Latest Period
Q1 2026
Security Snapshot
Repare Therapeutics Inc. - Common shares, no par value (RPTX) Institutional Ownership
CUSIP: 760273102
13F Institutional Holders and Ownership History from Q1 2019 to Q1 2026
Institutions Reporting
0
Shares (Excl. Options)
0
Price
$2.59
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- Security type / class
- Equity / Common shares, no par value
- Symbol
- RPTX
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 0
- Total 13F value
- $0
- Share change
- -25,043,390
- Value change
- -$65,108,559
- Number of holders
- 0
- Shares outstanding
- 42,837,925
- SEC-reported price per share
- $2.59
Latest holder snapshot
4 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- RPTX - Repare Therapeutics Inc. - Common shares, no par value is tracked under CUSIP 760273102.
- 0 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 45 to 0 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $65,418,419 to $0.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 0 institutions filings for Q1 2026.
Security key
760273102
Latest holder period
Q1 2026
13F holders
0
13D/G owners
3
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 760273102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
RPTX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Shay Capital LLC | 6.7% | $7,462,367 | 2,870,141 | Shay Capital LLC | 20 Jan 2026 | |||
| ARK Investment Management LLC | 4.7% | $2,199,996 | 1,999,996 | ARK Investment Management LLC | 31 Dec 2024 | |||
| MPM BioVentures 2014, L.P. | 4.6% | -10% | $2,135,366 | -$228,990 | 1,941,242 | -9.7% | ANSBERT GADICKE | 31 Jan 2025 |
As of 31 Mar 2026, 0 institutional investors reported holding 0 shares of Repare Therapeutics Inc. - Common shares, no par value (RPTX). This represents 0% of the company’s total 42,837,925 outstanding shares.
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
29
Latest
Q1 2026
Rows shown
1-25 of 29
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 0 | $0 | -$65,108,559 | $2.59 | 0 |
| 2025 Q4 | 25,162,567 | $65,418,419 | +$649,419 | $2.60 | 45 |
| 2025 Q3 | 27,272,759 | $47,994,480 | -$585,720 | $1.76 | 44 |
| 2025 Q2 | 27,751,924 | $38,574,670 | -$1,382,414 | $1.39 | 49 |
| 2025 Q1 | 29,510,013 | $29,086,692 | -$1,273,490 | $0.99 | 49 |
| 2024 Q4 | 30,627,189 | $40,115,894 | -$3,245,437 | $1.31 | 53 |
| 2024 Q3 | 32,384,039 | $111,394,012 | -$4,678,067 | $3.44 | 56 |
| 2024 Q2 | 33,787,071 | $111,563,077 | -$7,679,698 | $3.30 | 60 |
| 2024 Q1 | 35,509,240 | $167,234,827 | -$6,368,867 | $4.71 | 70 |
| 2023 Q4 | 36,516,609 | $266,618,743 | +$7,114,924 | $7.30 | 69 |
| 2023 Q3 | 36,251,577 | $437,732,348 | +$5,862,256 | $12.08 | 75 |
| 2023 Q2 | 35,816,579 | $379,155,366 | +$27,699,133 | $10.58 | 77 |
| 2023 Q1 | 33,203,752 | $326,704,500 | -$3,869,255 | $9.84 | 77 |
| 2022 Q4 | 33,439,349 | $491,913,773 | +$9,270,562 | $14.71 | 81 |
| 2022 Q3 | 32,825,390 | $398,104,252 | -$27,705,169 | $12.13 | 68 |
| 2022 Q2 | 33,241,732 | $451,682,656 | +$10,057,776 | $13.99 | 71 |
| 2022 Q1 | 32,606,123 | $464,339,399 | -$15,992,556 | $14.24 | 61 |
| 2021 Q4 | 32,686,703 | $689,483,446 | +$73,866,430 | $21.09 | 65 |
| 2021 Q3 | 26,958,565 | $707,727,594 | +$8,752,319 | $26.24 | 66 |
| 2021 Q2 | 26,541,561 | $828,248,052 | +$17,346,878 | $31.18 | 61 |
| 2021 Q1 | 25,991,734 | $797,739,395 | +$23,245,092 | $30.69 | 64 |
| 2020 Q4 | 27,148,766 | $931,197,865 | +$31,433,436 | $34.30 | 61 |
| 2020 Q3 | 23,874,907 | $734,608,729 | +$25,936,109 | $30.77 | 37 |
| 2020 Q2 | 22,517,975 | $698,109,449 | +$698,106,449 | $31.02 | 47 |
| 2020 Q1 | 100 | $3,000 | $30.00 | 1 |