Jim Simons’s Chemomab Therapeutics CMMB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q3
$12.3K Buy
+10,328
New +$21.2K ﹤0.01% 3143
2022
Q2
– Sell
-6,990
Closed -$134K – 4260
2022
Q1
$134K Buy
+6,990
New +$138K ﹤0.01% 3743
2021
Q2
– Sell
-1,756
Closed -$202K – 3493
2021
Q1
$202K Buy
1,756
+420
+31% +$83.6K ﹤0.01% 3146
2020
Q4
$148K Buy
+1,336
New +$129K ﹤0.01% 3203

Other funds holding CMMB

Jim Simons's CMMB Position: Q3 2026 in Review

Jim Simons opened a new position in Chemomab Therapeutics (CMMB) in Q3 2026: 10,328 shares worth $12.3K. The stake represents ﹤0.01% of the portfolio and ranks #3143 among its holdings. This is a return to the name: Jim Simons previously reported a position in CMMB as recently as Q1 2022.

Jim Simons first reported a position in CMMB in Q4 2020 and has held it in 4 quarters since. The position peaked at $202K in Q1 2021. 13 funds tracked by Wall St. Rank hold CMMB as of Q3 2026.

  • Jim Simons held 10,328 shares of Chemomab Therapeutics worth $12.3K as of Q3 2026.
  • Chemomab Therapeutics was a new Jim Simons position in Q3 2026.
  • Chemomab Therapeutics made up ﹤0.01% of Jim Simons's portfolio in Q3 2026, its #3143 holding.
  • Jim Simons first reported a position in Chemomab Therapeutics in Q4 2020 and has held it in 4 quarters since.
  • Jim Simons's Chemomab Therapeutics position peaked at $202K in Q1 2021.
  • 13 funds tracked by Wall St. Rank held Chemomab Therapeutics as of Q3 2026.

Based on Renaissance Technologies's 13F filing for Q3 2026, filed 12 Nov 2026.