United States Software & IT Services

OneStream Inc (OS)

Track

Ticker: OS Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Planned sale 17 Mar 2026
Value US$3,267,952.36 | Price 259.57 | Shares 9,810 (+22.0%)
Proposed sale 17 Mar 2026
Value US$1,695,309.54 | Price 497.01 | Shares 45,464
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-03-18 2026-03-17 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
9,810 +22.0%
259.57
US$3,267,952 		9,810 +22.0% 259.57 US$3,267,952
2026-03-17 2026-03-17 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
45,464
497.01
US$1,695,310 		45,464 497.01 US$1,695,310
2026-03-18 2026-03-16 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
37,565 -16.6%
283.47
US$4,471,462 		37,565 -16.6% 283.47 US$4,471,462
2026-03-16 2026-03-16 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
49,204
23.58
US$1,160,230 		49,204 23.58 US$1,160,230
2026-03-12 2026-03-11 PlS Planned sale
Leshinski Scott

President

Officer
7,412 -2.6%
23.68
US$175,516 		7,412 -2.6% 23.68 US$175,516
2026-03-12 2026-03-11 PlS Planned sale
McIntyre Pamela

Chief Accounting Officer

Officer
2,015 -3.5%
23.68
US$47,715 		2,015 -3.5% 23.68 US$47,715
2026-03-11 2026-03-11 PrS Proposed sale
Leshinski Scott

Officer

Officer
7,412
23.68
US$175,516 		7,412 23.68 US$175,516
2026-02-19 2026-02-17 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
60,000 -5.7%
23.46
US$1,407,600 		60,000 -5.7% 23.46 US$1,407,600
2026-02-17 2026-02-17 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
60,000
23.46
US$1,407,600 		60,000 23.46 US$1,407,600
2026-01-20 2026-01-16 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
120,000 -10.8%
23.63
US$2,835,600 		120,000 -10.8% 23.63 US$2,835,600
2026-01-16 2026-01-16 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
120,000
23.65
US$2,838,000 		120,000 23.65 US$2,838,000
2026-01-09 2026-01-08 PlS Planned sale
McIntyre Pamela

Chief Accounting Officer

Officer
6,505 -10.0%
23.58
US$153,388 		6,505 -10.0% 23.58 US$153,388
2026-01-08 2026-01-06 PlS Planned sale
3.7
MARINER JONATHAN D
Non-Executive Director
5,541 -43.7%
23.59
US$130,712 		5,541 -43.7% 23.59 US$130,712
2026-01-08 2026-01-06 PlS Planned sale
3.7
MARINER JONATHAN D
Non-Executive Director
2,415 -16.0%
22.66
US$54,724 		2,415 -16.0% 22.66 US$54,724
2026-01-06 2026-01-06 PrS Proposed sale
3.7
Jonathan Mariner

Director

Non-Executive Director
7,956
23.61
US$187,841 		7,956 23.61 US$187,841
2025-12-18 2025-12-16 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
40,000 -3.9%
17.21
US$688,400 		40,000 -3.9% 17.21 US$688,400
2025-12-16 2025-12-16 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
40,000
17.21
US$688,346 		40,000 17.21 US$688,346
2025-12-16 2025-12-15 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
9,571 -4.4%
17.73
US$169,694 		9,571 -4.4% 17.73 US$169,694
2025-12-15 2025-12-15 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
9,571
17.73
US$169,694 		9,571 17.73 US$169,694
2025-12-04 2025-12-02 PlS Planned sale
3.7
MARINER JONATHAN D
Non-Executive Director
18,423 -55.0%
20.90
US$385,041 		18,423 -55.0% 20.90 US$385,041
2025-11-19 2025-11-17 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
40,000 -3.9%
20.94
US$837,600 		40,000 -3.9% 20.94 US$837,600
2025-11-17 2025-11-17 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
40,000
21.50
US$860,000 		40,000 21.50 US$860,000
2025-10-17 2025-10-16 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
490 -0.0%
17.59
US$8,619 		490 -0.0% 17.59 US$8,619
2025-10-17 2025-10-16 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
39,510 -3.8%
16.84
US$665,348 		39,510 -3.8% 16.84 US$665,348
2025-10-16 2025-10-16 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
40,000
16.85
US$673,850 		40,000 16.85 US$673,850
2025-09-22 2025-09-19 PlS Planned sale
Kinzer John
Non-Executive Director
30,000 -100.0%
20.00
US$600,000 		30,000 -100.0% 20.00 US$600,000
2025-09-19 2025-09-19 PrS Proposed sale
Kinzer John

