Simplex Trading’s Seres Therapeutics MCRB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $27.2K | Buy |
3,070
+1,838
| +149% | +$21.5K | ﹤0.01% | 6489 |
|
|
2025
Q4 | $18.3K | Sell |
1,232
-1,575
| -56% | -$27.5K | ﹤0.01% | 6558 |
|
|
2025
Q3 | $54K | Buy |
+2,807
| New | +$44.8K | ﹤0.01% | 6376 |
|
|
2025
Q1 | – | Sell |
-1,238
| Closed | -$19.4K | – | 9191 |
|
|
2024
Q4 | $20K | Buy |
1,238
+1,107
| +845% | +$18K | ﹤0.01% | 6688 |
|
|
2024
Q3 | $2K | Sell |
131
-3,766
| -97% | -$76.4K | ﹤0.01% | 8029 |
|
|
2024
Q2 | $56K | Buy |
3,897
+203
| +5% | +$3.39K | ﹤0.01% | 5967 |
|
|
2024
Q1 | $57K | Buy |
3,694
+1,428
| +63% | +$30.8K | ﹤0.01% | 6144 |
|
|
2023
Q4 | $63K | Sell |
2,266
-944
| -29% | -$24.8K | ﹤0.01% | 5864 |
|
|
2023
Q3 | $152K | Buy |
3,210
+159
| +5% | +$12.1K | ﹤0.01% | 4649 |
|
|
2023
Q2 | $292K | Sell |
3,051
-2,704
| -47% | -$294K | ﹤0.01% | 3883 |
|
|
2023
Q1 | $652K | Buy |
5,755
+5,508
| +2,230% | +$596K | ﹤0.01% | 3011 |
|
|
2022
Q4 | $27K | Buy |
+247
| New | +$33.1K | ﹤0.01% | 6583 |
|
|
2022
Q1 | – | Sell |
-441
| Closed | -$67.8K | – | 11004 |
|
|
2021
Q4 | $73K | Sell |
441
-2,667
| -86% | -$424K | ﹤0.01% | 6717 |
|
|
2021
Q3 | $1.4M | Buy |
3,108
+644
| +26% | +$126K | ﹤0.01% | 2619 |
|
|
2021
Q2 | $1.18M | Buy |
2,464
+832
| +51% | +$351K | ﹤0.01% | 2871 |
|
|
2021
Q1 | $672K | Buy |
1,632
+1,076
| +194% | +$495K | ﹤0.01% | 2929 |
|
|
2020
Q4 | $272K | Sell |
556
-1,285
| -70% | -$753K | ﹤0.01% | 4207 |
|
|
2020
Q3 | $1.04M | Buy |
+1,841
| New | +$612K | ﹤0.01% | 2188 |
|
|
2020
Q1 | – | Sell |
-70
| Closed | -$4.69K | – | 7981 |
|
|
2019
Q4 | $4K | Buy |
+70
| New | +$5.19K | ﹤0.01% | 6780 |
|
|
2019
Q3 | – | Sell |
-455
| Closed | -$30.1K | – | 7619 |
|
|
2019
Q2 | $29K | Buy |
+455
| New | +$43.2K | ﹤0.01% | 5303 |
|
|
2018
Q1 | – | Sell |
-65
| Closed | -$12.5K | – | 6555 |
|
|
2017
Q4 | $13K | Sell |
65
-769
| -92% | -$158K | ﹤0.01% | 3674 |
|
|
2017
Q3 | $267K | Buy |
+834
| New | +$228K | 0.01% | 1017 |
|
|
2016
Q4 | – | Sell |
-219
| Closed | -$47.8K | – | 6243 |
|
|
2016
Q3 | $53K | Buy |
+219
| New | +$76.8K | ﹤0.01% | 2048 |
|
|
2016
Q1 | – | Sell |
-1
| Closed | – | – | 5955 |
|
|
2015
Q4 | $0 | Sell |
1
-7
| -88% | -$4.6K | ﹤0.01% | 5817 |
|
|
2015
Q3 | $4K | Buy |
+8
| New | +$6.53K | ﹤0.01% | 4173 |
|
Other funds holding MCRB
FP
VCM
VFT
Simplex Trading's MCRB Position: Q1 2026 in Review
Simplex Trading increased its Seres Therapeutics (MCRB) stake by 149% in Q1 2026, buying an estimated $21.5K and bringing the position to 3,070 shares worth $27.2K. The position accounts for ﹤0.01% of the portfolio, ranked #6489.
Simplex Trading first reported a position in MCRB in Q3 2015 and has held it in 25 quarters since. The position peaked at $1.4M in Q3 2021. 33 funds tracked by Wall St. Rank hold MCRB as of Q1 2026.
- Simplex Trading held 3,070 shares of Seres Therapeutics worth $27.2K as of Q1 2026.
- Simplex Trading bought 1,838 Seres Therapeutics shares in Q1 2026, an estimated $21.5K.
- Seres Therapeutics made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #6489 holding.
- Simplex Trading first reported a position in Seres Therapeutics in Q3 2015 and has held it in 25 quarters since.
- Simplex Trading's Seres Therapeutics position peaked at $1.4M in Q3 2021.
- 33 funds tracked by Wall St. Rank held Seres Therapeutics as of Q1 2026.
Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.