Solaris Energy Infrastructure SEI Insider Ownership

NYSE SEI

$63.29 -2.47 (-3.76%)

As of: Oct 20, 2026 · 3:59 PM EDT

Insider Holdings by Owner

20.57Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

29.08%

▼-0.072% pp QoQ

Shares Held by Insiders

22.27Mn

filed for Sep 2026

▼-0.25% QoQ

Shares Outstanding

76.57Mn

76,566,540 shares

Direct Holdings

13.60Mn

Indirect: 8.67Mn

Net Shares Traded (QoQ)

-55.06K

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

In the last 12 months, insiders at Solaris Energy Infrastructure made open-market purchases of $1.3 million (22.26K shares) and open-market sales of $406.64 million (6.27Mn shares).

Behind Solaris Energy Infrastructure's open-market trades in the past 12 months were 2 insiders buying and 8 insiders selling.
Among SEI insiders, Aj Teague (Director) bought the most stock on the open market in the past 12 months: $1.15 million (18.59K shares), most recently on September 8, 2026.
On the selling side, KTR Management Company, LLC (10% owner) was the top open-market seller of Solaris Energy Infrastructure over the past 12 months, with $247.56 million sold (4.11Mn shares) and the latest sale on April 30, 2026.
Away from the open market, SEI insiders received 762.11K shares in stock awards, acquired 6.11Mn shares through option exercises and conversions and gave up 107.89K shares to cover taxes or exercise prices over the last 12 months.
Per Business Quant, SEI insiders together hold 22.27Mn shares based on their latest Form 4 filings, down 0.25% from 22.32Mn shares at the end of Q2 2026 and down 7.34% from 24.03Mn shares at the end of Q3 2025.
Direct holdings account for 13.6Mn shares (61.08%) of SEI's insider total, and indirect holdings through trusts, partnerships and family members for 8.67Mn shares (38.92%).
Per Business Quant, 17 insiders of SEI hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
Solaris Energy Infrastructure's three largest insider shareholders, based on their latest Form 4 filings, are Yorktown Energy Partners X, L.P. (10% owner, 7.08Mn shares), William A. Zartler (Chairman and Co CEO, 5.56Mn shares) and W. Howard Keenan Jr. (Director, 5.17Mn shares).
Yorktown Energy Partners X, L.P. holds 31.79% of the combined insider position in Solaris Energy Infrastructure.
In the past year, 15 insiders of Solaris Energy Infrastructure submitted 31 Form 4 filings reporting trades, awards or other transactions.
The insider holdings and trades above for Solaris Energy Infrastructure reflect Form 4 filings through September 9, 2026.

Form 4 Holdings

Insiders Holding SEI

Insiders 20

Shares held 20.57Mn

Of outstanding 26.87%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Energy Partners X, L.P. Yorktown	TenPercentOwner	7,079,234	0	7,079,234	34.4%	18 Dec, 2024
2	W Howard Jr Keenan	Director	92,039	5,079,234	5,171,273	25.1%	25 Aug, 2026
3	Holdings, Lp Thrc	TenPercentOwner	3,178,875	0	3,178,875	15.5%	12 Dec, 2023
4	Turbines, Inc. J	TenPercentOwner	2,114,783	0	2,114,783	10.3%	29 Jul, 2025
5	William A Zartler	Chairman And Co Ceo	1,314,883	0	1,314,883	6.4%	03 Mar, 2026
6	Kyle S. Ramachandran	President	407,779	0	407,779	2.0%	03 Mar, 2026
7	Amanda M Brock	Co Chief Executive Officer	276,080	0	276,080	1.3%	03 Mar, 2026
8	Kelly L. Price	Chief Operating Officer	271,519	0	271,519	1.3%	04 Mar, 2025
9	Cynthia M. Durrett	Chief Administrative Officer	154,527	0	154,527	0.8%	03 Mar, 2026
10	Aj Teague	Director	116,865	14,960	131,825	0.6%	09 Sep, 2026
11	Christopher M Powell	Chief Legal Officer	114,117	0	114,117	0.6%	12 May, 2026
12	Edgar R. Jr. Giesinger	Director	94,202	0	94,202	0.5%	25 Aug, 2026
13	F Gardner Parker	Director	84,812	0	84,812	0.4%	27 Aug, 2024
14	Laurie H Argo	Director	48,170	0	48,170	0.2%	25 Aug, 2026
15	Lindsay R. Bourg	Chief Accounting Officer	34,815	0	34,815	0.2%	03 Mar, 2023
16	Christopher P. Wirtz	Chief Accounting Officer	34,782	0	34,782	0.2%	02 Jun, 2026
17	Stephan E Tompsett	Chief Financial Officer	30,000	0	30,000	0.1%	17 Feb, 2026
18	Mario Max Yzaguirre	Director	11,484	0	11,484	0.1%	25 Aug, 2026
19	Ray N Jr Walker	Director	8,835	0	8,835	0.0%	25 Aug, 2026
20	James R Burke	Director	8,771	0	8,771	0.0%	25 Aug, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

547 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
08 Sep, 2026	Aj Teague	Director	Acquired P	3,900	$64.21	$250.42K	116,865	Direct
08 Sep, 2026	Aj Teague	Director	Acquired P	3,900	$64.25	$250.58K	14,960	Indirect
23 Aug, 2026	W Howard Jr Keenan	Director	Acquired A	2,989	$0.00	$0	92,039	Direct
23 Aug, 2026	Edgar R. Jr. Giesinger	Director	Acquired A	3,246	$0.00	$0	94,202	Direct
23 Aug, 2026	Ray N Jr Walker	Director	Acquired A	3,075	$0.00	$0	8,835	Direct
23 Aug, 2026	James R Burke	Director	Acquired A	3,075	$0.00	$0	8,771	Direct
23 Aug, 2026	Laurie H Argo	Director	Acquired A	3,331	$0.00	$0	48,170	Direct
23 Aug, 2026	Mario Max Yzaguirre	Director	Acquired A	3,160	$0.00	$0	11,484	Direct
23 Aug, 2026	Aj Teague	Director	Acquired A	3,075	$0.00	$0	112,965	Direct
01 Jun, 2026	Christopher P. Wirtz	Chief Accounting Officer	Disposed F	1,303	$69.54	$90.61K	34,782	Direct
12 May, 2026	Laurie H Argo	Director	Disposed S	5,200	$72.88	$378.98K	44,839	Direct
13 May, 2026	Christopher P. Wirtz	Chief Accounting Officer	Disposed S	700	$77.22	$54.05K	36,085	Direct
11 May, 2026	Christopher M Powell	Chief Legal Officer	Disposed S	9,179	$73.90	$678.33K	141,790	Direct
11 May, 2026	Christopher M Powell	Chief Legal Officer	Disposed S	25,492	$74.84	$1.91Mn	116,298	Direct
11 May, 2026	Christopher M Powell	Chief Legal Officer	Disposed S	2,181	$75.33	$164.29K	114,117	Direct
08 May, 2026	Ray N Jr Walker	Director	Disposed S	56,841	$72.11	$4.10Mn	5,760	Direct
08 May, 2026	Aj Teague	Director	Acquired P	3,425	$72.98	$249.96K	109,890	Direct
08 May, 2026	Aj Teague	Director	Acquired P	2,750	$72.98	$200.70K	11,060	Indirect
06 May, 2026	W Howard Jr Keenan	Director	Disposed J	2,000,000	$0.00	$0	5,079,234	Indirect
06 May, 2026	W Howard Jr Keenan	Director	Acquired C	2,000,000	$0.00	$0	2,000,000	Indirect

Showing 1 to 20 of 547 transactions