Director

Non-Executive Director
30,000
20.00
US$600,000 		30,000 20.00 US$600,000
2025-09-18 2025-09-16 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
40,000 -3.9%
18.69
US$747,600 		40,000 -3.9% 18.69 US$747,600
2025-09-16 2025-09-16 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
40,000
18.50
US$740,000 		40,000 18.50 US$740,000
2025-09-16 2025-09-15 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
8,943 -3.9%
19.03
US$170,185 		8,943 -3.9% 19.03 US$170,185
2025-09-15 2025-09-15 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
8,943
19.03
US$170,185 		8,943 19.03 US$170,185
2025-09-04 2025-09-03 PlS Planned sale
3.7
MARINER JONATHAN D
Non-Executive Director
141 -0.4%
20.07
US$2,830 		141 -0.4% 20.07 US$2,830
2025-09-03 2025-09-03 PrS Proposed sale
3.7
Jonathan Mariner

Director

Non-Executive Director
18,564
19.96
US$370,537 		18,564 19.96 US$370,537
2025-08-20 2025-08-18 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
20,000 -2.0%
21.56
US$431,200 		20,000 -2.0% 21.56 US$431,200
2025-08-18 2025-08-18 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
20,000
21.56
US$431,200 		20,000 21.56 US$431,200
2025-08-06 2025-08-04 PlS Planned sale
3.7
MARINER JONATHAN D
Non-Executive Director
6,630 -16.5%
23.53
US$156,004 		6,630 -16.5% 23.53 US$156,004
2025-07-28 2025-07-25 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
25,000 -9.5%
25.00
US$625,000 		25,000 -9.5% 25.00 US$625,000
2025-07-25 2025-07-25 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
25,000
25.00
US$625,000 		25,000 25.00 US$625,000
2025-07-21 2025-07-18 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
20,000 -2.0%
25.12
US$502,400 		20,000 -2.0% 25.12 US$502,400
2025-07-18 2025-07-18 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
20,000
25.12
US$502,400 		20,000 25.12 US$502,400
2025-07-09 2025-07-07 PlS Planned sale
3.7
MARINER JONATHAN D
Non-Executive Director
6,630 -14.1%
26.59
US$176,292 		6,630 -14.1% 26.59 US$176,292
2025-06-27 2025-06-25 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
25,000 -9.5%
26.77
US$669,250 		25,000 -9.5% 26.77 US$669,250
2025-06-25 2025-06-25 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
25,000
26.77
US$669,250 		25,000 26.77 US$669,250
2025-06-24 2025-06-20 PlS Planned sale
Kinzer John
Non-Executive Director
1,100 -100.0%
28.81
US$31,691 		1,100 -100.0% 28.81 US$31,691
2025-06-24 2025-06-20 PlS Planned sale
Kinzer John
Non-Executive Director
28,900 -96.3%
28.24
US$816,136 		28,900 -96.3% 28.24 US$816,136
2025-06-20 2025-06-20 PrS Proposed sale
Kinzer John

Director

Non-Executive Director
30,000
28.26
US$847,932 		30,000 28.26 US$847,932
2025-06-23 2025-06-18 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
20,000 -2.0%
28.28
US$565,600 		20,000 -2.0% 28.28 US$565,600
2025-06-18 2025-06-18 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
20,000
28.28
US$565,600 		20,000 28.28 US$565,600
2025-06-18 2025-06-16 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
9,354 -3.8%
27.90
US$260,977 		9,354 -3.8% 27.90 US$260,977
2025-06-16 2025-06-16 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
9,354
27.90
US$260,977 		9,354 27.90 US$260,977
2025-06-12 2025-06-11 S Sale
3.2
Koefoed William A

