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Tananbaum James B.

Track

Insider profile

Performance

Overall performance
4.0
Performance over holding periods
4.0
30 days 90 days 120 days
Average return 54% 8.2% 15.1%
Success rate 99% 68% 82%
Transactions
11 100% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
Tananbaum James B.'s trades of Alumis 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
2026-01-12 2026-01-08
US Alumis Inc (ALMS)
B Purchase
19,434 +43.9%
353.72
US$4,680,989 		19,434 +43.9% 353.72 US$4,680,989
2026-01-12 2026-01-08
US Alumis Inc (ALMS)
B Purchase
18,120 -17.5%
43.36
US$1,074,334 		18,120 -17.5% 43.36 US$1,074,334
2025-11-25 2025-11-21
US Alumis Inc (ALMS)
B Purchase
14,385 -3.7%
121.03
US$3,040,719 		14,385 -3.7% 121.03 US$3,040,719
2025-11-19 2025-11-19
US Alumis Inc (ALMS)
B Purchase
190,500 +8.1%
6.56
US$1,249,680 		190,500 +8.1% 6.56 US$1,249,680
2025-11-19 2025-11-18
US Alumis Inc (ALMS)
B Purchase
117,374 +5.3%
6.19
US$726,545 		117,374 +5.3% 6.19 US$726,545
2025-11-19 2025-11-17
US Alumis Inc (ALMS)
B Purchase
150,000 +7.2%
5.59
US$838,500 		150,000 +7.2% 5.59 US$838,500
2025-11-19 2025-11-17
US Alumis Inc (ALMS)
B Purchase
50,000 +2.5%
5.60
US$280,000 		50,000 +2.5% 5.60 US$280,000
2025-05-06 2025-05-06
US Alumis Inc (ALMS)
B Purchase
20,000 +0.5%
4.34
US$86,800 		20,000 +0.5% 4.34 US$86,800
2025-05-06 2025-05-02
US Alumis Inc (ALMS)
B Purchase
25,000 +0.6%
4.62
US$115,500 		25,000 +0.6% 4.62 US$115,500
2024-07-03 2024-07-01
US Alumis Inc (ALMS)
B Purchase
2,187,500 +108.6%
16.00
US$35,000,000 		2,187,500 +108.6% 16.00 US$35,000,000
2024-07-03 2024-07-01
US Alumis Inc (ALMS)
B Purchase
312,500 +5.9%
16.00
US$5,000,000 		312,500 +5.9% 16.00 US$5,000,000
2023-05-10 2023-05-08
B Purchase
229,044 +78.5%
2.80
US$641,323 		229,044 +78.5% 2.80 US$641,323
2023-05-10 2023-05-08
B Purchase
1,550,956 +78.5%
2.80
US$4,342,677 		1,550,956 +78.5% 2.80 US$4,342,677
2021-12-23 2021-12-22
B Purchase
325,000 +inf%
10.00
US$3,250,000 		325,000 +inf% 10.00 US$3,250,000
2020-12-04 2020-12-03
B Purchase
125,000 +inf%
20.00
US$2,500,000 		125,000 +inf% 20.00 US$2,500,000
2020-12-04 2020-12-03
B Purchase
375,000 +inf%
20.00
US$7,500,000 		375,000 +inf% 20.00 US$7,500,000
2020-12-04 2020-12-03
B Purchase
500,000 +inf%
20.00
US$10,000,000 		500,000 +inf% 20.00 US$10,000,000