- Corporate Officers - T
- Tananbaum James B.
Insider Trading History of Tananbaum James B.
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Tananbaum James B. since 2013.
This trader's CIK number is 1581754.
At the time of last reporting, Tananbaum James B. was the Officer of Alumis Inc.. (stock ticker symbol ALMS).
Also see all insider trading activities at Alumis Inc..
Note that in the past
Tananbaum James B. also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Ambit Biosciences Corp (AMBI) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2013 | AMBI | 79,569 | $551,062 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Aimmune Therapeutics, Inc. (AIMT) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2016 | AIMT | 0 | $0 | 240,000 | $3,654,720 | 0 | $0 |
| 2015 | AIMT | 667,520 | $11,736,519 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Disc Medicine, Inc. (FSDC) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | FSDC | 441,500 | $4,415,000 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Alumis Inc. (ALMS) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | ALMS | 45,000 | $202,300 | 0 | $0 | 0 | $0 |
| 2024 | ALMS | 2,500,000 | $40,000,000 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Theseus Pharmaceuticals, Inc. (THRX) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | THRX | 700,000 | $2,079,000 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at 10x Genomics, Inc. (TXG) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | TXG | 0 | $0 | 2,200,000 | $160,438,500 | 0 | $0 |
| 2019 | TXG | 187,500 | $7,312,500 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Pardes Biosciences, Inc. (PRDS) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | PRDS | 1,547,904 | $2,321,856 | 0 | $0 | 0 | $0 |
| 2021 | PRDS | 602,500 | $6,025,000 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Aerie Pharmaceuticals Inc (AERI) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | AERI | 0 | $0 | 1,000,000 | $17,070,000 | 0 | $0 |
| 2019 | AERI | 930,455 | $21,789,205 | 0 | $0 | 0 | $0 |
| 2017 | AERI | 0 | $0 | 20,000 | $1,119,000 | 0 | $0 |
| 2016 | AERI | 250,000 | $4,375,000 | 50,000 | $2,017,000 | 0 | $0 |
Yearly summary of insider trading at Kinnate Biopharma Inc. (KNTE) by Tananbaum James B.
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | KNTE | 1,780,000 | $4,984,000 | 0 | $0 | 0 | $0 |
| 2020 | KNTE | 1,000,000 | $20,000,000 | 0 | $0 | 0 | $0 |
Insider trading activities at 9 companies by Tananbaum James B.:
1. Ambit Biosciences Corp (AMBI)
2. Aimmune Therapeutics, Inc. (AIMT)
3. Disc Medicine, Inc. (FSDC)
4. Alumis Inc. (ALMS)
5. Theseus Pharmaceuticals, Inc. (THRX)
6. 10x Genomics, Inc. (TXG)
7. Pardes Biosciences, Inc. (PRDS)
8. Aerie Pharmaceuticals Inc (AERI)
9. Kinnate Biopharma Inc. (KNTE)
Table 1. Insider trading of Ambit Biosciences Corp (AMBI) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2013-05-21 | AMBI | Buy | 1,811 | 6.84 | 12,379 |
| 2013-05-20 | AMBI | Buy | 8,120 | 6.90 | 56,044 |
| 2013-06-03 | AMBI | Buy | 10,000 | 6.99 | 69,910 |
| 2013-06-14 | AMBI | Buy | 7,500 | 7.46 | 55,965 |
| 2013-05-17 | AMBI | Buy | 36,616 | 6.77 | 247,963 |
| 2013-06-24 | AMBI | Buy | 4,817 | 6.77 | 32,591 |
| 2013-06-12 | AMBI | Buy | 5,700 | 7.45 | 42,482 |
| 2013-05-22 | AMBI | Buy | 5,005 | 6.74 | 33,728 |
Table 2. Insider trading of Aimmune Therapeutics, Inc. (AIMT) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2016-05-31 | AIMT | Sale | 240,000 | 15.23 | 3,654,720 |
| 2015-08-24 | AIMT | Buy | 25,485 | 19.66 | 500,907 |
| 2015-08-11 | AIMT | Buy | 642,035 | 17.50 | 11,235,612 |
Table 3. Insider trading of Disc Medicine, Inc. (FSDC) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-08-14 | FSDC | Buy | 441,500 | 10.00 | 4,415,000 |
Table 4. Insider trading of Alumis Inc. (ALMS) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-05-06 | ALMS | Buy | 20,000 | 4.34 | 86,800 |
| 2025-05-02 | ALMS | Buy | 25,000 | 4.62 | 115,500 |
| 2024-07-01 | ALMS | Buy | 2,500,000 | 16.00 | 40,000,000 |
Table 5. Insider trading of Theseus Pharmaceuticals, Inc. (THRX) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-07-17 | THRX | Buy | 700,000 | 2.97 | 2,079,000 |
Table 6. Insider trading of 10x Genomics, Inc. (TXG) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-05-13 | TXG | Sale | 1,450,000 | 80.13 | 116,188,500 |
| 2020-03-17 | TXG | Sale | 750,000 | 59.00 | 44,250,000 |
| 2019-09-12 | TXG | Buy | 187,500 | 39.00 | 7,312,500 |
Table 7. Insider trading of Pardes Biosciences, Inc. (PRDS) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-04-05 | PRDS | Buy | 773,952 | 1.50 | 1,160,928 |
| 2023-04-05 | PRDS | Buy | 773,952 | 1.50 | 1,160,928 |
| 2021-02-19 | FSII | Buy | 602,500 | 10.00 | 6,025,000 |
Table 8. Insider trading of Aerie Pharmaceuticals Inc (AERI) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-02-27 | AERI | Sale | 1,000,000 | 17.07 | 17,070,000 |
| 2019-09-04 | AERI | Buy | 100,200 | 18.48 | 1,851,696 |
| 2019-09-05 | AERI | Buy | 15,700 | 18.42 | 289,194 |
| 2019-08-30 | AERI | Buy | 25,000 | 21.36 | 534,000 |
| 2019-09-03 | AERI | Buy | 50,000 | 21.00 | 1,049,750 |
| 2019-08-22 | AERI | Buy | 6,700 | 23.68 | 158,656 |
| 2019-08-23 | AERI | Buy | 38,300 | 23.42 | 896,986 |
| 2019-08-21 | AERI | Buy | 1,153 | 23.25 | 26,807 |
| 2019-08-16 | AERI | Buy | 100,000 | 24.23 | 2,423,000 |
| 2019-08-19 | AERI | Buy | 3,847 | 23.34 | 89,788 |
| 2019-08-20 | AERI | Buy | 50,000 | 23.21 | 1,160,500 |
| 2019-08-14 | AERI | Buy | 100,000 | 23.73 | 2,373,000 |
| 2019-08-13 | AERI | Buy | 250,000 | 25.22 | 6,305,000 |
| 2019-08-12 | AERI | Buy | 189,555 | 24.43 | 4,630,828 |
| 2017-05-26 | AERI | Sale | 20,000 | 55.95 | 1,119,000 |
| 2016-10-06 | AERI | Sale | 50,000 | 40.34 | 2,017,000 |
| 2016-07-22 | AERI | Buy | 250,000 | 17.50 | 4,375,000 |
Table 9. Insider trading of Kinnate Biopharma Inc. (KNTE) by Tananbaum James B.
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-05-08 | KNTE | Buy | 1,780,000 | 2.80 | 4,984,000 |
| 2020-12-03 | KNTE | Buy | 1,000,000 | 20.00 | 20,000,000 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Tananbaum James B.
(Officer of Alumis Inc. at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.