William A Zartler

CIK 1520378 · View on SEC EDGAR ↗

Insider

First SEC filing: May 11, 2011 · Latest: May 11, 2011

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Insider transactions

1 buys (P) 0 sells (S) Net: $248,300 + 51 non-open-market transactions below Avg return of open purchases vs now: 123.0% last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

51 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Sept. 9, 2025 SEI P 10,000 $24.83 $248,300 1,049,227 Direct +0.96% Acquired 123.0% (price as of 2026-08-21)
May 21, 2025 SEI P 10,000 $21.78 $217,800 1,039,227 Direct +0.97% Acquired 154.2% (price as of 2026-08-21)
March 7, 2025 SEI P 10,000 $23.23 $232,300 1,029,227 Direct +0.98% Acquired 138.3% (price as of 2026-08-21)
March 6, 2025 SEI P 10,000 $24.07 $240,700 1,019,227 Direct +0.99% Acquired 130.0% (price as of 2026-08-21)
Dec. 16, 2022 SEI S 23,000 $9.50 $218,500 538,175 Direct -4.10% Disposed 482.7% (price as of 2026-08-21)
Sept. 15, 2022 SEI P 10,000 $10.47 $104,700 561,175 Direct +1.81% Acquired 428.7% (price as of 2026-08-21)
May 9, 2022 SEI P 7,000 $10.99 $76,930 551,175 Direct +1.29% Acquired 403.7% (price as of 2026-08-21)
Dec. 7, 2021 SEI P 10,000 $6.64 $66,400 343,661 Direct +3.00% Acquired 733.7% (price as of 2026-08-21)
Nov. 22, 2021 SEI P 15,000 $6.71 $100,650 333,661 Direct +4.71% Acquired 725.0% (price as of 2026-08-21)
March 10, 2021 SEI S 400,000 $12.75 $5,100,000 0 Indirect -100.00% Disposed 334.2% (price as of 2026-08-21)
Feb. 25, 2021 SEI S 500,000 $11.00 $5,500,000 0 Indirect -100.00% Disposed 403.3% (price as of 2026-08-21)
May 22, 2018 SEI P 6,000 $16.17 $97,020 83,911 Direct +7.70% Acquired 242.4% (price as of 2026-08-21)
Jan. 11, 2018 SEI S 567,444 $21.65 $12,285,163 0 Indirect -100.00% Disposed 155.7% (price as of 2026-08-21)
Jan. 11, 2018 SEI S 93,447 $21.65 $2,023,128 77,911 Direct -54.53% Disposed 155.7% (price as of 2026-08-21)
Nov. 15, 2017 SEI S 222,850 $15.04 $3,351,664 0 Indirect -100.00% Disposed 268.1% (price as of 2026-08-21)
Nov. 15, 2017 SEI S 39,705 $15.04 $597,163 77,911 Direct -33.76% Disposed 268.1% (price as of 2026-08-21)
Nov. 14, 2017 SEI S 848,954 $15.04 $12,768,268 0 Indirect -100.00% Disposed 268.1% (price as of 2026-08-21)
Nov. 14, 2017 SEI S 151,259 $15.04 $2,274,935 77,911 Direct -66.00% Disposed 268.1% (price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
March 10, 2021 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (400,000) — — 400,000 Disposed
Feb. 1, 2021 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (500,000) — — 500,000 Disposed
Jan. 11, 2018 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (567,444) — — 567,444 Disposed
Jan. 11, 2018 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (93,447) — — 93,447 Disposed
Nov. 14, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (222,850) — — 222,850 Disposed
Nov. 14, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (39,705) — — 39,705 Disposed
Nov. 13, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (848,954) — — 848,954 Disposed
Nov. 13, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (151,259) — — 151,259 Disposed
June 16, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (5,685,980) $0.00 — 5,685,980 Acquired
June 16, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (11,595,898) $0.00 — 11,595,898 Disposed
May 17, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (11,595,898) $0.00 — 11,595,898 Acquired
May 17, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (366,764) $0.00 — 366,764 Acquired
May 17, 2017 SEI Solaris Oilfield Infrastructure, LLC Units Class A Common Stock (1,011,230) $0.00 — 1,011,230 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
May 11, 2011 NGL Common Units 1,307,992 Indirect
May 11, 2011 NGL Subordinated Units [F2]→ Common Units (1,544,100) 1,544,100 Indirect

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

SEI

CEO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $450,000 — $12,574,354 — $825,000 — $21,000 $13,870,354
2024 $321,000 $211,100 $2,978,466 — $288,900 — $20,700 $3,820,166
2023 $321,000 — $1,832,000 — $320,000 — $19,800 $2,492,800

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.