On this page, we present all of the funds holding SPIR from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding SPIR, with a link to that fund's top holdings. The next columns indicate the amount of SPIR stock held by each of the funds holding SPIR, followed by the SPIR position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 52 funds holding SPIR within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Deer Management Co. LLC. For more details on the positions held by Deer Management Co. LLC (or by any of the other funds holding SPIR), click the fund name in the "Holder" column of the funds-holding-SPIR table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Deer Management Co. LLC	909,742	$7,114	12/31/2023
SPIR	909,742	$7,114	12/31/2023
Vanguard Group Inc.	624,296	$4,882	12/31/2023
SPIR	624,296	$4,882	12/31/2023
Lane Generational LLC	423,018	$3,308	12/31/2023
SPIR	423,018	$3,308	12/31/2023
Francisco Partners Management LP	308,561	$2,413	12/31/2023
SPIR	308,561	$2,413	12/31/2023
Group One Trading L.P.		$1,771	12/31/2023
Call	227,900	$1,782	12/31/2023
Put	1,400	$11	12/31/2023
Geode Capital Management LLC	160,776	$1,258	12/31/2023
SPIR	160,776	$1,258	12/31/2023
Baillie Gifford & Co.	108,255	$847	12/31/2023
SPIR	108,255	$847	12/31/2023
Susquehanna International Group LLP		$817	12/31/2023
Call	85,700	$670	12/31/2023
SPIR	66,185	$518	12/31/2023
Put	47,500	$371	12/31/2023
DNB Asset Management AS	48,608	$583	03/31/2024
SPIR	48,608	$583	03/31/2024
BlackRock Inc.	71,236	$557	12/31/2023
SPIR	71,236	$557	12/31/2023
Ancora Advisors LLC	62,260	$487	12/31/2023
SPIR	62,260	$487	12/31/2023
Bridgeway Capital Management Inc.	60,000	$469	12/31/2023
SPIR	60,000	$469	12/31/2023
Simplex Trading LLC		$467	12/31/2023
Call	74,600	$583	12/31/2023
Put	20,400	$159	12/31/2023
SPIR	5,604	$43	12/31/2023
Citigroup Inc.	58,129	$455	12/31/2023
SPIR	58,129	$455	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	48,881	$382	12/31/2023
SPIR	48,881	$382	12/31/2023
State Street Corp	48,541	$380	12/31/2023
SPIR	48,541	$380	12/31/2023
Renaissance Technologies LLC	39,857	$312	12/31/2023
SPIR	39,857	$312	12/31/2023
Northern Trust Corp	38,009	$297	12/31/2023
SPIR	38,009	$297	12/31/2023
Millennium Management LLC	33,228	$260	12/31/2023
SPIR	33,228	$260	12/31/2023
Schroder Investment Management Group	32,323	$259	12/31/2023
SPIR	32,323	$259	12/31/2023
Cubist Systematic Strategies LLC	30,501	$239	12/31/2023
SPIR	30,501	$239	12/31/2023
Squarepoint Ops LLC	30,276	$237	12/31/2023
SPIR	30,276	$237	12/31/2023
Cresset Asset Management LLC	29,744	$233	12/31/2023
SPIR	29,744	$233	12/31/2023
Morgan Stanley	28,777	$225	12/31/2023
SPIR	28,777	$225	12/31/2023
Stifel Financial Corp	26,247	$205	12/31/2023
SPIR	26,247	$205	12/31/2023
Shay Capital LLC	23,627	$185	12/31/2023
SPIR	23,627	$185	12/31/2023
Russell Investments Group Ltd.	21,844	$171	12/31/2023
SPIR	21,844	$171	12/31/2023
Jump Financial LLC	21,300	$167	12/31/2023
SPIR	21,300	$167	12/31/2023
LMR Partners LLP	18,653	$146	12/31/2023
SPIR	18,653	$146	12/31/2023
Two Sigma Investments LP	17,156	$134	12/31/2023
SPIR	17,156	$134	12/31/2023
Jane Street Group LLC	15,365	$120	12/31/2023
SPIR	15,365	$120	12/31/2023
Verition Fund Management LLC	14,366	$112	12/31/2023
SPIR	14,366	$112	12/31/2023
PDT Partners LLC	12,476	$98	12/31/2023
SPIR	12,476	$98	12/31/2023
Occudo Quantitative Strategies LP	10,418	$81	12/31/2023
SPIR	10,418	$81	12/31/2023
Commonwealth Equity Services LLC	10,117	$79	12/31/2023
SPIR	10,117	$79	12/31/2023
Citadel Advisors LLC		$45	12/31/2023
Call	25,100	$196	12/31/2023
Put	23,620	$185	12/31/2023
SPIR	4,287	$34	12/31/2023
Qube Research & Technologies Ltd	1,443	$11	12/31/2023
SPIR	1,443	$11	12/31/2023
Rhumbline Advisers	1,166	$9	12/31/2023
SPIR	1,166	$9	12/31/2023
Royal Bank of Canada	1,074	$8	12/31/2023
SPIR	1,074	$8	12/31/2023
Toth Financial Advisory Corp	375	$4	03/31/2024
SPIR	375	$4	03/31/2024
Bank of America Corp DE	520	$4	12/31/2023
SPIR	520	$4	12/31/2023
Cambridge Trust Co.	500	$4	12/31/2023
SPIR	500	$4	12/31/2023
Point72 Asia Singapore Pte. Ltd.	409	$3	12/31/2023
SPIR	409	$3	12/31/2023
Wells Fargo & Company MN	258	$2	12/31/2023
SPIR	258	$2	12/31/2023
Sandy Spring Bank	187	$1	12/31/2023
SPIR	187	$1	12/31/2023
Skaana Management L.P.		$1	12/31/2023
Call	100	$1	12/31/2023
Cutler Group LP		$0	03/31/2024
Put	200	$1	03/31/2024
SPIR	100	$1	03/31/2024
Call	200	$0	03/31/2024
Pacifica Partners Inc.	2	$0	03/31/2024
SPIR	2	$0	03/31/2024
JPMorgan Chase & Co.	38	$0	12/31/2023
SPIR	38	$0	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
Call	0	$0	12/31/2023
SPIR	0	$0	12/31/2023
W EXP 01 01 203	0	$0	12/31/2023
National Bank of Canada FI	1	$0	12/31/2023
SPIR	1	$0	12/31/2023
Clear Street LLC	12	$0	12/31/2023
SPIR	12	$0	12/31/2023
Cape Investment Advisory Inc.	9	$0	12/31/2023
SPIR	9	$0	12/31/2023