Chief Financial Officer

Officer
6,501 -2.6%
28.23
US$183,523 		6,501 -2.6% 28.23 US$183,523
2025-06-12 2025-06-11 S Sale
3.2
Colby Craig
6,279 -2.9%
28.23
US$177,256 		6,279 -2.9% 28.23 US$177,256
2025-06-12 2025-06-11 S Sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
6,280 -0.6%
28.23
US$177,284 		6,280 -0.6% 28.23 US$177,284
2025-06-12 2025-06-11 S Sale
3.2
Shea Thomas Anthony

CEO and President

Executive Director Large shareholder
9,913 -2.0%
28.23
US$279,844 		9,913 -2.0% 28.23 US$279,844
2025-06-11 2025-06-11 PrS Proposed sale
3.2
Colby Craig

Officer

Officer
6,279
28.23
US$177,234 		6,279 28.23 US$177,234
2025-06-11 2025-06-11 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
6,280
28.23
US$177,262 		6,280 28.23 US$177,262
2025-06-11 2025-06-11 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
6,501
28.23
US$183,500 		6,501 28.23 US$183,500
2025-06-11 2025-06-11 PrS Proposed sale
3.2
Shea Thomas Anthony

Officer; Director

Executive Director
9,913
28.23
US$279,808 		9,913 28.23 US$279,808
2025-06-11 2025-06-11 PrS Proposed sale
Powers Robert Allan Jr.

Officer

Officer
634
28.23
US$17,896 		634 28.23 US$17,896
2025-06-04 2025-06-02 PlS Planned sale
3.7
MARINER JONATHAN D
Non-Executive Director
6,631 -12.4%
27.90
US$185,005 		6,631 -12.4% 27.90 US$185,005
2025-06-02 2025-06-02 PrS Proposed sale
3.7
Jonathan Mariner

Director

Non-Executive Director
19,891
28.06
US$558,141 		19,891 28.06 US$558,141
2025-05-29 2025-05-27 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
25,000 -9.0%
28.76
US$719,000 		25,000 -9.0% 28.76 US$719,000
2025-05-27 2025-05-27 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
25,000
28.76
US$719,000 		25,000 28.76 US$719,000
2025-05-21 2025-05-19 PlS Planned sale
3.2
Hohenstein Ken

Chief Revenue Officer

Officer
20,000 -1.9%
27.67
US$553,400 		20,000 -1.9% 27.67 US$553,400
2025-05-19 2025-05-19 PrS Proposed sale
3.2
Hohenstein Ken

Officer

Officer
20,000
27.67
US$553,400 		20,000 27.67 US$553,400
2025-05-13 2025-05-09 PlS Planned sale
3.2
Colby Craig
Large shareholder
40,960 -15.7%
26.11
US$1,069,466 		40,960 -15.7% 26.11 US$1,069,466
2025-05-13 2025-05-09 PlS Planned sale
3.2
Colby Craig
Large shareholder
239,040 -47.9%
25.39
US$6,069,226 		239,040 -47.9% 25.39 US$6,069,226
2025-05-09 2025-05-09 PrS Proposed sale
3.2
Colby Craig

Officer

Officer
280,000
25.49
US$7,138,546 		280,000 25.49 US$7,138,546
2025-04-10 2025-04-09 PlS Planned sale
Kinzer John
Non-Executive Director
40,000 -100.0%
20.28
US$811,200 		40,000 -100.0% 20.28 US$811,200
2025-04-09 2025-04-09 PrS Proposed sale
Kinzer John

Director

Non-Executive Director
40,000
20.28
US$811,047 		40,000 20.28 US$811,047
2025-02-20 2025-02-18 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
10,000 -100.0%
25.04
US$250,400 		10,000 -100.0% 25.04 US$250,400
2025-02-18 2025-02-18 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
10,000
25.04
US$250,400 		10,000 25.04 US$250,400
2025-01-17 2025-01-15 PlS Planned sale
3.2
Koefoed William A

Chief Financial Officer

Officer
10,000 -100.0%
26.57
US$265,700 		10,000 -100.0% 26.57 US$265,700
2025-01-15 2025-01-15 PrS Proposed sale
3.2
Koefoed William A

Officer

Officer
10,000
26.57
US$265,700 		10,000 26.57 US$265,700
2024-12-17 2024-12-13 PlS Planned sale
3.2
Colby Craig

President

Officer Large shareholder
71,806 -100.0%
30.40
US$2,182,902 		71,806 -100.0% 30.40 US$2,182,902
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