Latest Period
Q1 2026
Security Snapshot
Onterris, Inc. - Common Stock, par value $0.000004 share (ONT) Institutional Ownership
CUSIP: 615111101
13F Institutional Holders and Ownership History from Q3 2020 to Q1 2026
Institutions Reporting
170
Shares (Excl. Options)
33,856,050
Price
$21.89
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- Security type / class
- Equity / Common Stock, par value $0.000004 share
- Symbol
- ONT on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 33,856,050
- Total 13F value
- $744,171,914
- Portfolio coverage rank
- 0%
- Share change
- +918,463
- Value change
- +$17,978,764
- Number of holders
- 170
- Shares outstanding
- 36,526,140
- SEC-reported price per share
- $15.53
- Insider filing price
- $15.53
Latest holder snapshot
5 signals
Issuer context
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ONT - Onterris, Inc. - Common Stock, par value $0.000004 share is tracked under CUSIP 615111101.
- 170 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 184 to 170 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $805,038,856 to $744,171,914.
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 170 institutions filings for Q1 2026.
Security key
615111101
Latest holder period
Q1 2026
13F holders
170
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
ONT full holder history
Onterris, Inc. SEC filings
Onterris, Inc. company facts
Onterris, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 615111101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
ONT
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BAMCO INC /NY/ | 6.1% | -21% | $59,326,314 | -$14,697,114 | 2,160,463 | -20% | Baron Capital Group, Inc. | 30 Sep 2025 |
| GOLDMAN SACHS ASSET MANAGEMENT, L.P. | 5% | $39,977,860 | 1,826,307 | Goldman Sachs Asset Management, L.P. | 31 Mar 2026 | |||
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 3.7% | -44% | $36,110,394 | -$27,532,549 | 1,315,018 | -43% | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 30 Sep 2025 |
| ALGER ASSOCIATES INC | 3% | $15,502,470 | 1,013,896 | Alger Associates, Inc. | 31 Dec 2024 | |||
| MANAGED ACCOUNT ADVISORS LLC | 2.7% | -50% | $22,645,696 | -$19,773,845 | 957,130 | -47% | MANAGED ACCOUNT ADVISORS, LLC | 30 Jun 2025 |
As of 31 Mar 2026, 170 institutional investors reported holding 33,856,050 shares of Onterris, Inc. - Common Stock, par value $0.000004 share (ONT). This represents 93% of the company’s total 36,526,140 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
70%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.6% | 3,150,760 | -2.8% | 0% | $68,970,137 |
| BAMCO INC /NY/ | 5.9% | 2,168,183 | +0.35% | 0.14% | $47,461,526 |
| GOLDMAN SACHS GROUP INC | 5.4% | 1,960,610 | +13% | 0.01% | $42,917,753 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 4.2% | 1,531,641 | -7.4% | 0.06% | $33,528,000 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 4.1% | 1,515,671 | +4% | 0.01% | $33,178,040 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9% | 1,436,165 | 0% | 0% | $31,437,652 |
| PRINCIPAL FINANCIAL GROUP INC | 3.7% | 1,346,257 | +5.2% | 0.02% | $29,469,566 |
