FilingsForm 4
Canis Major 2025 GRAT and Canis Minor 2025 GRAT sold $1.93 million of CoreWeave Class A shares (Form 4 of Brannin McBee, part 2 of 2)
Value$1.93 million, held indirectly
Shares22,915, held indirectly
Average price$84.44
FiledMar 18
The Canis Major 2025 GRAT sold 16,665 Class A shares and the Canis Minor 2025 GRAT sold 6,250 on Mar 16, 2026, for $1.93 million in all at an average of $84.44 a share. The Form 4, the form an insider files when trading company shares, is that of CoreWeave chief development officer Brannin McBee; a footnote says McBee was the sole trustee and beneficiary of the Canis Major 2025 GRAT, and another says McBee's spouse was the sole beneficiary and trustee of the Canis Minor 2025 GRAT. The form also lists conversions of Class B shares into Class A shares that day, 16,665 for the Canis Major 2025 GRAT and 6,250 for the Canis Minor 2025 GRAT, and states 0 Class A shares held by each GRAT after its last sale line. The sales were made under a Rule 10b5-1 trading plan adopted by McBee on Nov 17, 2025, a footnote says, and the SEC Form 4 was filed on Mar 18, 2026 as part 2 of 2 for McBee.1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
How each figure was checked
- by_holderthe sale lines of this form, by who held the shares: Canis Major 2025 GRAT (held indirectly): 16665 shares for 1407216.7086 USD; Canis Minor 2025 GRAT (held indirectly): 6250 shares for 527756.7696 USD
- first_dateMar 16, 2026
- value$1.93 million
- average_price$84.44
- shares_afterafter the last sale line the form states 0 shares of Class A Common Stock held indirectly (Canis Major 2025 GRAT); 0 shares of Class A Common Stock held indirectly (Canis Minor 2025 GRAT)
- ownerBrannin McBee (filed as McBee Brannin)
- relationshipofficer (Chief Development Officer)
- Footnote F2 of the Form 4 filed Mar 18, 2026 (it is attached to that document's line N1, N2, N3, N4, N5, N6, N7, N8, D1)2025Footnotes of the SEC Form 4 filed 2026-03-18 ↗
- Footnote F10 of the Form 4 filed Mar 18, 2026 (it is attached to that document's line N9, N10, N11, N12, N13, N14, N15, N16, D2)2025Footnotes of the SEC Form 4 filed 2026-03-18 ↗
- other_linesThe form also lists 4 lines for conversion of a derivative security (2 in the table of shares, 2 in the table of derivative securities).
- line N1conversion of a derivative security (code C): 16665 shares acquired on 2026-03-16, no price stated; held indirectly (Canis Major 2025 GRAT); 16665 owned after the line
- line N9conversion of a derivative security (code C): 6250 shares acquired on 2026-03-16, no price stated; held indirectly (Canis Minor 2025 GRAT); 6250 owned after the line
- Footnote F1 of the Form 4 filed Mar 18, 2026 (it is attached to that document's line N1, N9, D1, D2)Footnotes of the SEC Form 4 filed 2026-03-18 ↗
- Footnote F3 of the Form 4 filed Mar 18, 2026 (it is attached to that document's line N2, N3, N4, N5, N6, N7, N8, N10, N11, N12, N13, N14, N15, N16)November 17, 2025Footnotes of the SEC Form 4 filed 2026-03-18 ↗
- filed_onMar 18, 2026
- Remarks of the Form 4 filed Mar 18, 2026 (they speak for the form as a whole, not for a line)2Footnotes of the SEC Form 4 filed 2026-03-18 ↗
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The record
- Issuer
- CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
- Form
- 4
- Accession
- 0001769628-26-000119
- Filed
- Mar 18, 2026
- Period of report
- Mar 16, 2026
- Reporting owner
- Brannin McBee (CIK 2058103, filed as McBee Brannin)
- Relationship
- officer (Chief Development Officer)
- Rule 10b5-1 checkbox
- Ticked
- Line 1
- C (conversion of a derivative security) · 16,665 Class A Common Stock · Mar 16, 2026 · acquired, indirectly, Canis Major 2025 GRAT · 16,665 held after · footnotes F1 and F2
- Line 2
- S (sale) · 3,075 Class A Common Stock at $82.5109 · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 13,590 held after · footnotes F2, F3 and F4
- Line 3
- S (sale) · 4,554 Class A Common Stock at $83.6248 · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 9,036 held after · footnotes F2, F3 and F5
- Line 4
- S (sale) · 2,670 Class A Common Stock at $84.4011 · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 6,366 held after · footnotes F2, F3 and F6
- Line 5
- S (sale) · 3,320 Class A Common Stock at $85.6086 · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 3,046 held after · footnotes F2, F3 and F7
- Line 6
- S (sale) · 2,846 Class A Common Stock at $86.3074 · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 200 held after · footnotes F2, F3 and F8
- Line 7
- S (sale) · 175 Class A Common Stock at $87.2343 · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 25 held after · footnotes F2, F3 and F9
