13F Filings History of STEELHEAD PARTNERS LLC

Latest 13F report
Q4 2025 - 13 Feb 2026
Value $
$1,353,736,039
Signature - Title
Brent Binge - General Counsel and Chief Compliance Officer
Location
Seattle, WA
Summary
This page shows a list of all the recent 13F filings made by STEELHEAD PARTNERS LLC. Form 13F is required to be filed within 45 days of the end of a calendar quarter. STEELHEAD PARTNERS LLC reported 24 stock holdings with total value $1,353,736,039 as of Q4 2025. Top holdings included ON SEMICONDUCTOR CORP, CLOUDFLARE INC, AKAMAI TECHNOLOGIES INC, ALARM COM HLDGS INC, and BLACKLINE INC.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q4 2025 24 $1,353,736,039 +$323,988,195 -$639,809,059 -$315,820,864 ON SEMICONDUCTOR CORP, CLOUDFLARE INC, AKAMAI TECHNOLOGIES INC, ALARM COM HLDGS INC, BLACKLINE INC 13F-HR 12 Feb 2026, 18:15
Q3 2025 30 $1,665,673,587 +$228,752,032 -$546,915,822 -$318,163,790 HALO 0 1/4 03/01/27, ITRI 0 03/15/26, AEIS 2 1/2 09/15/28, UBER 0 12/15/25, BL 1 06/01/29 13F-HR 14 Nov 2025, 14:12
Q2 2025 36 $1,985,534,804 +$480,349,611 -$354,373,018 +$125,976,593 SPOT 0 03/15/26, ITRI 0 03/15/26, LITE 0 1/2 12/15/26, ALNY 1 09/15/27, UBER 0 12/15/25 13F-HR 14 Aug 2025, 16:01
Q1 2025 31 $1,734,543,758 +$292,947,453 -$572,098,262 -$279,150,809 SPOT 0 03/15/26, SEALTD 0 1/4 09/15/26, ITRI 0 03/15/26, NET 0 08/15/26, LITE 0 1/2 12/15/26 13F-HR 15 May 2025, 15:53
Q4 2024 45 $1,987,707,664 +$491,262,319 -$465,324,492 +$25,937,827 SPOT 0 03/15/26, SEALTD 0 1/4 09/15/26, LITE 0 1/2 12/15/26, ITRI 0 03/15/26, LUV 1 1/4 05/01/25 13F-HR 18 Feb 2025, 08:50
Q3 2024 49 $1,943,137,631 +$334,260,553 -$339,952,576 -$5,692,023 SEALTD 0 1/4 09/15/26, SPOT 0 03/15/26, NET 0 08/15/26, ITRI 0 03/15/26, LUV 1 1/4 05/01/25 13F-HR 14 Nov 2024, 16:06
Q2 2024 48 $1,926,081,844 +$429,762,339 -$405,097,454 +$24,664,885 SEA LTD, DEXCOM INC, CLOUDFLARE INC, SPOTIFY USA INC, SAREPTA THERAPEUTICS INC 13F-HR 14 Aug 2024, 15:50
Q1 2024 46 $1,903,850,041 +$463,239,953 -$502,088,836 -$38,848,883 SEALTD 0 1/4 09/15/26, SPOT 0 03/15/26, NET 0 08/15/26, DXCM 0 1/4 11/15/25, SEDG 0 09/15/25 13F-HR 15 May 2024, 16:45
Q4 2023 49 $1,926,922,994 +$529,235,800 -$382,798,242 +$146,437,558 SPOT 0 03/15/26, SEALTD 0 1/4 09/15/26, AXON 0 1/2 12/15/27, NET 0 08/15/26, WGO 1 1/2 04/01/25 13F-HR 14 Feb 2024, 16:31
