SEC Insider Transactions from MARINER JONATHAN D.

Last updated: 2026-04-02 23:06 UTC | Total transactions: 46

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.

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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%