Form4insider filings, from the source

Insider holders · CIK 0001666134

BLACKLINE, INC. · BL

Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity

InsiderDirect sharesIndirect sharesTotal reportedLast report (ET)From
William J.G. GriffithDirector17,1024,701,1764,718,278Mar 19, 2018 · 11:01 am EDTForm 4
ICONIQ Strategic Partners GP, L.P.10% Owner17,0874,701,1764,718,263Mar 19, 2018 · 11:02 am EDTForm 4
ICONIQ Strategic Partners TT GP, Ltd.10% Owner17,0874,701,1764,718,263Mar 19, 2018 · 11:02 am EDTForm 4
Divesh Makan10% Owner17,0874,701,1764,718,263Mar 19, 2018 · 11:02 am EDTForm 4
ICONIQ Strategic Partners Co-Invest, L.P., Series BL210% Owner17,0874,701,1764,718,263Mar 19, 2018 · 11:02 am EDTForm 4
ICONIQ Strategic Partners Co-Invest, L.P., BL Series10% Owner17,0874,701,1764,718,263Mar 19, 2018 · 11:02 am EDTForm 4
ICONIQ Strategic Partners-B, L.P.10% Owner17,0874,701,1764,718,263Mar 19, 2018 · 11:02 am EDTForm 4
ICONIQ Strategic Partners, L.P.10% Owner17,0874,701,1764,718,263Mar 19, 2018 · 11:02 am EDTForm 4
Mario SpanicciatiChief Strategy Officer10,7902,157,1632,167,953Mar 13, 2019 · 4:41 pm EDTForm 4
Therese TuckerDirector381,557250,916632,473Aug 26, 2026 · 5:49 pm EDTForm 4
Owen RyanChief Executive Officer390,911—390,911Aug 24, 2026 · 4:40 pm EDTForm 4
Marc HuffmanChief Operating Officer178,079—178,079Feb 15, 2019 · 4:36 pm ESTForm 4
Karole Morgan-PragerChief Legal and Administrative160,209—160,209Aug 24, 2026 · 4:37 pm EDTForm 4
Thomas UntermanDirector53,801100,000153,801May 25, 2018 · 5:00 pm EDTForm 4/A
Jeremy UngChief Technology Officer134,805—134,805Aug 24, 2026 · 4:43 pm EDTForm 4
Patrick VillanovaChief Financial Officer131,812—131,812Sep 4, 2026 · 4:58 pm EDTForm 4
Jimmy C DuanChief Customer Officer119,907—119,907Aug 24, 2026 · 4:48 pm EDTForm 4
Stuart Van HoutenChief Commercial Officer106,966—106,966Aug 24, 2026 · 4:45 pm EDTForm 4
Ajay Shah10% Owner—67,12567,125Mar 19, 2018 · 4:06 pm EDTForm 4
Michelle D StalickChief Accounting Officer34,712—34,712Aug 28, 2026 · 4:54 pm EDTForm 4
Graham SmithDirector26,994—26,994May 25, 2018 · 5:09 pm EDTForm 4/A
Mark PartinChief Financial Officer24,820—24,820Feb 22, 2019 · 4:29 pm ESTForm 4
Chris MurphyChief Revenue Officer18,872—18,872Jun 27, 2018 · 5:51 pm EDTForm 4
Mika YamamotoDirector16,692—16,692Jun 8, 2026 · 6:08 pm EDTForm 4
Kevin B ThompsonDirector3,606—3,606May 25, 2018 · 5:22 pm EDTForm 4/A
SLTA Sumeru (GP), L.L.C.Director—00Mar 11, 2019 · 5:38 pm EDTForm 4
Silver Lake Technology Associates Sumeru, L.P.Director—00Mar 11, 2019 · 5:38 pm EDTForm 4
Silver Lake Technology Investors Sumeru, L.P.Director—00Mar 11, 2019 · 5:38 pm EDTForm 4
Silver Lake Group, L.L.C.Director—00Mar 11, 2019 · 5:38 pm EDTForm 4
Silver Lake Sumeru Fund LPDirector—00Mar 11, 2019 · 5:38 pm EDTForm 4

Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.