds a position at Seres Therapeutics Inc

Performance

Overall performance
1.6
Performance over holding periods
1.6
30 days 90 days 120 days
Average return -4% 8.2% 15.1%
Success rate 0% 68% 82%
Transactions
1 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
President, Chief Executive Officer, Director Seres Therapeutics Inc Jan. 15, 2019 -
Chief Financial Officer, Chief Operating Officer, Executive Vice President, Treasurer Seres Therapeutics Inc Jan. 30, 2018 - Jan. 15, 2019
Chief Financial Officer, Executive Vice President Seres Therapeutics Inc Nov. 1, 2014 - Jan. 30, 2018
Eric Shaff's trades of Seres Therapeutics Inc's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• 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
2026-05-19 2026-05-18
PlS Planned sale
18,148 -19.8%
448.72
US$3,980,316 		18,148 -19.8% 448.72 US$3,980,316
2026-02-18 2026-02-15
PlS Planned sale
26,188 -16.0%
199.43
US$4,805,037 		26,188 -16.0% 199.43 US$4,805,037
2025-11-18 2025-11-15
PlS Planned sale
32,154 +8.9%
173.78
US$3,878,340 		32,154 +8.9% 173.78 US$3,878,340
2025-08-19 2025-08-18
PlS Planned sale
217 -2.0%
16.65
US$3,613 		217 -2.0% 16.65 US$3,613
2025-05-19 2025-05-16
PlS Planned sale
220 -2.1%
7.28
US$1,602 		220 -2.1% 7.28 US$1,602
2025-02-19 2025-02-18
PlS Planned sale
12,726 -6.2%
0.81
US$10,314 		12,726 -6.2% 0.81 US$10,314
2024-11-19 2024-11-18
PlS Planned sale
2,505 -1.4%
0.54
US$1,355 		2,505 -1.4% 0.54 US$1,355
2024-10-29 2024-10-28
PlS Planned sale
8,748 -5.0%
0.69
US$6,037 		8,748 -5.0% 0.69 US$6,037
2024-08-19 2024-08-16
PlS Planned sale
2,518 -1.7%
0.84
US$2,115 		2,518 -1.7% 0.84 US$2,115
2024-05-17 2024-05-15
PlS Planned sale
2,435 -1.7%
0.94
US$2,289 		2,435 -1.7% 0.94 US$2,289
2024-02-16 2024-02-16
PlS Planned sale
11,549 -7.9%
1.08
US$12,473 		11,549 -7.9% 1.08 US$12,473
2023-10-31 2023-10-30
PlS Planned sale
8,552 -6.9%
1.35
US$11,545 		8,552 -6.9% 1.35 US$11,545
2019-01-29 2019-01-28
S Sale
4,378 -25.4%
5.75
US$25,188 		4,378 -25.4% 5.75 US$25,188