Q3 2023 49 $1,706,841,975 +$296,306,929 -$140,918,118 +$155,388,811 SPOT 0 03/15/26, SEALTD 0 1/4 09/15/26, WGO 1 1/2 04/01/25, ZS 01/8 07/01/25, IONS 0 04/01/26 13F-HR 14 Nov 2023, 16:22
Q2 2023 46 $1,578,066,814 +$342,132,351 -$330,366,677 +$11,765,674 SPOT 0 03/15/26, SEALTD 0 1/4 09/15/26, WGO 1 1/2 04/01/25, DOCU 0 01/15/24, ZS 01/8 07/01/25 13F-HR 14 Aug 2023, 16:21
Q1 2023 49 $1,535,929,242 +$330,537,882 -$199,572,473 +$130,965,409 SPOT 0 03/15/26, OKTA 0 3/8 06/15/26, DOCU 0 01/15/24, BILL 0 12/01/25, ALRM 0 01/15/26 13F-HR 15 May 2023, 16:08
Q4 2022 41 $1,373,117,338 +$464,229,365 -$438,949,524 +$25,279,841 SPOT 0 03/15/26, ALRM 0 01/15/26, NVCR 0 11/01/25, JAZZ 2 06/15/26, DOCU 0 01/15/24 13F-HR 14 Feb 2023, 16:49
Q3 2022 42 $1,351,012,000 +$459,416,484 -$280,554,506 +$178,861,978 SPOT 0 03/15/26, ZS 01/8 07/01/25, ZEN 0 5/8 06/15/25, NET 0 08/15/26, VRNS 1 1/4 08/15/25 13F-HR 14 Nov 2022, 15:58
Q2 2022 40 $1,165,716,000 +$348,124,415 -$500,359,712 -$152,235,297 SPOTIFY USA INC, OKTA INC, DOCUSIGN INC, CYBERARK SOFTWARE LTD, ZSCALER INC 13F-HR 15 Aug 2022, 18:22
Q1 2022 41 $1,454,866,000 +$395,788,638 -$212,066,185 +$183,722,453 OKTA INC, CYBERARK SOFTWARE LTD, ZENDESK INC, TWITTER INC, SPOTIFY USA INC 13F-HR 16 May 2022, 16:01
Q4 2021 39 $1,351,316,000 +$218,403,876 -$209,009,070 +$9,394,806 OKTA INC, MANDIANT INC, INTERDIGITAL INC, TWITTER INC, CYBERARK SOFTWARE LTD 13F-HR 14 Feb 2022, 16:17
Q3 2021 40 $1,332,441,000 +$334,488,050 -$543,394,588 -$208,906,538 OKTA INC, CYBERARK SOFTWARE LTD, FIREEYE INC, SPLUNK INC, ZSCALER INC 13F-HR 06 Oct 2021, 17:37
Q2 2021 43 $1,512,198,000 +$324,147,649 -$198,073,897 +$126,073,752 OKTA INC, PALO ALTO NETWORKS INC, SPLUNK INC, PALO ALTO NETWORKS INC, HERCULES CAPITAL INC 13F-HR 11 Aug 2021, 16:07
Q1 2021 39 $1,322,165,000 +$403,589,820 -$513,567,317 -$109,977,497 OKTA INC, SPLUNK INC, PALO ALTO NETWORKS INC, MONGODB INC, HERCULES CAPITAL INC 13F-HR 12 May 2021, 17:10
Q4 2020 42 $1,485,682,000 +$427,914,011 -$239,875,741 +$188,038,270 OKTA INC, BLACKLINE INC, PINDUODUO INC, INTERDIGITAL INC, CYBERARK SOFTWARE LTD 13F-HR 16 Feb 2021, 10:23
Q3 2020 42 $1,171,571,000 +$471,232,469 -$151,205,737 +$320,026,732 OKTA INC, BLACKLINE INC, INTERDIGITAL INC, LIGAND PHARMACEUTICALS INC, ALTERYX INC 13F-HR 16 Nov 2020, 16:40
Q2 2020 40 $814,494,000 +$160,949,504 -$438,220,174 -$277,270,670 WORKDAY INC, LIGAND PHARMACEUTICALS INC, TWITTER INC, HERCULES CAPITAL INC, WEIBO CORP 13F-HR 14 Aug 2020, 16:05
