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JT

James B. Tananbaum

ALMS
DIRECTOR · ALUMIS INC. · CIK 0001581754
FILING MIX · LIFETIME60%/40%
BUYS
51
SELLS
34
TOTAL VALUE
$236.27M
COMPANIES
4
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
2,378,788
AVG SELL PX
$72.93
TRADE KIND
SHOWING 85 / 85
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
12 backtested trades · 8 horizons · 14 pending
Forward-return performance of every backtestable P/S trade by James B. Tananbaum, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d12+100.00%+12.28%+1.22%+11.06%+5.97%—
14d12+66.67%+14.16%+3.11%+11.05%+6.93%—
30d12+50.00%+37.08%+3.95%+33.13%+23.62%—
60d12+66.67%+113.99%+6.07%+107.92%+32.77%—
90d12+50.00%+127.40%+8.35%+119.05%+26.18%—
180d12(2 pending)+40.00%+136.69%+19.16%+117.53%+66.66%—
1y12(6 pending)+0.00%+59.63%+40.82%+18.81%+22.55%—
2y12(6 pending)+66.67%+29.29%+54.64%-25.34%-68.14%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ALMS · 0 shares · as of Apr 1, 2026
01,425,6342,851,2684,276,9025,702,53620252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 51 buys / 34 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ALMS
ALUMIS INC.
SALE
1,123,337——0Apr 1, 2026Apr 3, 2026 ↗View →
ALMS
ALUMIS INC.
PURCHASE
680,486——680,486Apr 1, 2026Apr 3, 2026 ↗View →
ALMS
ALUMIS INC.
PURCHASE
1,123,337——1,123,337Apr 1, 2026Apr 3, 2026 ↗View →
ALMS
ALUMIS INC.
SALE
1,176,470——0Apr 1, 2026Apr 3, 2026 ↗View →
ALMS
ALUMIS INC.
PURCHASE
117,647$17.00$2.00M5,702,536Jan 8, 2026Jan 12, 2026 ↗View →
ALMS
ALUMIS INC.
PURCHASE
294,117$17.00$5.00M2,908,332Jan 8, 2026Jan 12, 2026 ↗View →
ALMS
ALUMIS INC.
PURCHASE
72,212$7.38$532.9K2,614,215Nov 21, 2025Nov 25, 2025 ↗View →
ALMS
ALUMIS INC.
PURCHASE
190,500$6.56$1.25M2,542,003Nov 19, 2025Nov 19, 2025 ↗View →
ALMS
ALUMIS INC.
PURCHASE
117,374$6.19$726.5K2,351,503Nov 18, 2025Nov 19, 2025 ↗View →
ALMS
ALUMIS INC.
PURCHASE
150,000$5.59$838.5K2,234,129Nov 17, 2025Nov 19, 2025 ↗View →
ALMS
ALUMIS INC.
PURCHASE
50,000$5.60$280.0K2,084,129Nov 17, 2025Nov 19, 2025 ↗View →
ALMS
ALUMIS INC.
PURCHASE
20,000$4.34$86.8K4,247,670May 6, 2025May 6, 2025 ↗View →
ALMS
ALUMIS INC.
PURCHASE
25,000$4.62$115.5K4,227,670May 2, 2025May 6, 2025 ↗View →
ALMS
ALUMIS INC.
SALE
560,076——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
481,283——481,283Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
1,122,994——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
1,944,577——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
622,344——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
967,567——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
312,500$16.00$5.00M5,584,889Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
311,172——311,172Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
622,344——4,249,991Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
194,459——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
560,076——1,041,359Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
311,172——1,278,739Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
967,567——967,567Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
681,598——2,034,129Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
1,022,398——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
681,598——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
194,459——194,459Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
481,283——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
1,703,998——2,015,170Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
1,944,577——1,944,577Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
2,187,500$16.00$35.00M4,202,670Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
1,703,998——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
SALE
311,172——0Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
311,172——1,352,531Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
681,598——1,960,337Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
560,076——3,627,647Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
1,122,994——3,067,571Jul 1, 2024Jul 3, 2024 ↗View →
ALMS
ALUMIS INC.
PURCHASE
1,022,398——5,272,389Jul 1, 2024Jul 3, 2024 ↗View →
