Jonathan D. Mariner sold OneStream Inc. ($OS) shares on the open market seven times over the last year, totaling about $1.1 million. His most recent sale occurred on January 6, 2026. These sales rank 4,719th among 11,678 individual insiders, below the average of $8.6 million per seller and 6.4 transactions. Mariner made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | D | Stock Option (right to buy) | 50000 | $0.00 | 0.0000 | 242,755,313 | 100.00% | 0.02% |
| April 1, 2026 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | D | Stock Option (right to buy) | 134913 | $0.00 | 0.0000 | 242,755,313 | 100.00% | 0.06% |
| April 1, 2026 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | D | Class A Common Stock | 7130 | $0.00 | 0.0000 | 242,755,313 | 100.00% | 0.00% |
| April 1, 2026 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | D | Common Units | 206949 | $0.00 | 0.0000 | 242,755,313 | 100.00% | 0.09% |
| April 1, 2026 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | D | Common Units | 40051 | $0.00 | 0.0000 | 242,755,313 | 100.00% | 0.02% |
| Jan. 6, 2026 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 5541 | $23.59 | 7,130.0000 | 242,755,313 | 43.73% | 0.00% |
| Jan. 6, 2026 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 2415 | $22.66 | 12,671.0000 | 242,755,313 | 16.01% | 0.00% |
| Dec. 2, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 18423 | $20.90 | 15,086.0000 | 242,755,313 | 54.98% | 0.01% |
| Sept. 3, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 141 | $20.07 | 33,509.0000 | 236,510,211 | 0.42% | 0.00% |
| Aug. 4, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 6630 | $23.53 | 33,650.0000 | 236,510,211 | 16.46% | 0.00% |
| July 7, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 6630 | $26.59 | 40,280.0000 | 236,510,211 | 14.13% | 0.00% |
| June 11, 2025 | Rocket Companies, Inc. | $RKT | MARINER JONATHAN D | Director | A | Class A common stock | 15704 | $13.69 | 85,988.0000 | 141,037,083 | 22.34% | 0.01% |
| June 2, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 6631 | $27.90 | 46,910.0000 | 236,510,211 | 12.38% | 0.00% |
| May 21, 2025 | Five9, Inc. | $FIVN | MARINER JONATHAN D | Director | A | Common Stock | 7840 | $0.00 | 18,175.0000 | 89,275,000 | 75.86% | 0.01% |
| May 21, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | A | Class A Common Stock | 7130 | $0.00 | 53,541.0000 | 236,510,211 | 15.36% | 0.00% |
| March 24, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 46411 | $0.00 | 46,411.0000 | 236,510,211 | 9999.99% | 0.02% |
| March 24, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class A Common Stock | 46411 | $0.00 | 46,411.0000 | 236,510,211 | 9999.99% | 0.02% |
| March 24, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Common Units | 46411 | $0.00 | 247,000.0000 | 236,510,211 | 15.82% | 0.02% |
| March 24, 2025 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 46411 | $0.00 | 0.0000 | 236,510,211 | 100.00% | 0.02% |
| Nov. 27, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 4973 | $31.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class A Common Stock | 787 | $0.00 | 787.0000 | 0 | 9999.99% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Common Units | 787 | $0.00 | 293,411.0000 | 0 | 0.27% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 787 | $0.00 | 787.0000 | 0 | 9999.99% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 787 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 4973 | $0.00 | 4,973.0000 | 0 | 9999.99% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 4973 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Common Units | 4973 | $0.00 | 293,411.0000 | 0 | 1.67% | 0.00% |
| Nov. 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class A Common Stock | 4973 | $0.00 | 4,973.0000 | 0 | 9999.99% | 0.00% |
| Nov. 27, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 787 | $31.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Common Units | 5241 | $0.00 | 299,171.0000 | 0 | 1.72% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 5241 | $0.00 | 5,241.0000 | 0 | 9999.99% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 5241 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 33156 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class D Common Stock | 33156 | $0.00 | 33,156.0000 | 0 | 9999.99% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class A Common Stock | 33156 | $0.00 | 33,156.0000 | 0 | 9999.99% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Class A Common Stock | 5241 | $0.00 | 5,241.0000 | 0 | 9999.99% | 0.00% |
| Nov. 18, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 33156 | $31.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 18, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Class A Common Stock | 5241 | $31.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 14, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | C | Common Units | 33156 | $0.00 | 299,171.0000 | 0 | 9.98% | 0.00% |
| July 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Common Units | 33744 | $18.85 | 291,489.0000 | 0 | 10.38% | 0.00% |
| July 25, 2024 | OneStream, Inc. | $OS | MARINER JONATHAN D | Not found | S | Common Units | 46079 | $18.85 | 291,489.0000 | 0 | 13.65% | 0.00% |
| June 18, 2024 | Rocket Companies, Inc. | $RKT | MARINER JONATHAN D | Director | A | Class A common stock | 15034 | $14.30 | 70,284.0000 | 1,980,523,690 | 27.21% | 0.00% |
| Feb. 9, 2024 | TYSON FOODS, INC. | $TSN | MARINER JONATHAN D | Director | A | Class A Common Stock | 3328 | $52.58 | 14,704.8260 | 284,000,000 | 29.26% | 0.00% |
| May 24, 2023 | Five9, Inc. | $FIVN | MARINER JONATHAN D | Director | A | Common Stock | 3445 | $0.00 | 10,335.0000 | 71,259,000 | 50.00% | 0.00% |
| May 24, 2023 | Five9, Inc. | $FIVN | MARINER JONATHAN D | Director | A | Common Stock | 6890 | $0.00 | 6,890.0000 | 71,259,000 | 9999.99% | 0.01% |
| Feb. 9, 2023 | TYSON FOODS, INC. | $TSN | MARINER JONATHAN D | Director | A | Class A Common Stock | 2886 | $60.64 | 10,973.9720 | 0 | 35.68% | 0.00% |