| ALLIANCEBERNSTEIN L.P. | 3.1% | 1,130,913 | +27% | 0.01% | $28,080,570 |
| ROYCE & ASSOCIATES LP | 2.6% | 954,776 | +21% | 0.21% | $20,900,047 |
| Amundi | 2.4% | 880,032 | 0.01% | $19,233,210 | |
| JANUS HENDERSON GROUP PLC | 2.4% | 867,042 | +14% | 0.01% | $18,979,041 |
| DIMENSIONAL FUND ADVISORS LP | 2.4% | 858,856 | +23% | 0% | $18,797,474 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2% | 803,732 | +3.7% | 0% | $17,596,946 |
| TRUIST FINANCIAL CORP | 2.2% | 795,313 | -1.1% | 0.02% | $17,409,402 |
| Legal & General Group Plc | 2.1% | 753,684 | +18% | 0% | $16,498,145 |
| STATE STREET CORP | 2% | 728,450 | +0.37% | 0% | $15,945,771 |
| Stephens Investment Management Group LLC | 1.9% | 694,980 | -1.4% | 0.21% | $15,213,112 |
| ALGERT GLOBAL LLC | 1.6% | 599,025 | +5.7% | 0.2% | $13,113,000 |
| FMR LLC | 1.6% | 568,373 | +26% | 0% | $12,441,686 |
| Summit Creek Advisors LLC | 1.4% | 511,160 | -19% | 2.3% | $11,189,292 |
| MORGAN STANLEY | 1.4% | 508,808 | -9.1% | 0% | $11,137,818 |
| DekaBank Deutsche Girozentrale | 1.4% | 505,697 | 0% | 0.02% | $10,999,000 |
| Avalon Trust Co | 1.2% | 436,494 | +2.1% | 0.66% | $9,554,854 |
| Allspring Global Investments Holdings, LLC | 1.1% | 393,908 | -3.5% | 0.01% | $8,622,646 |
| FRED ALGER MANAGEMENT, LLC | 1.1% | 387,994 | -64% | 0.04% | $8,493,189 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
23
Latest
Q1 2026
Rows shown
1-23 of 23
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 33,856,050 | $744,171,914 | +$17,978,764 | $21.89 | 170 |
| 2025 Q4 | 32,419,446 | $805,038,856 | -$40,358,972 | $24.83 | 184 |
| 2025 Q3 | 32,482,374 | $891,955,275 | -$42,853,644 | $27.46 | 183 |
| 2025 Q2 | 34,086,605 | $745,973,525 | +$2,298,254 | $21.89 | 156 |
| 2025 Q1 | 34,260,470 | $488,645,404 | -$1,543,592 | $14.26 | 161 |
| 2024 Q4 | 33,684,566 | $624,152,195 | -$15,982,563 | $18.55 | 162 |
| 2024 Q3 | 33,241,518 | $874,533,856 | -$64,374,860 | $26.30 | 177 |
| 2024 Q2 | 32,671,560 | $1,456,250,748 | +$271,850,943 | $44.56 | 170 |
| 2024 Q1 | 26,664,852 | $1,043,741,328 | +$14,905,585 | $39.17 | 164 |
| 2023 Q4 | 26,326,387 | $845,820,682 | -$7,103,734 | $32.13 | 156 |
| 2023 Q3 | 26,593,444 | $777,859,894 | -$20,210,613 | $29.26 | 150 |
| 2023 Q2 | 27,101,551 | $1,126,694,290 | -$21,677,142 | $42.12 | 140 |
| 2023 Q1 | 27,825,100 | $991,905,571 | -$747,187 | $35.67 | 126 |
| 2022 Q4 | 27,600,410 | $1,224,695,916 | +$15,663,282 | $44.39 | 130 |
| 2022 Q3 | 27,014,397 | $909,272,726 | +$10,775,907 | $33.65 | 123 |
| 2022 Q2 | 26,664,744 | $900,190,138 | +$11,428,213 | $33.76 | 125 |
| 2022 Q1 | 26,215,670 | $1,387,348,574 | +$27,887,612 | $52.93 | 137 |
| 2021 Q4 | 25,495,607 | $1,797,652,113 | +$95,748,782 | $70.51 | 140 |
| 2021 Q3 | 24,348,237 | $1,503,149,151 | +$349,353,957 | $61.74 | 142 |
| 2021 Q2 | 18,735,655 | $1,004,921,606 | +$47,902,761 | $53.66 | 120 |
| 2021 Q1 | 17,732,408 | $889,566,728 | +$104,436,630 | $50.19 | 109 |
| 2020 Q4 | 15,956,764 | $494,079,206 | +$63,824,843 | $30.96 | 98 |
| 2020 Q3 | 14,954,968 | $356,262,393 | +$356,262,392 | $23.82 | 70 |