Q1 2020 44 $1,017,695,000 +$242,322,810 -$270,573,563 -$28,250,753 INPHI CORP, DEXCOM INC, WORKDAY INC, INPHI CORP, LIGAND PHARMACEUTICALS INC 13F-HR 15 May 2020, 17:17
Q4 2019 47 $1,134,582,000 +$300,500,846 -$300,704,747 -$203,901 TWITTER INC, TESLA INC, LIGAND PHARMACEUTICALS INC, DEXCOM INC, INPHI CORP 13F-HR 14 Feb 2020, 16:27
Q3 2019 47 $1,095,564,000 +$194,432,508 -$347,182,111 -$152,749,603 TWITTER INC, ISIS PHARMACEUTICALS INC DEL, LIGAND PHARMACEUTICALS INC, GOLDMAN SACHS BDC INC, TPG SPECIALTY LENDING INC 13F-HR 14 Nov 2019, 17:03
Q2 2019 48 $1,278,779,000 +$441,687,823 -$241,329,557 +$200,358,266 SEA LTD, ISIS PHARMACEUTICALS INC DEL, ZILLOW GROUP INC, SAREPTA THERAPEUTICS INC, TPG SPECIALTY LENDING INC 13F-HR 07 Aug 2019, 16:34
Q1 2019 44 $1,057,926,000 +$215,247,024 -$222,321,301 -$7,074,277 TWITTER INC, ISIS PHARMACEUTICALS INC DEL, ZILLOW GROUP INC, TPG SPECIALTY LENDING INC, SAREPTA THERAPEUTICS INC 13F-HR 15 May 2019, 16:02
Q4 2018 49 $1,025,674,000 +$178,242,482 -$162,353,338 +$15,889,144 TWITTER INC, ISIS PHARMACEUTICALS INC DEL, TPG SPECIALTY LENDING INC, INTERDIGITAL INC, ZILLOW GROUP INC 13F-HR 14 Feb 2019, 16:11
Q3 2018 49 $1,080,044,000 +$180,838,581 -$263,789,557 -$82,950,976 TWITTER INC, AMAG PHARMACEUTICALS INC, QUIDEL CORP, INTERDIGITAL INC, ISIS PHARMACEUTICALS INC DEL 13F-HR 14 Nov 2018, 16:35
Q2 2018 53 $1,141,525,000 +$131,268,881 -$209,960,863 -$78,691,982 TWITTER INC, AMERICAN RLTY CAP PPTYS INC, AMAG PHARMACEUTICALS INC, INTERDIGITAL INC, CIENA CORP 13F-HR 14 Aug 2018, 16:29
Q1 2018 55 $1,215,536,000 +$219,720,194 -$167,742,240 +$51,977,954 TWITTER INC, PALO ALTO NETWORKS INC, AMERICAN RLTY CAP PPTYS INC, CIENA CORP, INTERDIGITAL INC 13F-HR 15 May 2018, 16:56
Q4 2017 59 $1,166,032,000 +$222,709,021 -$151,541,606 +$71,167,415 TWITTER INC, PALO ALTO NETWORKS INC, SERVICENOW INC, AMERICAN RLTY CAP PPTYS INC, INPHI CORP 13F-HR 14 Feb 2018, 17:11
Q3 2017 59 $1,084,858,000 +$156,746,644 -$198,804,044 -$42,057,400 PALO ALTO NETWORKS INC, TWITTER INC, AMERICAN RLTY CAP PPTYS INC, SERVICENOW INC, INPHI CORP 13F-HR 14 Nov 2017, 16:12
Q2 2017 59 $1,112,730,000 +$172,968,711 -$205,402,942 -$32,434,231 AMERICAN RLTY CAP PPTYS INC, PALO ALTO NETWORKS INC, GSAT, SERVICENOW INC, INPHI CORP 13F-HR 14 Aug 2017, 16:34