- Line 8
- S (sale) · 25 Class A Common Stock at $88.00 · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 0 held after · footnotes F2 and F3
- Line 9
- C (conversion of a derivative security) · 6,250 Class A Common Stock · Mar 16, 2026 · acquired, indirectly, Canis Minor 2025 GRAT · 6,250 held after · footnotes F1 and F10
- Line 10
- S (sale) · 1,153 Class A Common Stock at $82.5106 · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 5,097 held after · footnotes F3, F4 and F10
- Line 11
- S (sale) · 1,708 Class A Common Stock at $83.6245 · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 3,389 held after · footnotes F3, F5 and F10
- Line 12
- S (sale) · 1,002 Class A Common Stock at $84.4007 · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 2,387 held after · footnotes F3, F6 and F10
- Line 13
- S (sale) · 1,245 Class A Common Stock at $85.6086 · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 1,142 held after · footnotes F3, F7 and F10
- Line 14
- S (sale) · 1,067 Class A Common Stock at $86.3072 · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 75 held after · footnotes F3, F8 and F10
- Line 15
- S (sale) · 66 Class A Common Stock at $87.2335 · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 9 held after · footnotes F3, F9 and F10
- Line 16
- S (sale) · 9 Class A Common Stock at $88.00 · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 0 held after · footnotes F3 and F10
- Derivative line 1
- C (conversion of a derivative security) · 16,665 Class B Common Stock · Mar 16, 2026 · disposed, indirectly, Canis Major 2025 GRAT · 5,633,340 held after · footnotes F1 and F2
- Derivative line 2
- C (conversion of a derivative security) · 6,250 Class B Common Stock · Mar 16, 2026 · disposed, indirectly, Canis Minor 2025 GRAT · 875,000 held after · footnotes F1 and F10
- Footnote F1
- Each share of Class B Common Stock is convertible into one share of the Issuer's Class A Common Stock at any time, at the election of the holder or automatically upon certain transfers, whether or not for value, or upon the occurrence of certain events or conditions described in the Issuer's Amended and Restated Certificate of Incorporation.
- Footnote F2
- The reported securities are directly held by the Canis Major 2025 GRAT, of which the reporting person is the sole trustee and beneficiary.
- Footnote F3
- The reported transaction represents a sale effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 17, 2025.
- Footnote F4
- The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.95 to $82.90, inclusive.
- Footnote F5
- The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.95 to $83.94, inclusive.
- Footnote F6
- The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.95 to $84.91, inclusive.
- Footnote F7
- The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.97 to $85.96, inclusive.
- Footnote F8
- The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.97 to $86.93, inclusive.
- Footnote F9
- The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.97 to $87.49, inclusive.
- Footnote F10
- The reported securities are directly held by the Canis Minor 2025 GRAT, of which the reporting person's spouse is the sole beneficiary and trustee.
- Footnote F11
- The reported securities are directly held by the Canis Major SM Trust (the "Canis Trust"), an irrevocable trust with a third-party trustee, of which the reporting person's minor child is beneficiary. The reporting person has the power to remove and replace the Canis Trust's trustee.
- Footnote F12
- The reported securities are directly held of record by the reporting person's child.
- Footnote F13
- The reported securities are directly held by the Canis Major 2025 Family Trust LLC, of which the reporting person serves as manager.
- Footnote F14
- The reported securities are directly held by the Canis Minor 2025 Family Trust LLC, of which the reporting person serves as manager.
- Remarks
- This Form 4 is Part 2 of 2 for this reporting person. Transactions by the reporting person are continued on this Part 2.
Insider purchases and sales of CoreWeave shares, since Aug 29, 2025
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About CoreWeave
CoreWeave page →Revenue$5.13 billionYear to Dec 31, 2025 · +167.94% year over year
Operating income−$46 millionYear to Dec 31, 2025 · −114.2% year over year
Net income−$1.17 billionYear to Dec 31, 2025 · −35.23% year over year
- Open roles
- 293 open roles · 5 posted this week · 1 job board
- Layoffs, 12 months
- No WARN notices in the US states we read
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