Syntec Optics Holdings, Inc.: which funds bought and sold

Institutions that bought and sold Syntec Optics Holdings shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 47 institutions that filed 13F reports for both quarters added to or opened positions in Syntec Optics Holdings, and 20 cut or closed them. Together they added a net 918K shares, +65.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 63K shares (−40.9%); index fund managers were net buyers of 794K shares (+290.8%). 30 opened a new position and 12 sold out entirely.

Bought, Q2 2026 47 institutions, 30 of them new holders Sold, Q2 2026 20 institutions, 12 of them sold out

Net change, all compared +918K shares (+65.5%)

Net change, active managers −63K shares (−40.9%), 3 bought, 4 sold

Buyers versus sellers

institutions compared, 69

47 bought 2 20 sold

Active managers and hedge funds 3 bought · 4 sold · −63K

Index fund managers 10 bought · 0 sold · +794K

Other institutions 34 bought · 16 sold · +187K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Tidal Investments LLC	+614K New position	614K	$7.6M
Blackrock, Inc. Index funds	+388K +974.7%	428K	$5.3M
Geode Capital Management, LLC Index funds	+120K +132.0%	211K	$2.6M
Vanguard Portfolio Management LLC Index funds	+77K New position	77K	$954,604
State Street Corp Index funds	+62K +253.5%	86K	$1.1M
Inspire Investing, LLC	+56K New position	56K	$695,059
Nuveen, LLC	+56K New position	56K	$694,337
Northern Trust Corp Index funds	+48K +401.8%	60K	$743,751
Vanguard Capital Management LLC Index funds	+37K +54.0%	106K	$1.3M
Morgan Stanley	+32K +1460.3%	34K	$424,272
Alliancebernstein L.P. Active manager	+28K New position	28K	$353,580
Proshare Advisors LLC Index funds	+19K New position	19K	$239,726
Vanguard Fiduciary Trust Co Index funds	+19K +51.6%	56K	$702,192
Engineers Gate Manager LP Hedge fund	+18K +125.8%	31K	$392,051
Charles Schwab Investment Management Inc Index funds	+17K New position	17K	$214,912
Bank Of New York Mellon Corp	+17K New position	17K	$214,656
State Of Wyoming	+16K New position	16K	$198,665
Marex Group Ltd	+16K New position	16K	$194,220
Royal Bank Of Canada	+15K +21.0%	89K	$1.1M
Y-Intercept (Hong Kong) Ltd	+11K New position	11K	$138,382

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Alliancebernstein L.P. Active manager	+28K New position	28K	$353,580
Engineers Gate Manager LP Hedge fund	+18K +125.8%	31K	$392,051
FMR LLC Active manager	+33 +3300.0%	34	$423

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Arosa Capital Management LP	−250K Sold out	0	—
DNB Asset Management As	−147K −67.8%	69K	$864,677
Goldman Sachs Group Inc	−89K Sold out	0	—
Jane Street Group, LLC	−79K Sold out	0	—
Marshall Wace, LLP Hedge fund	−78K Sold out	0	—
Ars Investment Partners, LLC	−56K Sold out	0	—
HRT Financial LP	−24K Sold out	0	—
Tower Research Capital LLC (TRC)	−19K −94.2%	1,188	$14,790
Citadel Advisors LLC Hedge fund	−14K Sold out	0	—
Omers Administration Corp	−13K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−11K Sold out	0	—
Tru Independence Asset Management 2, LLC	−10K Sold out	0	—
Gables Capital Management Inc.	−6,500 Sold out	0	—
Millennium Management LLC Hedge fund	−5,392 −14.9%	31K	$383,136
UBS Group AG	−4,461 −9.6%	42K	$522,464
Vanguard Global Advisers, LLC	−3,199 −69.1%	1,431	$17,816
Steward Partners Investment Advisory, LLC	−1,250 Sold out	0	—
LPL Financial LLC	−1,050 −5.3%	19K	$232,068
BNP Paribas Financial Markets	−578 −32.1%	1,222	$15,214
Mcadam, LLC	−423 −3.0%	14K	$168,922

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Marshall Wace, LLP Hedge fund	−78K Sold out	0	—
Citadel Advisors LLC Hedge fund	−14K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−11K Sold out	0	—
Millennium Management LLC Hedge fund	−5,392 −14.9%	31K	$383,136

New positions

largest by value

Institution	Shares	Value June 30, 2026
Tidal Investments LLC	614K	$7.6M
Vanguard Portfolio Management LLCIndex funds	77K	$954,604
Inspire Investing, LLC	56K	$695,059
Nuveen, LLC	56K	$694,337
Alliancebernstein L.P.Active manager	28K	$353,580
Proshare Advisors LLCIndex funds	19K	$239,726
Charles Schwab Investment Management IncIndex funds	17K	$214,912
Bank Of New York Mellon Corp	17K	$214,656
State Of Wyoming	16K	$198,665
Marex Group Ltd	16K	$194,220

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Arosa Capital Management LP	250K	$1.8M
Goldman Sachs Group Inc	89K	$624,137
Jane Street Group, LLC	79K	$556,361
Marshall Wace, LLPHedge fund	78K	$551,497
Ars Investment Partners, LLC	56K	$396,000
HRT Financial LP	24K	$166,000
Citadel Advisors LLCHedge fund	14K	$99,214
Omers Administration Corp	13K	$89,281
Hudson Bay Capital Management LPHedge fund	11K	$74,940
Tru Independence Asset Management 2, LLC	10K	$70,300

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 58
Ten largest holders: 80.2%
Index fund managers: 36.3%
Active managers and hedge funds: 3.1%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	3	4	1	3	−63K	−40.9%
Index fund managers	10	0	4	0	+794K	+290.8%
Other institutions	34	16	25	9	+187K	+19.2%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Syntec Optics Holdings.

Only managers that filed a holdings report for both quarters are compared (69 here). 1 other holder is left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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