Q1 2017 56 $1,123,319,000 +$205,100,039 -$136,143,378 +$68,956,661 AMERICAN RLTY CAP PPTYS INC, INPHI CORP, PALO ALTO NETWORKS INC, TPG SPECIALTY LENDING INC, MERCADOLIBRE INC 13F-HR 15 May 2017, 16:24
Q4 2016 59 $1,025,767,000 +$186,142,448 -$188,457,178 -$2,314,730 AMERICAN RLTY CAP PPTYS INC, PALO ALTO NETWORKS INC, INPHI CORP, INFINERA CORPORATION, SERVICENOW INC 13F-HR 14 Feb 2017, 16:37
Q3 2016 58 $1,026,636,000 +$136,999,866 -$119,996,193 +$17,003,673 AMERICAN RLTY CAP PPTYS INC, PALO ALTO NETWORKS INC, SERVICENOW INC, INFINERA CORPORATION, MERCADOLIBRE INC 13F-HR 14 Nov 2016, 16:31
Q2 2016 55 $970,611,000 +$112,289,959 -$153,351,185 -$41,061,226 AMERICAN RLTY CAP PPTYS INC, INFINERA CORPORATION, SERVICENOW INC, PALO ALTO NETWORKS INC, TWITTER INC 13F-HR 15 Aug 2016, 16:24
Q1 2016 54 $1,024,024,000 +$230,895,060 -$218,509,604 +$12,385,456 INFINERA CORPORATION, PALO ALTO NETWORKS INC, AMERICAN RLTY CAP PPTYS INC, LINKEDIN CORP, GSAT 13F-HR 16 May 2016, 11:12
Q4 2015 57 $1,038,774,000 +$185,535,098 -$97,493,290 +$88,041,808 INFINERA CORPORATION, PALO ALTO NETWORKS INC, AMERICAN RLTY CAP PPTYS INC, LINKEDIN CORP, SERVICENOW INC 13F-HR 12 Feb 2016, 17:01
Q3 2015 51 $943,602,000 +$187,996,533 -$162,303,645 +$25,692,888 INFINERA CORPORATION, PALO ALTO NETWORKS INC, RFP, AMERICAN RLTY CAP PPTYS INC, GSAT 13F-HR 16 Nov 2015, 17:05
Q2 2015 52 $1,004,266,000 +$170,243,567 -$277,422,862 -$107,179,295 RFP, INFINERA CORPORATION, GSAT, LVLT, WEBMD HEALTH CORP 13F-HR 14 Aug 2015, 11:59
Q1 2015 45 $1,248,289,000 +$143,380,293 -$253,172,558 -$109,792,265 RFP, GSAT, INFINERA CORPORATION, LVLT, AMAG PHARMACEUTICALS INC 13F-HR 15 May 2015, 16:30
Q4 2014 50 $1,317,170,000 +$321,595,133 -$174,774,083 +$146,821,050 RFP, GSAT, LVLT, INFINERA CORPORATION, AMAG PHARMACEUTICALS INC 13F-HR 17 Feb 2015, 08:53
Q3 2014 61 $1,164,861,000 +$196,390,133 -$232,323,672 -$35,933,539 RFP, GSAT, LVLT, INFINERA CORPORATION, AMAG PHARMACEUTICALS INC 13F-HR 14 Nov 2014, 16:03
Q2 2014 62 $1,268,242,000 +$347,600,973 -$211,541,325 +$136,059,648 RFP, GSAT, LVLT, MICRON TECHNOLOGY INC, ANRZQ 13F-HR 14 Aug 2014, 16:13
Q1 2014 61 $1,154,234,000 +$214,815,123 -$144,932,388 +$69,882,735 RFP, LVLT, ANRZQ, MICRON TECHNOLOGY INC, APOLLO INVT CORP 13F-HR 14 May 2014, 17:48
Q4 2013 55 $1,059,832,000 $0 $0 $0 RFP, LVLT, ANRZQ, L-3 COMMUNICATIONS CORP, INTERDIGITAL INC 13F-HR 14 Feb 2014, 16:19