Renaissance Technologies LLC
- SEC CIK
- 0001037389
- Latest filing
- Aug 13, 2026
MRSN holding history
Mersana Therapeutics, Inc. in every 13F filed by Renaissance Technologies LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
MRSN overviewAll 13F holders of MRSNFull Q2 2026 holdings
- Shares (Q4 2025)
- 0
- Sold out in Q4 2025
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 16
- Since Q4 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q4 2025 | 0 | $0 | 0.0% | −88,465−100.0% | Sold out | Holders |
| Q3 2025 | 88,465 | $686.5K | <0.1% | −25,543−22.4% | ReducedConverted for a 1-for-25 split | Holders |
| Q2 2025 | 2,850,194 | $843.7K | <0.1% | +2,010,275+239.3% | Added | Holders |
| Q1 2025 | 839,919 | $289.1K | <0.1% | +233,634+38.5% | Added | Holders |
| Q4 2024 | 606,285 | $867.0K | <0.1% | +113,566+23.0% | Added | Holders |
| Q3 2024 | 492,719 | $931.2K | <0.1% | −955,500−66.0% | Reduced | Holders |
| Q2 2024 | 1,448,219 | $2.91M | <0.1% | +20,400+1.4% | Added | Holders |
| Q1 2024 | 1,427,819 | $6.40M | <0.1% | +562,088+64.9% | Added | Holders |
| Q4 2023 | 865,731 | $2.01M | <0.1% | −60,188−6.5% | Reduced | Holders |
| Q3 2023 | 925,919 | $1.18M | <0.1% | −122,000−11.6% | Reduced | Holders |
| Q2 2023 | 1,047,919 | $3.45M | <0.1% | −202,600−16.2% | Reduced | Holders |
| Q1 2023 | 1,250,519 | $5.14M | <0.1% | +678,800+118.7% | Added | Holders |
| Q4 2022 | 571,719 | $3.35M | <0.1% | −127,100−18.2% | Reduced | Holders |
| Q3 2022 | 698,819 | $4.72M | <0.1% | +128,500+22.5% | Added | Holders |
| Q2 2022 | 570,319 | $2.63M | <0.1% | −348,881−38.0% | Reduced | Holders |
| Q1 2022 | 919,200 | $3.67M | <0.1% | +576,600+168.3% | Added | Holders |
| Q4 2021 | 342,600 | $2.13M | <0.1% | +342,600 | New | Holders |