ACRS
ACLARIS THERAPEUTICS, INC.
SALE
1,954,904——0Nov 1, 2021Nov 3, 2021 ↗View →
ACRS
ACLARIS THERAPEUTICS, INC.
PURCHASE
8,276——8,276Nov 1, 2021Nov 3, 2021 ↗View →
QSI
QUANTUM-SI INC
PURCHASEGRANT
Stock grant
20,512——20,512Jun 11, 2021Jun 14, 2021 ↗View →
QSI
QUANTUM-SI INC
PURCHASEGRANT
Stock grant
348,125$0.00$3481,598,125Jun 10, 2021Jun 14, 2021 ↗View →
QSI
QUANTUM-SI INC
PURCHASEGRANT
Stock grant
743,936——743,936Jun 10, 2021Jun 14, 2021 ↗View →
QSI
QUANTUM-SI INC
PURCHASEGRANT
Stock grant
1,250,000$10.00$12.50M1,993,936Jun 10, 2021Jun 14, 2021 ↗View →
QSI
QUANTUM-SI INC
PURCHASEGRANT
Stock grant
348,125$0.00$3482,342,061Jun 10, 2021Jun 14, 2021 ↗View →
QSI
QUANTUM-SI INC
PURCHASEGRANT
Stock grant
1,250,000$10.00$12.50M1,250,000Jun 10, 2021Jun 14, 2021 ↗View →
QSI
QUANTUM-SI INC
PURCHASEGRANT
Stock grant
4,463,619——4,463,619Jun 10, 2021Jun 14, 2021 ↗View →
TXG
10X GENOMICS, INC.
SALE
800,000$80.13$64.10M3,500,000May 13, 2020May 14, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
650,000$80.13$52.08M2,350,000May 13, 2020May 14, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
1,930,198——4,300,000May 12, 2020May 14, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
1,930,198——0May 12, 2020May 14, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
1,500,000——3,153,528May 6, 2020May 7, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
500,000——1,930,198May 6, 2020May 7, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
1,500,000——3,000,000May 6, 2020May 7, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
500,000——2,369,802May 6, 2020May 7, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
1,000,000——1,869,802Apr 23, 2020Apr 24, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
1,000,000——2,430,198Apr 23, 2020Apr 24, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
178,584——178,584Apr 22, 2020Apr 24, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
700,000——869,802Apr 22, 2020Apr 24, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
92,258——327,383Apr 22, 2020Apr 24, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
178,584——0Apr 22, 2020Apr 24, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
1,500,000——4,653,528Apr 14, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
1,500,000——1,500,000Apr 14, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
201,115——0Apr 13, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
788,317——1,569,802Apr 13, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
109,849——235,125Apr 13, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
433,725——0Apr 13, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
201,115——201,115Apr 13, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
21,686——0Apr 13, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
21,686——21,686Apr 13, 2020Apr 15, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
2,170,619——3,430,198Mar 24, 2020Mar 26, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
2,170,619——2,358,119Mar 24, 2020Mar 26, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
125,276——125,276Mar 18, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
241,619——0Mar 18, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
241,619——241,619Mar 18, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
947,079——187,500Mar 18, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
500,000$59.00$29.50M1,134,579Mar 17, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
250,000$59.00$14.75M433,725Mar 17, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
683,725——683,725Mar 4, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
PURCHASE
1,447,079——1,634,579Mar 4, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
1,447,079——5,600,817Mar 4, 2020Mar 18, 2020 ↗View →
TXG
10X GENOMICS, INC.
SALE
683,725——6,153,528Mar 4, 2020Mar 18, 2020 ↗View →
Other insiders · ALMS
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About this filer
CIK 0001581754
ROLE
Director
PRIMARY
ALMS
COMPANIES
4
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001581754DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

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